Question 20 Math Need Help

Question

in January, each of 70 people purchased a $500 washing machine in February 10% fewer customers purchases the same washing machine that had increased in price by 20% what was the change in sales from January to February

Choose one of the answers below and fill in the blank

A . the change in sales from January to February is $______ decrease

B. there is no change in the sales from January to February.

C. The change in sales from January to February is a $ _____ Increase

Answer 1

In January the sales revenue was

70 * 500 = $35,000

In February the number of customers decreased 10% and the price went up $20%

A 10% reduction in customers is 70 - (0.1)*(70) = 70-7 = 63

A 20% increase in price is 500 + (500) * (0.2) = 600

So the sales revenue in February is

63 * 600 = $37,800