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Nataly [62]
3 years ago
9

When Carrie mows a lawn, she charges a flat fee of $5 plus an hourly rate, r. Carrie worked 2 hours at her last job. The equatio

n 2r+5=20 represents, in dollars, what Carrie charged. What is Carrie’s hourly rate?
Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

$7.50

Step-by-step explanation:

You use inverse operations to evaluate the equation. You subtract 5 from 20, which is 15. Then you divide 15 by 2, which is 7.5.

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Solve the equation.check your solution,if possible. 1/2s=4s-21
Sladkaya [172]
S=6

Solution
6/2=3
(6*4)=24
24-21=3
5 0
2 years ago
Write an expression that represents the area of only the red shaded region in terms of x
julsineya [31]

Answer:

(9 × 3x+7) - (5 × x+2)

Step-by-step explanation:

Red area

9 × 3x + 7

white area

5 × x+2

7 0
2 years ago
14129 Marks
11Alexandr11 [23.1K]

Answer:

1. The probability that the T-shirt will be grey :-

=》

\frac{2}{20}

=》

\frac{1}{10}

=》

0.1

hence, the probability of grey t-shirt is 0.1

2. The probability that the T-shirt will not be red :-

=》

1 -  \frac{4}{20}

=》

1 -  \frac{2}{10}

=》

1 - 0.2

=》

0.8

The probability that the T-shirt will not be red is

0.8

3. He takes one of his blue T-shirts at random.

What is the probability that the T-shirt is light blue

total blue t-shirts = 5

so, the probability of choosing light blue t-shirt is

=》

\frac{1}{5}

=》

\frac{2}{10}

=》

0.2

hence, the probability of choosing light blue t-shirt is 0.2

3 0
3 years ago
Simplify each sum or difference. State any restrictions on the variables.
maria [59]

Simplification of the equation \frac{x}{3x+9}- \frac{8}{x^{2}  +3x} is equal to (x² -24)/ 3x(x+3), restriction on the variables are x ≠0 , x≠ -3.

As given in the question,

Given equation \frac{x}{3x+9}- \frac{8}{x^{2}  +3x}

Simplify the given equation,

x/ 3(x+3) - 8/x(x+3)

= (x² - 24) / 3x(x+3)

Restriction on the variables for the above equation is,

x≠ 0 , x≠ -3

Therefore, simplification of the equation \frac{x}{3x+9}- \frac{8}{x^{2}  +3x} is equal to (x² -24)/ 3x(x+3), restriction on the variables are x ≠0 , x≠ -3.

Learn more about variables here

brainly.com/question/17344045

#SPJ4

8 0
9 months ago
Hurry please I really need this .
MA_775_DIABLO [31]

Answer:

{2,3,4,5}

Step-by-step explanation:

The given set is in set-builders notation form.

IT says that x such that x belongs to integers and it is greater than or equal to 2 and less than on equal to 5.

So, The set will be written as:

=> {2,3,4,5}

3 0
2 years ago
Read 2 more answers
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