Question

In a recent survey of favorite sodas 7 students chose coke. If these students represent 17.5% of the students surveyed, how many students were surveyed in all?

Answer 1

40

Explanation:

7 = 17.5% × Y

STEP 2 7 =

17.5

100

× Y

Multiplying both sides by 100 and dividing both sides of the equation by 17.5 we will arrive at:

STEP 3 Y = 7 ×

100

17.5

STEP 4 Y = 7 × 100 ÷ 17.5

STEP 5 Y = 40