Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Question

Write and solve an algebraic equation for the situation.
Eight and one-half years ago, Steven was 7 years old. How old is he now?

Answer 1

Can someone answer this as well?
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Joseph had 7 1/4 ounces of candy to share with his friends. He gave them
2 4/5 ounces of candy when they came over to play video games. How many ounces of candy does Joseph have left?

Answer 2

First questionš

x = present age

Eight and one-half years ago, Steven was 7 years old means:

x - 8.5 = 7

x = 7 + 8.5 = 15.5

Now he is 15.5 years old.

Second question

x = ounces left

x = 7 1/4 - 2 4/5 = 7 + 1/ 4 - ( 2 + 4 / 5 ) =

7 + 5 • 1 / 5 • 4 - ( 2 + 4 • 4 / 4 • 5 ) =

7 + 5 / 20 - ( 2 + 16 / 20 ) =

140 / 20 + 5 / 20 - ( 40 / 20 + 16 / 20 ) =

145 / 20 - 56 / 20 = 89 / 20

You can write results as:

x = 80 / 20 + 9 / 20 = 4 9/20