A student answered 18 problems correct and earned a
grade of on a math test. How many total
problems are on the math test?
6. 21

Ask by Daniel Montgomery. in the United States

Nov 18,2024

Question

A student answered 18 problems correct and earned a
grade of on a math test. How many total
problems are on the math test?
6. 21

Ask by Daniel Montgomery. in the United States

Nov 18,2024

UpStudy AI · Accepted Answer

To find the total number of problems on the math test, we can use the information given about the student's score.

The student answered 18 problems correctly and earned a grade of 90%. This means that 90% of the total number of problems equals 18.

Let $$ x $$ be the total number of problems on the test. We can set up the equation:

$$
0.9x = 18
$$

To solve for $$ x $$, we divide both sides by 0.9:

$$
x = \frac{18}{0.9}
$$

Calculating the right side:

$$
x = 20
$$

Thus, the total number of problems on the math test is $$ \boxed{20} $$.
The total number of problems is 20.