Question

Consider the numbers 0, 10, 20, 30, and 40. Multiply each by 4 and compare the result to 60 to determine into which of the following intervals the answer to the question "What number can you multiply by 4 and then add 8 to the product to get 60?"Select the interval into which the answer should fall.
a. 0 to 10
b. 10 to 20
c. 20 to 30
d. 30 to 40

Answer 1

Answer:b

Step-by-step explanation:

While this problem seems confusing, the answer is rather simple.

All you have to do is the reverse of what they are asking.

This is, substract 8 to 60 and then divide by 4:

$60-8 = 52\\\frac{52}{4} = 13$

So the interval which 13 falls into is 10 to 20 and the answer is b.