gregplan10022 gregplan10022

11-02-2017
Mathematics

contestada

In a jar of coins, the ratio of nickels to dimes is 5:7. If the jar contains 350 dimes, how many nickels are there? A) 200 B) 225 C) 250 D) 500

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texaschic101 texaschic101

11-02-2017

5/7 = n / 350....5 nickels to 7 dimes = n nickels to 350 dimes
this is a proportion so we cross multiply
(7)(n) = (5)(350)
7n = 1750
n = 1750/7
n = 250....so there are 250 nickels

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Аноним Аноним

11-02-2017

The ratio is 5:7
At the moment it is ? : 350
To work this out so 350 / 7 = 50
50 x 5 = 250.
There are 250 nickels therefore your answer is C. 250.

Hope This Helps You!
Good Luck Studying :)

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