442,456 views
4 votes
4 votes
7th grade math help me pleaseee

7th grade math help me pleaseee-example-1
User Amiekuser
by
2.6k points

2 Answers

25 votes
25 votes

Answer:

24 stamps

Explanation:

13.66 - 4.3 = 0.39s

9.36 = 0.39s

Divide both sides by 0.39

24 = s

Or turn it:

s = 24

User Rajkeshwar Prasad
by
2.6k points
19 votes
19 votes

Answer:

He bought 26 stamps

Explanation:

13.66=.39x+4.30

9.36=.39x

26=x

User Sfjac
by
2.8k points