The ratio of people who walk to school to people ride the bus to school is 1:7. If there are 13 walkers, how many students ride the bus?

91 students ride the bus

For this problem, you can set up a proportion where:

w = those who walk to school

r = those who ride the bus to school

Then include the ratio (1:7) as a fraction (1/7) and the value that is known (13).

Cross multiply (create an "x").

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step-by-step explanation: