Question

Evelyn and her father collects rocks Evelyn’s father has 5 more rocks than four times Evelyn’s rock. How many rocks does Evelyn name when her father has 49 rocks?

Answer 1

Evelyn has 11 rocks.

Explanation:

I first made an equation for the father's rocks.

5 + 4x = 49

X is Evelyn's rocks. We subtract the 5 from each side to get,

4x = 44, dividing each side by 4, we get X = 11.

We can double-check our answer by multiplying 11 by 4 and adding 5 to it. We get 49 doing this, proving our answer.