Eli needs to save $235. to earn money, he plans to mow lawns and charge $21 for each, write two estimates eli could use to determine the number of lawns he needs to mow. decide which estimate you think is the better one for eli to use

Answers

Answer 1
To determine the number of lawns he needs to mow to earn the desired money, Eli could perform a simple addition problem, adding $21 per lawn until he reached his goal number. This equation would be: 21 + 21 = 42 + 21 = 63 + 21 = 84 + 21 = 105 + 21 = 126 + 21 = 147 + 21 = 168 + 21 = 189 + 21 = 210 + 21 = 231 + 21 = 252. However, a better way would be to divide the desired amount by the cost per lawn and round to the nearest whole number. That equation is 235 / 21 = 12 lawns.

Related Questions

If the following fraction is reduced, what will be the exponent on the q? -5p^5q^4/ 8p^2q^2

Answers

Alright, so for dividing exponents, we simply subtract the denominator from the numerator. In this case, we have -5/8 on the side for the numbers, subtract 2 from 5 to get p³ and 2 from 4 to get q² as our final q result

I did this question already. The answer is 2

Farmer jinzhou has 300 feet of fencing to enclose two identical rectangular pens that share a common fence. what are the dimensions of the pens that make their areas as large as possible? if x represents the length of the enclosure, what is the domain in the context of this situation?

Answers

Given that the two indentical rectangular pens share a common fencon, then the perimeter to be fenced are three sides (including the common fence) with the same length and two sides of the same length.

Let the length of one of the three sides of the same length be x, then the length of one of the two sides of the same length is [tex] \frac{1}{2} (300-3x) [/tex].

The entire stucture is a stack of two identical rectangles which is also rectangular in shape.

The area of a rectangle is given by length times width. i.e.

[tex]Area= \frac{1}{2} x(300-3x)=150x- \frac{3}{2} x^2[/tex]

For maximum area, the derivative of the area with respect to x equals zero.

[tex] \frac{d}{dx} (Area)=150-3x=0 \\ \\ \Rightarrow3x=150 \\ \\ \Rightarrow x= \frac{150}{3} =50[/tex]

The length of one of the two sides of equal length is [tex]\frac{1}{2} (300-3(50))=\frac{1}{2}(150)=75[/tex]

Therefore, the dimensions of each pen that will make their areas as large as possible is 50 ft by 37.5 ft

Find an equation for this inverse.

f(x) = 5x + 1

Please help! I have a test tomorrow & I have absolutely no idea on his to do this, thanks! :)

Answers

The easiest way to find the inverse of a function is to swap the x and y, meaning:

We have the function [tex]f(x)=5x+1[/tex]. Let's call our outputs "y", so we have [tex]y=5x+1[/tex]. To find the inverse, we're going to change the x and the y's position in the equation, so we have [tex]x=5y+1[/tex]. Then all we need to do is solve for y:
[tex]x=5y+1[/tex]
[tex]x-1=5y[/tex]
[tex]\frac{x}{5}-\frac{1}{5}=y[/tex]
[tex]f^{-1}(x)=y=\frac{x}{5}-\frac{1}{5}[/tex]
Don you mean find its inverse function??
If so, then you can determine if a function has an inverse by passing the "horizontal line test."
This function does because it has a slope not equal to zero. Inverses of horizontal lines have vertical lines in them, which are not by definition functions.
So now, simply replace "f(x)" with "y", then switch the x and y, and solve for y:
y = 5x + 1
x = 5y + 1
-1 -1
5y = x - 1
÷5 ÷5
y = (x-1)/5

Flint purchased a boat for $10,815. He made a down payment of $1,175. He applied for a six-year installment loan with an interest rate of 9.4% in the amount of $9,640. What is the total cost of the boat after six years?

$12,649.68
$13,824.68
$11,831.61
$10,546.16

Answers

Final answer:

The total cost of the boat after six years is $6,616.44.

Explanation:

To find the total cost of the boat after six years, we need to calculate the interest paid on the loan over that period of time.

The loan amount is $9,640 with an interest rate of 9.4% per year.

Since the loan is for six years, we multiply the loan amount by the interest rate and the number of years: $9,640 × 0.094 × 6 = $5,441.44.

Adding the down payment of $1,175 to the interest paid on the loan, we get the total cost of the boat after six years: $5,441.44 + $1,175 = $6,616.44.

Simplify 5 to the second power

Answers

5 to the second power is 5*5 which would be 25 so then youre left with 25+20, giving you 45 as your answer 

For which value would the graph y= x^4 -25 be below the x axis?

Answers

1 because 1^4-25=-24 which is negative(so below the x-axis)

a line segment has endpoints (4,7) and (1,11).what is the length of the segment

Answers

1st use the distance formula 

x1 for 4,          y1 for 7,                 x2 for 1,               y2 for 11

2. put them together.  D= Square root (1-4)^2 + (11-7)^2
3.                                  D=  square root            (-3)^2 +(4)^2
4.                                  D=   Square root                  9+16
5.                                                             D= square root 25
6.                                  D= -5

help please
Find the volume of a pyramid with a square base, where the perimeter of the base is 5.5 m and the height of the pyramid is 2.9 m. Round your answer to the nearest tenth of a cubic meter.

Answers

using V = ⅓[base area×height]
V= ⅓[ (5.5÷4)² × 2.6]
v= ⅓[ 4.92]
v = 1.6m³

MATH HELP PLEASE!!!!

Answers

1. any number times2 then subtracted by the same number can't = 0 , so it is Null Set

2. 2^2 = 4 +12 = 16, 8*2 = 16, answer is 2


An equation that contains only the operation of addition is called

Answers

Answer:  an "addition equation" .
__________________________________________

James is writing a coordinate proof involving a parallelogram. Knowing that the opposite sides of a parallelogram are congruent, James places his parallelogram on the coordinate plane such that one vertex is at the origin and one side lies along the x-axis. What coordinates should he assign to the fourth vertex of the parallelogram? (2a, a) (2a, a2) (a2, 0) (2a, 2a) 

Answers

(2a,a)
is ur answer
hope this helps

Answer:-(2a,a) coordinates he should assign to the fourth vertex of the parallelogram.


Explanation:-

Let ABCD be the vertices of the given parallelogram such that A=(0.,0) , B=(a,0) , C(x,y) and D=(a,a)

Construct the diagonals AC and BD of parallelogram ABCD .

We know that diagonals of a parallelogram bisect each other.

⇒ mid point of AC= mid point of BD...(1)

Mid point of BD[tex]=(\frac{a+a}{2},\frac{0+a}{2})=(\frac{2a}{2},\frac{a}{2})=(a,\frac{a}{2})[/tex]........(2)

Mid point of AC[tex]=(\frac{0+x}{2},\frac{0+y}{2})=(\frac{x}{2},\frac{y}{2})[/tex]......(3)

Substitute (2) and (3) in (1), we get

[tex](\frac{x}{2},\frac{y}{2})=(a,\frac{a}{2})\\\Rightarrow\frac{x}{2}=a;\frac{y}{2}=\frac{a}{2}[/tex]

 [tex]\Rightarrow\ x=2a\ and\ y=a[/tex]

⇒C=(2a,a)

⇒ (2a,a) coordinates he should assign to the fourth vertex of the parallelogram.



A recipe uses 3 cups of water, 2 cups of rice, and 1 cup of black beans. What is the ratio of cups of rice to cups of water?

Answers

The answer would be [tex] \frac{3}{2} [/tex] There are three cups of water to 2 cups of rice.

Final answer:

The ratio of cups of rice to cups of water in the recipe is 2 to 3, which can also be written as 2/3.

Explanation:

The question asks us to find the ratio of cups of rice to cups of water. The recipe provided uses 2 cups of rice and 3 cups of water. To find this ratio, we simply compare the number of cups of rice to the number of cups of water and write it as a fraction or a division problem.

In this case, the ratio is:

2 cups of rice : 3 cups of water

Which we can also write as 2/3 or say that for every 2 cups of rice, there are 3 cups of water.

a family is canoeing (with the current). Their speed relative to the banks of the river averages 2.75mi/h. During the return trip, they paddle upstream (against the current), averaging 1.5 mi/h relative to the riverbank. Write and solve a system of equations to find the family’s paddling speed in still water.

Answers

Answer:

it's 2.125

Step-by-step explanation:

The required speed of family's paddling speed in still water is 2.125 mi/h.

Given that,
A family is canoeing (with the current). Their speed relative to the banks of the river averages 2.75mi/h. During the return trip, they paddle upstream (against the current), averaging 1.5 mi/h relatives to the riverbank.

What is speed?

Speed is defined as when an object is in motion, the distance covered by that object per unit of time is called speed.

Here,
Let the speed of the family on still water be x,
Speed of the current be y
According to the question,
upstream speed,
1.5 = x - y  - - - - - (1)
Downstream speed,
2.75 = x + y - - - - - (1)

Solving equations 1 and 2 givens,
2x = 4.25
x = 2.125 mi / h

Thus, the required speed of the family paddling speed in still water is 2.125 mi/h.

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What is the value of the expression? (−3)3+6312

Answers

-3(3)+6312
-9+6312
6303

The answer is 6303. Hope this helps!

True or False:

The domain of the composite function (f◦g)(x) is the same as the domain of g(x).

Answers

Final answer:

The statement is false. The domain of the composite function (f◦g)(x) is not always the same as the domain of g(x). It includes only the values of x for which both g(x) and f(g(x)) are defined.

Explanation:

The statement is False. The domain of the composite function (f◦g)(x) is not always the same as the domain of g(x). In a composite function (f◦g)(x), the domain includes only the values of x for which both g(x) and f(g(x)) are defined.

For example, if g(x) = sqrt(x) and f(x) = 1/x, the domain of g(x) would be all real numbers x ≥ 0, but the domain of the composite function (f◦g)(x) = 1/sqrt(x) would be x > 0, because 1/sqrt(x) isn't defined for x = 0.

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If John has 20 square ft of carpet, that’s enough to carpet a room that’s 6’ by 3’.

Question 2 options:
True
False

Answers

True

6 x 3 = 18 square feet. which is the surface area of the room.

so john will have 2 square feet to spare


Question 2(Multiple Choice Worth 15 points) (04.03 LC) Which of the following options results in a graph that shows exponential growth?
f(x) = 0.4(0.2)x
f(x) = 4(0.98)x
f(x) = 0.7(5)x
f(x) = 5(4)−x

Answers

The answer is:  [C]:  " f(x) = 0.7(5)ˣ " .

_________________________________________________________

 Explanation:

_________________________________________________________

From all the answer choices given; 

Answer choice:  [C]:  "  f(x) = 0.7 (5)ˣ " ;  is the answer choice with a "positive number"; {which is then multiplied by: [ a "positive whole number" or a "positive number greater than "1"; that is raised to a "positive variable"] .

________________________________________________

How I solved this:  Further Explanation:

________________________________________________

A positive number multiplied by a {"number less than 1; raised to "x"] would result in increasingly lower values as "x" increases. Same with "raised to "negative x" {refer to "Answer choice [D]" }.

Answer:

The answer is:  [C]:   f(x) = 0.7(5)ˣ

Step-by-step explanation:

In this particular arithmetic sequence, a7 = 50 and a15 = 114. What is the value of a21? Hint: an = a1 + d(n − 1), where a1 is the first term and d is the common difference.

Answers

If you would like a list of the steps/formula, message me and I'll send it to you as it's too long to post here. The answer to your question would be a21 = 162.

Hope this helped, and if it did I'd appreciate if you marked me as brainliest as I need it to get to a higher rank. If you need any more help, feel free to add me and/or message me :)

What value of k makes the statement true? xky4(2x3 + 7x2y4) = 2x4y4 + 7x3y8 k =

Answers

xky4 (2x3 + 7x2y4) = 2x4y4 + 7x3y8Distribute xy4 to the parentheses such as:k (2x4y4 + 7x3y8) = 2x4y4 + 7x3y8Divide both sides by 2x4y4 + 7x3y8 such as shown below:k = (2x4y4 + 7x3y8) / (2x4y4 + 7x3y8)k=1
The answer is "1".

Answer: Answer is 1

Step-by-step explanation:

edge

Plz halp. I just need #20, and please write out the equation so I know how to do it for future problems, thanks!

Answers

The number you need is 16 all you have to do is work out the problem and try to understand it they are trying to confuse you don't need an equation.
Hope this help!
Have a Great day mate !!

Explain how to determine if these two are the same function expressed in different ways

Answers

Answer:

Sample Answer:

When a linear function is expressed in different forms, its slope and y-intercept remain the same. The slope from the equation is -1, and the y-intercept from the equation is 3. The slope from the table is -1, and the y-intercept from the table is −3. These are not the same functions.

Step-by-step explanation:

Answer:

When a linear function is expressed in different forms, its slope and y-intercept remain the same. The slope from the equation is -1, and the y-intercept from the equation is 3. The slope from the table is -1, and the y-intercept from the table is −3. These are not the same functions.

Step-by-step explanation:

Please help and show work thank you.

1. How are the angles of an equilateral triangle related?

2. How does the length of the hypotenuse in a right triangle compare to the lengths of the legs?

Answers

An equilateral triangles has 3 equal sides and 3 equal angles.
All the angles of an equilateral triangle have a measure of 60 degrees.

Using the Pythagorean theorem, the length of the hypotenuse squared is the length of one leg squared plus the length of another leg squared.

Here's the equation for the Pythagorean theorem.
Let c be the length of the hypotenuse.
Let a and b be the length of the two legs.
a^2 + b^2 = c^2 

Have an awesome day! :)
1.
A triangle has 3 angles. The sum of the measures of the angles in a triangle is always 180 degrees. An equilateral triangle has three angles with the same measure. Since all angles have the same measure and the sum of their measures equals 180 degrees, each angle measures 180/3 = 60 degrees.
Answer: All angles of an equilateral triangle have the same measure, and the measure is 60 degrees.

2.
The Pythagoras theorem tells us that for every right triangle, if the legs have lengths a and b, and the hypotenuse has measure c, then a^2 + b^2 = c. The square of the length of the hypotenuse equals the sum of the squares of the lengths of the legs.

Which ordered pair is a solution to this equation?

2x+6y=10

A (12, 2)
B (4, 1)
C (3, 1)
D (2, 1)

Answers

The answer is D because if you plug in the ordered pair in their correct places the equation becomes 4+6=10.
The correct answer would be answer choice d (2,1)

Please help with these questions thank you.

Answers

1. 2 and 7 are equal

2. angle 1 = 68 degrees

3. 1st answer


Find the volume of the pyramid. Round your answer to the nearest hundredth.
A. 146.61
B. 154.87
C. 164.61
D. 186.61

Answers

I would say b hope this help ☺

In how many ways can 12 people be divided into three groups of 4 for an

Answers

Well, 12 divided by 3 is equal to 4. Therefore, you can split 12 people into 3 groups of 4

State 7m to 250cm as a ratio in its lowest terms

Answers

First you have to convert the numbers to the same units.  Either m to cm or cm to m.
To go from meters to centimeters you multiply the number by 100.
7*100=700cm
Now you have 700cm/250cm.  This needs simplified
I divided each number by 50 to get 14 and 5
14cm/5cm or 14cm:5cm

Final answer:

To express the ratio of 7 meters to 250 centimeters in its lowest terms, convert both to the same unit and simplify. 7 meters is 700 centimeters, leading to an initial ratio of 700:250, which simplifies to a final ratio of 14:5.

Explanation:

To state 7m to 250cm as a ratio in its lowest terms, we need to convert them to the same unit. One meter is equivalent to 100 centimeters, so 7 meters is the same as 700 centimeters.

Now we can write the ratio as 700 cm : 250 cm, which can be simplified by dividing both terms by 250 cm (the greatest common divisor of both numbers).

The simplified ratio is 700÷ 250 : 250÷ 250, which simplifies to 7 : 2.5. Since we want the ratio in its lowest terms with whole numbers, we can multiply both terms by 2 to eliminate the decimal, resulting in a final ratio of 14 : 5.

You board a Ferris wheel at ground level and travel to the very top, when it stops to allow more riders to get on.

How many degrees has the Ferris wheel rotated?

Answers

Answer:

answer is 180 degrees

Step-by-step explanation:


180 degrees has the Ferris wheel rotated

What is rotation?

Rotation is the circular movement of an object around an axis of rotation.

Given:

There is ferries wheel when we board on ferris wheel it will be considered as 0 degree.

but when the ferris wheel stop to get more riders on at that time we are vey top.

So, we have covered half of the complete angle i.e., 180 degree

Hence, the ferris wheel cover 180 degrees.

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m ∠ A = 100 - x
m ∠ B = 80 + x
m ∠ C = 110 - 3x
m ∠ D = 75 + 2x
Quadrilateral ABCD is a parallelogram if both pairs of opposite angles are equal. Prove that Quadrilateral ABCD is a parallelogram by finding the value of x.
A) x = 5
B) x = 7
C) x = 10
D) x = 15/2

Answers

<A must be congruent to <C

100 - x = 110 - 3x

100 + 2x = 110

2x = 10

x = 5

m<A = 100 - x = 100 - 5 = 95

m<C = 110 - 3x = 110 - 3 * 5 = 110 - 15 = 95

Opposite angles A and C are congruent.
Now we need to check opposite angles B and D.

m<B = 80 + x = 80 - 5 = 75

m<D = 75 + 2x = 75 + 2 * 5 = 75 + 10 = 85

Opposite angles B and D are also congruent.

Answer: x = 5

What is the first term of the geometric sequence presented in the table below?


n 5 7
an 176 704


Hint: an = a1(r)n − 1, where a1 is the first term and r is the common ratio.

Answers

176 = a1 * r^4
704 = a1 * r^6

dividing:-

r^2 = 706/174 =  4   so r = +/- 2

a1 =  176 / 2^4 =  176/16 = 11

So 11 is the first term 
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