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Artyom0805 [142]
3 years ago
11

20. There were sold 200 books and magazines. Ono book costs $15 and oach magazino costs

Mathematics
2 answers:
V125BC [204]3 years ago
6 0

Answer:

Books = 50

Magazines = 150

Step-by-step explanation:

b + m = 200

b = 200 - m..................(1)

15b + 5m = 1500

Substituting,

15(200-m) + 5m = 1500

3000 - 15m + 5m = 1500

-10m = 1500 - 3000

m = 1500 / 10 = 150

b = 200 - 150 = 50

WARRIOR [948]3 years ago
4 0
The answer is 75
how do i know?
1500 divided by 20
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