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slavikrds [6]
3 years ago
12

Sally drives 66 miles in 3 hours and Molly drives 72 miles in 4 hours. What is the difference between their average speed, in mi

les per hour?
A.4
B.6
C.18
D.22
I will mark brainiest
Mathematics
1 answer:
Scrat [10]3 years ago
5 0

Answer: A


Step-by-step explanation:

Sally: 66/3=22

Molly: 72/4=18

22-18=4


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7 more than 5 times a number is 122
Luba_88 [7]

Answer:

The number is 23.

Step-by-step explanation:

5n + 7 = 122               Subtract 7 on both sides

     5n = 115                 Isolate the variable by dividing 5 on both sides

        n = 23

<h3><u><em>Hope this helps!!! </em></u></h3><h3><u><em>Please mark this as brainliest!!! </em></u></h3><h3><u><em>Thank You!!! </em></u></h3><h3><u><em>:)</em></u></h3>
4 0
3 years ago
What is the ratio of the corresponding side lengths?<br> 4:9<br> 4:2<br> 26:26<br> 4.5:2
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Answer:

4:2

Step-by-step explanation:

8 0
3 years ago
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The function f(x) is given by the set of ordered pairs.
My name is Ann [436]
Answer: f(0) = 6.

Explanation:

Ther ordered pairs are: (x,y) or (x, f(x) )

So, (1,0) means that f(1) = 0 which denies the fourth choice.

(-10,2) means that f(-10) = 2 which denies the first choice

(0,6) means that f(0) = 6, which is the third choice. So, that is the true equation.
4 0
3 years ago
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Solve each quadratic equation. Show your work.
umka2103 [35]
14. 2x-1 = 0, x+7=0
x = 1/2, x = -7

15. x^2 + 3x - 10 = 0
(x + 5)(x - 2) = 0 
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16. x^2 - 25 = 0
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5 0
3 years ago
Renaldo will write 3/20 as a decimal. Which of the following methods should he use?
makvit [3.9K]

ANSWER

1. Multiply the fraction by 5/5 to get a denominator of 100 and then write the numerator as hundredths using a decimal point.

EXPLANATION

Renaldo wants to write

\frac{3}{20}

as a decimal.

He needs a denominator of 100, so he can multiply by

\frac{5}{5}

to obtain:

\frac{3}{20}  =  \frac{3 \times 5}{20 \times 5}

This will be

=  \frac{15}{100}

He can now obtain the decimal equivalent as

= 0.15

The correct choice is option 1.

3 0
3 years ago
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