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20. There were sold 200 books and magazines. Ono book costs $15 and oach magazino costs
$5: they spent $1500 in total. How many books and how many magazines wero sold?

Respuesta :

the answer is 75
how do i know?
1500 divided by 20
gilbertazavedo72

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

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