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The average number of cars on a highway increased by 6% this year to 795 cars per day. What was the average number of cars on the highway per day a year ago?

Answers

A. 716 cars per day
B. 750 cars per day
C. 824 cars per day
D. 875 cars per day

User Ivan Kush
by
8.1k points

1 Answer

2 votes

Answer:

Option B. 750 cars per day

Explanation:

Let

x -----> the average number of cars on the highway per day a year ago


100\%+6\%=106\%=106/100=1.06

we know that

The average number of cars on the highway per day a year ago multiplied by the factor 1.06 must be equal to the average number of cars this year

so

The linear equation that represent this situation is


1.06x=795

Solve for x


x=795/1.06\\x=750\ cars\ per\ day

User Sigurd V
by
8.1k points
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