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trapecia [35]
3 years ago
14

12 grapes cost 90 $how many can bought in 40$

Mathematics
2 answers:
Nastasia [14]3 years ago
5 0

Answer:

5 grapes

Step-by-step explanation:

You can use a proportion.

12 grapes is to 90$ as x grapes is to 40$

12/90 = x/40

90x = 12 * 40

9x = 12 * 4

9x = 48

x = 5.33

Since you cannot buy 1/3 of a grape, you need to round down to the nearest whole number.

Answer: 5 grapes

likoan [24]3 years ago
4 0

Let x = the amount of grapes that can be bought for 0.40.


Note: By 90 I assume you mean 90 cents. The same for 40.


12/x = 0.90/0.40


0.90x = 12(0.40)


0.90x = 4.80


x = 4.80 ÷ 0.90


x = 5.33333


We can round the decimal to the ones place to get 5 grapes.




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