In 1924 the temperature in Fairfield Montana drop 63° to -21° in 12 hours. What was the average hourly change in temperature

Answers

Answer 1
Since we’re trying to find the hourly change, we need to find out first the change in the temperature. We can convert 21 to a positive and subtract 63 from 21.

63 minus 21 is 42.
The temperature change would be positive 42 degrees.

Now, since we’re trying to find the hourly change, we’d need to do 42 divided by 12.

42 divided by 12 is is 3.5.

The hourly change in temperature is 3.5 degrees.

Related Questions

i need help on finding out this answer i am really confused so plz help me

Answers

(4 - 5y) - 2(3.5y - 8)

first distribute

(4- 5y) - 7y + 16

Then simplify
-12y + 20

Then simplify

4(-3y + 5)

hope this helps
You can drop the parentheses around 4 - 5y.  (4 - 5y) is the same as 4 - 5y.

But you must expand (multiply out) -2(3.5y - 8).  The result is
        -7y + 16      Here we are applying the Distributive Property of                                                  Multiplication.

Now combine 4 - 5y and - 7y + 16.  Result:   -12y + 20 (answer)

If you need clarification here, please ask!

a square pyramid and a cube have the same bases and volumes. How are their heights related? Explain.

Answers

A square pyramid's height is three times the side of the base of a cube if they have the same base and volume, due to their differing volume formulas.

If a square pyramid and a cube have the same base and volume, the relationship between their heights can be determined using the formulas for their volumes. The volume of a cube is given by [tex]V = s^3,[/tex] where s is the length of a side of the cube's base. The volume of a square pyramid is [tex]V = (1/3) * b^2 * h,[/tex] where b is the length of the base side and h is the pyramid's height. Since both have the same volume, we can set these equations equal to each other and solve for h.

Setting the volumes equal: [tex]s^3 = (1/3) * s^2 * h,[/tex] simplifying to h = 3s. Thus, the height of the pyramid is three times the side of the base of the cube. This is because a cube's volume grows as a cube of its side length, while a pyramid's volume is one third of the base area times the height. Therefore, since they have the same volume, the height of the pyramid must be three times larger to compensate for the 1/3 factor in its volume formula.

Mandy is making two dozen fruit cups. She wants to put 2.375 oz of fruit in each cup. How many total ounces of fruit does she need

Answers

It is 57 ounces because 1 dozen is 12 so 2 dozen is 24 so you have to do 24 x 2.375 to get 57 ounces.
You would multiply how much she wants to put in each cup (2.375oz) by the total amount of cups (24) and you would get 57 total ounces of fruit.

the foundation of a house sinking 5 inches positing or negative

Answers

It is sinking, so it is going down.
In a number line, going down is negative

your answer is -5 inch

hope this helps

Svester rectangular gradeb is 28 m long and has an area of 392m what is the width of the garden

Answers

392/28 is 14, so the width of the garden would be 14 meters.

5. 3g + 9 = 2. 3g + 15
Solve for G

Answers

5.3g + 9 = 2.3g + 15
5.3g + 9 - 9 = 2.3g + 15 - 9
5.3g = 2.3g + 6
5.3g - 2.3g = 2.3g - 2.3g + 6
3g = 6
3g / 3 = 6 / 3
g = 2
answer: g = 2
hope this helps:D

plz give brainiest

the length of a picture frame is 3 inches greater than the width. The perimeter is less than 52 inches. Describe the dimensions of the frame.

Answers

Hi. To solve this problem, we break it down like this:

P = 2L + 2W < 52

Set it equally

L + W = 26 (because 1/2 of 52 is 26)
(W + 3) + W = 26
2W = 23
W = 11 1/2
L = W + 3 = 14 1/2

So the final dimensions are: Width = 11 1/2 and the Length is 14 1/2

I hope this helps.

Take care,
Diana
Final answer:

To describe the dimensions of the frame, we can represent the width as x inches and the length as (x+3) inches. The perimeter is less than 52 inches. We can solve an inequality using this information to find the possible values for the width.

Explanation:

To describe the dimensions of the picture frame, let's represent the width of the frame as x inches. According to the information given, the length of the frame is 3 inches greater than the width, so it can be represented as (x+3) inches. The perimeter of a rectangle is given by the formula: Perimeter = 2(width + length). Since the perimeter is less than 52 inches, we can form the following inequality: 2(x + (x+3)) < 52. Solving this inequality will give us the range of possible values for the width, and we can then determine the corresponding length of the frame.

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A picture of a school’s mascot is 18 in. wide and 24 in. long. It is enlarged proportionally to banner size. If the width is enlarged to 63 in., what is the length of the banner?
a.
84 in.
c.
12.5 in.
b.
18 in.
d.
6.5 in.

Answers

18/24 = 63/x...18 width to 24 length = 63 width to x length
cross multiply
(18)(x) = (24)(63)
18x = 1512
x = 1512/18
x = 84 inches <===

The scale factor is 3.5 and the length of the banner is 84 inches. Then the correct option is A.

What is dilation?

Dilation means the changing of the size of the object without changing the shape. The size of the object may be increased or decreased based on the scale factor.

A picture of a school’s mascot is 18 in. wide and 24 in. long.

It is enlarged proportionally to banner size.

If the width is enlarged to 63 in.

Then the scale factor will be

[tex]\rm S.F. = \dfrac{63}{18}\\\\S.F. = 3.5[/tex]

Then the length of the banner will be

[tex]\rm Banner \ length = S.F. \times 24\\\\Banner \ length = 3.5 \times 24\\\\Banner \ length = 84[/tex]

The length of the banner is 84 inches.

More about the dilation link is given below.

https://brainly.com/question/2856466

Factor GCF (greatest common factor)

2k^2 + 7k

Answers

Simplifying 2k2 + 7k = 0 Reorder the terms: 7k + 2k2 = 0 Solving 7k + 2k2 = 0 Solving for variable 'k'. Factor out the Greatest Common Factor (GCF), 'k'. k(7 + 2k) = 0 Subproblem 1Set the factor 'k' equal to zero and attempt to solve: Simplifying k = 0 Solving k = 0 Move all terms containing k to the left, all other terms to the right. Simplifying k = 0 Subproblem 2Set the factor '(7 + 2k)' equal to zero and attempt to solve: Simplifying 7 + 2k = 0 Solving 7 + 2k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 2k = 0 + -7 2k = 0 + -7 Combine like terms: 0 + -7 = -7 2k = -7 Divide each side by '2'. k = -3.5 Simplifying k = -3.5Solutionk = {0, -3.5}

What is the quotient for -20/-2?

Answers

the quotient is 10 :)
10 because you just do -20 divided by -2

tammy claims that 20% is the same as 2/5 is she correct

Answers

False, 20% is 2/10, which is 1/5

hope this helps
No she is not correct. 20% is equal to 1/5 because it takes 5 20s to get to 100 so 20 is a/5. 2/5 is 40% because 2x20=40

Bill bought 4 jigsaw puzzles each puzzle has 500 pieces . how many pieces are in all the puzzles

Answers

2,000 because 4 multiplied by 500 equals 2,000

What is the sum of the two largest numbers in the list 1/3,2/7,3/10,4/13,5/17 Express your answer in simplest form.

Answers

2 largest number is 1/3 and 4/13
1/3 + 4/13 = 25/39

math question down below

Answers

answer is C. 0.6 (6 is repeating)

hope it helps

I=prt(interest=principal.rate.time) solve for p

Answers

I = PRT/100
100I = PRT
P= 100I÷RT
P = 100I/RT

Answer:

Multiply the Rate by the Time

Step-by-step explanation:

Hiya! So you would multiply R(rate) by T(time) Then you would divide by I(interest) and you should get your answer for P(principle)

Ex 24= P x 0.04 x 3   0.04 x 3= 0.12   24 divided by 0.12 = 200 So 200= P

                  (4%)

Hope this helped you!

the probability of picking a red marble from a bag of 30 marbles is 1/5. how many blue marbles must be removed from the bag to increase the probability to 1/4

Answers

Final answer:

To increase the probability from 1/5 to 1/4, we need to remove 24 blue marbles from the bag.

Explanation:

To increase the probability from 1/5 to 1/4, we need to find the number of blue marbles that need to be removed. Let's assume there are x blue marbles in the bag. Initially, the total number of marbles in the bag is 30, and the probability of picking a red marble is 1/5. This means that (30 - x)/30 = 1/5. Solving this equation, we get x = 24. Therefore, 24 blue marbles need to be removed from the bag to increase the probability to 1/4.

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Final answer:

Because the initial probability of picking a red marble from 30 marbles is 1/5, there are 6 red marbles in the bag. If we want to increase the probability of drawing a red marble to be 1/4, we need to reduce the total number of marbles in the bag to 24. So, we must remove 6 non-red marbles, which could be blue.

Explanation:

The subject of your question is probability in Mathematics. Initially, we have 30 marbles, and the probability of picking a red one is 1/5. So, there are 1/5 * 30 = 6 red marbles in the bag. Thus, the bag also contains 24 non-red marbles, which can be blue or other colors.

Next, we want the probability of picking a red marble to be 1/4. Since the number of red marbles will remain the same, we need to change the total number of marbles in the bag. If 'x' is the number of marbles in the bag, then 6/x = 1/4, which means x = 24. Since initially we had 30, to get to 24 we need to remove 6 marbles.

Therefore, if we remove 6 blue marbles (or any non-red marbles), the probability of picking a red marble will increase to 1/4.

Learn more about Probability here:

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What is the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i?

Answers

just subrtact and add then you will get 5i

Answer:

5


Step-by-step explanation:

A little trick: the imaginary part ([tex]i[/tex]) in the coordinates of complex numbers act same as the y-coordinate in a rectangular plane.

So we want the distance between the coordinate points (4,2) and (7,-2).


How do we get the distance between 2 points? We use the distance formula.

Distance Formula = [tex]\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Where [tex](x_1,y_1)=(4,2)[/tex]  and  [tex](x_2,y_2)=(7,-2)[/tex]


Let's solve for distance:

[tex]\sqrt{(-2-2)^2+(7-4)^2}\\ =\sqrt{(-4)^2+(3)^2} \\=\sqrt{16+9} \\=\sqrt{25} \\=5[/tex]

Hence, the length of the segment in the complex plane with endpoints at 4 + 2i and 7 – 2i is 5.


The art store carries 28 different shades of colored paper.There are 5 packages of each shade of paper on the store’s shelves. A teacher bought 2 packages of each of the 14 different shades. How many packages of colored paper did the store have left on the shelves?

Answers

I believe the answer is 112 packages. I think this because 28 packages x 5 packages each is 140. 14 shade packages x 2 packages each is 28.
140-28= 112 packages
The answer to your problem is 112

What is 89-99•99-102

Answers

Greetings!

Follow PEDMAS:
Parenthesis
Exponents
Division/Multiplication
Addition/Subtraction

[tex]89-99*99-102[/tex]
Multiply 99*99.
[tex]89-9801-102[/tex]
Subtract from Left to Right.
[tex]-9712-102[/tex]
The Answer Is:
[tex]-9814[/tex]

Hope this helps.
-Benjamin

Answer:

-9814

Step-by-step explanation:

P.E.M=D.A=S- The order of operations

P.erenthisis

E.xponent

M.ultiplication

D.ivision

A.ddition

S.ubtraction

first multiplication, -99•99, = -9801

now we work left to right, as subtraction is the same step as subtraction.

89-9801=9712

-9712-102=-9814

Please help me with this problem: Simplify -7 and the square root of 2.

Answers

-7 is already simplified, and the square root of two is 4
Both -7 and the square root of 2 are already simplified because both are prime numbers with factors consisting of 1 and itself.

Which number is the smallest? 4.4 ⋅ 10−5, 3.99 ⋅ 10−6, 2.6 ⋅ 102, 1.85 ⋅ 103

Answers

3.99×10^-6 is the smallest number

A farmer has to transport 20 people and 32 sheep to a market. He can use either Fiats (x) which take 2 people and 1 sheep, or Rolls Royce (y) which take 2 people and 4 sheeps. He must not use more than 15 cars altogether. What are the inequalities ?

Answers

uhhhhhhhhhh I think its is 84

a. The lowest total number of cars is ( x = 3 ) Fiats and ( y = 7 ) Rolls Royces, totaling 10 cars.

b. the cheapest solution is to use 3 Fiats and 7 Rolls Royces, costing £240.

To solve this problem, we need to use a system of linear equations and optimization techniques.

Let's define ( x ) as the number of Fiats and ( y ) as the number of Rolls Royces.

The constraints are:

1. People constraint: [tex]\( 2x + 2y \geq 20 \)[/tex] (at least 20 people)

2. Sheep constraint: [tex]\( x + 4y \geq 32 \)[/tex] (at least 32 sheep)

3. Car constraint: [tex]\( x + y \leq 15 \)[/tex] (no more than 15 cars)

We also want to minimize the total number of cars, so the objective function is simply ( x + y ).

(a) To find the lowest total number of cars, we'll solve the system of equations:

[tex]\[\begin{cases}2x + 2y \geq 20 \\x + 4y \geq 32 \\x + y \leq 15\end{cases}\][/tex]

We solve these inequalities by  algebraically:

1. Solve the first two equations simultaneously:

 [tex]\[ \begin{cases} 2x + 2y = 20 \\ x + 4y = 32 \end{cases} \][/tex]

  Multiply the second equation by 2 to match coefficients with the first equation:

 [tex]\[ \begin{cases} 2x + 2y = 20 \\ 2x + 8y = 64 \end{cases} \][/tex]

Subtract the first equation from the second:

[tex]\[ \begin{aligned} (2x + 8y) - (2x + 2y) &= 64 - 20 \\ 6y &= 44 \\ y &= \frac{44}{6} \\ y &= 7.33 \end{aligned} \][/tex]

However, ( y ) must be a whole number, so we take ( y = 7).

Substitute ( y = 7 ) into the first equation:

  [tex]\[ \begin{aligned} 2x + 2(7) &= 20 \\ 2x + 14 &= 20 \\ 2x &= 6 \\ x &= 3 \end{aligned} \][/tex]

Therefore, the lowest total number of cars is ( x = 3 ) Fiats and ( y = 7 ) Rolls Royces, totaling 10 cars.

(b) To find the cheapest solution, we calculate the cost for each option:

Cost of Fiats: £10 x 3 = £30

Cost of Rolls Royces:  £30 x 7 = £210

Total cost:  £30 + £210 = £240

So, the cheapest solution is to use 3 Fiats and 7 Rolls Royces, costing £240.

Complete Question:

A farmer has to transport 20 people and 32 sheep to a market. He can use either Fiats (x) which take 2 people and 1 sheep, or Rolls Royces ( y) which take 2 people and 4 sheep. He must not use more than 15 cars altogether.

(a) What is the lowest total numbers of cars he could use?

(b) If it costs £10 to hire each Fiat and £30 for each Rolls Royce, what is the cheapest solution?

I need to simplify this
(3x^2+2xy+4y^2) + (6x^2-5xy+3y^2) + (9y^2-25y^2)

Answers

(3x² + 2xy + 4y²) + (6x² - 5xy + 3y²) + (9y² - 25y²)

Get rid of the parenthesis :)

3x² + 2xy + 4y² + 6x² - 5xy + 3y² + 9y² - 25y²

Add like terms.

(3x² + 6x²) + (2xy - 5xy) + (4y² + 3y² + 9y² - 25y²)

Simplify.

(9x²) + (-3xy) + (-11y²)

Get rid of the parenthesis.

9x² - 3xy - 11y²

~Hope I helped!~

Jerry had 3 3/4 quarts of milk in his refrigerator. He used 1/2 of the milk for a recipe.   How much milk is left in the refrigerator? Express your answer in simplest form.   A. 1 1/2 quarts   B. 1 3/4 quarts   C. 1 7/8 quarts   D. 2 3/4 quarts

Answers

Hi there! To find the answer to this question, all you have to do is divide by 2. When it comes to dividing fractions, you keep, change flip. Keep 3 3/4 (15/4) the same, change division into multiplication, and flip 2/1 into 1/2. Multiply across. 15/4 * 1/2 is 15/8 or 1 7/8 in mixed fraction form in simplest form. Jerry had 1 7/8 quarts of milk left in the refrigerator. The answer is C: 1 7/8 quarts.

5._4 - (_.8_) = -3.61
fill in the blanks please !!

Answers

5.24 - (8.85) = -3.61

Answer:

[tex]5.24-8.85=-3.61[/tex]

Step-by-step explanation:

We have been given an equation. We are asked to fill in the blanks for the given equation.

5._4 - (_.8_) = -3.61

We will find each part separately as:

For hundredths digit:

[tex]4-?=-1[/tex]  

[tex]4-4-?=-1-4[/tex]

[tex]-?=-5[/tex]

[tex]?=5[/tex]  

So hundredths digit would be 5.

Tenth digit:

[tex]?-8=-6[/tex]

[tex]?-8+8=-6+8[/tex]

[tex]?=2[/tex]

Ones digit:

[tex]5-?=-3[/tex]

[tex]5-5-?=-3-5[/tex]

[tex]-?=-8[/tex]

[tex]?=8[/tex]

Substitute the values in given equation.

5.24 - (8.85) = -3.61

We can verify our answer by subtracting 8.85 from 5.24.

[tex]5.24-8.85=-3.61[/tex]

Therefore, our equation would be [tex]5.24-8.85=-3.61[/tex].

Benny sold half of his comics and then bought 8 more he has now 11 in total how many did he begin with

Answers

Tommy originally had 6 comics.
11 - 8 = 3
3 * 2 = 6

Answer:

6

Step-by-step explanation:

If he sold half of 6 thats 3, then he bought 8 more that equals 11.

Hope that helps!

A black tailed jack rabbit hops about 7 feet in a single hop. How far can it hop on 5 seconds?

Answers

35 feet because that’s what 7x5 is
35, because 7 times 5 equals 35.

tony scored 22 and 25 points in the first two games of a basketball tournament. Tony's goal is to make the all-tournament team. so far, in all of the tournaments he's been to, all of the players who made the all-tournament team scored an average between 27 and 32 points in the tournaments. Determine the range of points tony should score in his next game to make the all-tournaments team.

Answers

Tony's current scores are 22  and 25.
Let x = Tony's next score.

To make the lower required score of 27,
(x + 22 + 25)/3 = 27
x  = 81 - 47 = 34

To make the upper required score of 32,
(x + 22 + 25)/3 = 32
x = 96 - 47 = 49

Answer:
Tony should score between 34 and 49
Tony needs to score between 34 and 49 points in the next game to make the all star tournament. To figure out the range, you need to make two equations and solve for x: (22+25+x)/3=27 and (22+25+x)/3=32

Using the Pythagorean theorem, find the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse is 10 feet long.

Answers

You have to use the formula. Its quite simple. Its a^2+b^2=c^2.

But since you are trying to find one of the legs than you would do it backwards. Since c is the hypotenuse, than youd do 10^2(which equals 100) subtracted by 8^2(which equals 64). This should give you 46. Than you would find the square root of 64 and that is your answer.

judy thought she spent $140 on pet accessories during the year. when she looked at all her receipts, she found she actually spent $112. what was the percent error between the actual amount she spent and her estimate

Answers

percent error = (incorrect amount - correct amount)/(correct amount) * 100

percent error = (140 - 112)/(112) * 100 =

= 28/112 * 100 = 0.25 * 100 = 25%
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