Question

Evelyn owns a small business selling ice cream. She knows that in the last week 137 customers paid cash, 2 customers used a debit card, and 9 customers used a credit card.

Based on these results, express the probability that the next customer will pay with something other than a credit card as a percent to the nearest whole number.

Answer 1

About 91 customers would be expected to pay with a credit card.

Explanation:

Well you have ro set up a ratio of 16/70 = x/400

This way the amount of people that used a credit card out of all of the people that came and you can figure out the amount of people that will use a credit card out of the 400 people that are expected tho come. You multiply like a butterfly. 70 times x and 400 by 16. Then you will get 6,400=70x divide both sides by 70 and get 91.42=x so if ypu round, 91 people are expected to pay using a credit card out of the 400 customers that are expected to come.