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kondor19780726 [428]
3 years ago
7

I have a math problem it says: He used 160 batteries in 40 calculators. how many batteries are required for 225 calculators? Can

I have a little help please?

Mathematics
1 answer:
iogann1982 [59]3 years ago
7 0
You can set up an equality:

40/160 = 225/x

Cross multiply:

40x = 160(225)

Evaluate: 

40x = 36000

Isolate x:

x = 900.

So, 900 batteries are required for 225 calculators. 

Hope this helped!! xx
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