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Sindrei [870]
3 years ago
10

A food service in the mall prepares free samples of chicken to give out during dinner time. One hour later, the food service has

given out 4 fewer than 70% of the total number of samples. How many samples did the food service prepare if they gave out 80 samples in the first hour?
Mathematics
1 answer:
jeka943 years ago
5 0

The food service gave out 80 samples, which is 4 fewer than 70% of the total number of samples they prepared. Lets make x the total number of samples they prepared.

So lets write it as an equation

80 = (70% of x) -4

70% converts to a decimal by moving the decimal point 2 spaces up, so it is 0.7

80 = 0.7x-4

Add 4 to both sides of the equation

84 = 0.7x

Divide both sides by 0.7 to isolate the x

x = 120

The food service prepared 120 samples.

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