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scoundrel [369]
2 years ago
11

If 3 boys can build 12 model airplanes in a certain length of time, how many planes can 15 boys make in the same length of time

if they work at the same speed?
Mathematics
1 answer:
zubka84 [21]2 years ago
4 0
It would be five times as many planes so 12*5=60 planes
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Answer:

Cost of pencil is $0.35 and cost of pen is 0.75

Step-by-step explanation:

The cost of one pencil and one pen is required.

The cost of a pencil is $0.35 and a pen is $0.75.

The number of pens is 12.

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Let the cost of one pencil be  

A pen costs $0.40 dollar more than pen.

So, cost of a pen is  

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2 years ago
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Step-by-step explanation:

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Your answer is 0.45 I think
7 0
3 years ago
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