Suppose your average, after taking 4 quizzes, is 73(out of 100). what must your average be on the next 5 quizzes to increase your average to 88 out of 100?

x = average of next 5 quizzes

4 * 73 = first 4 quizzes

There will be a total of 4 +5 = 9 quizzes

Average of all quizzes = 88 = (4*73+5x)/9

9*88 = 9*(292 +5x)/9

792 = 292 + 5x

500 = 5x

X = 500/5 = 100

 Next 5 quizzes need to average 100

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation: