Suppose you receive an allowance of $107 and your friend receives an allowance of $83 at the beginning of the month. If you spend $8 a day and your friend spends $4 a day, after how many days will you and your friend have the same amount of money?

Question

Mathematics

Lina Owens

11 January, 05:41

Suppose you receive an allowance of $107 and your friend receives an allowance of $83 at the beginning of the month. If you spend $8 a day and your friend spends $4 a day, after how many days will you and your friend have the same amount of money?

+4

Answers (1)

Know the Answer?

Jaylon Goodman · Answer 1

6 days

Y = 107-8x

Y=83-4x

You can use substitution

83-4X = 107-8x

Bring 8X

Over to the left

83 + 4x=107

Subtract 83

4x = 24

X=6

Or put in calculator and go 2nd graph you see table and on 6 day they both have $59