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andrew11 [14]
3 years ago
5

Richard and Tom each mow lawns in the summer to earn money. The lawns they mow are all approximately the same size. Richard’s ea

rnings are shown in the graph and Tom’s earnings are shown in the table.
Tom’s Earnings

Number of Lawns Earnings
3 $22.50
8 $60
12 $90
15 $112.50

How much money, in dollars, does each person earn per lawn mowed?

Richard earns $___per lawn.

Tom earns $___per lawn.

Mathematics
1 answer:
Ratling [72]3 years ago
7 0

Answer$7.50

Step-by-step explanation:

Divide each amount by the number of lawns

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The length of a rectangle is 3 m longer then it’s width the area of the rectangle is 154 m^2 what is the width of the rectangle
Alenkasestr [34]
The width is 11.

You can get this by setting up an equation that says:

x (x - 3) = 154

Then distribute and use the quadratic equation to solve. 
7 0
3 years ago
-112=16e<br> Solve for e
snow_tiger [21]

Answer: -7 = e

Step-by-step explanation: To solve this equation for <em>e</em>, we need to get <em>e</em> by itself on the right side of the equation. Since <em>e</em> is multiplied by 16, in order to get <em>e</em> by itself, we need to divide by 16 on the right side of the equation. If we divide by 16 on the right side of the equation, we must also divide by 16 on the left side of the equation.

On the right side of the equation the 16's cancel and we have <em>e</em>. On the right side of the equation -112 divided by 16 is -7. Remember that a negative divided by a positive is a negative.

So we have -7 = e which is the solution to our equation.

To check our solution, we can plug -7 in for <em>e</em> in the original equation. So we have -112 = 16 (-7) or -112 = -112 which is a true statement so our answer checks.

5 0
3 years ago
Reese is selling lemonade at the parade. He gets to keep 10% of the money he collects. A large lemonade is $7.00 and a small lem
jeka94

Answer:

We conclude that the simplified expression is:

0.10\left(7l\:+\:2s\right)=0.7l+0.2s

Step-by-step explanation:

Given the expression

0.10\left(7l\:+\:2s\right)

Apply the distributive law:   a(b+c) = ab+ac

a = 0.1, b = 7l, c = 2s

0.10\left(7l\:+\:2s\right)=0.1\cdot \:7l+0.1\cdot \:2s

                       =7\cdot \:0.1l+2\cdot \:0.1s

                        =0.7l+0.2s

Therefore, we conclude that the simplified expression is:

0.10\left(7l\:+\:2s\right)=0.7l+0.2s

4 0
3 years ago
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Vitek1552 [10]

Answer:

Step-by-step explanation:

add the z's and make both sides of the equation equal

4 0
3 years ago
Read 2 more answers
Suppose that a sample mean is .29 with a lower bound of a confidence interval of .24. What is the upper bound of the confidence
Ganezh [65]

Answer:

The upper bound of the confidence interval is 0.34

Step-by-step explanation:

Here in this question, we want to calculate the upper bound of the confidence interval.

We start by calculating the margin of error.

Mathematically, the margin of error = 0.29 -0.24 = 0.05

So to get the upper bound of the confidence interval, we simply add this margin of error to the mean

That would be 0.05 + 0.29 = 0.34

3 0
3 years ago
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