briannacortes160 briannacortes160

23-03-2020
Mathematics

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the ratio of the number of adults to the number of children in a bus is 7:5. If there is 15 children in the bus, how many adults are in the bus?

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MikeMart77 MikeMart77

23-03-2020

Answer:

There are 21 adults in the bus.

Step-by-step explanation:

The easiest way is to express the ratio as a fraction and cross-multiply:

[tex]\frac{7}{5} = \frac{x}{15} \\\\5x=7(15)\\x=7(3)\\x=21[/tex]

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