Question

Martin was given 10 math problems, and he has answered 7 of them. What percent of the problems does Martin have left to do? A) 3% B) 7% C) 30% D) 70%I NEED THE ANSWER LIKE RIGHT NOW!!!

Answer 1

The answer to your question is the letter C.

Explanation:

Data

Number of problems = 10

Problems answered = 7

Percent of problems do not answer = ?

Process

1.- Calculate the percent of problems answered

10 problems -------------------- 100 %

7 problems -------------------- x

x = (7 x 100) / 10

x = 700 / 10

x = 70 %

2.- Calculate the percent of problems left to do.

Problems left = 100 - 70

= 30%