Question

Danny took a math test and got 35 correct and 10 incorrect answers. What was the percentage of the correct answers? (Round your answer the the nearest hundredth)

A student earned a grade of 80% on a math test that had20 problems. How many problems on this test did the student answer correctly? (round to the nearest whole number)

Answer 1

1. 78%

2. 16

Explanation:

35 + 10 = 45

Danny got 35/45 answers correct.

Divide 35 into 45

35 ÷ 45 = .777777778

.777777778 ≈ .78

To convert a decimal to a percentage, move the decimal point two spaces behind.

.78 = 78%

Danny got 78% of the answers correct.

80% = .8 =
`(8)/(10)`

Multiply
`(8)/(10)` by 20 to get the answer

`(8)/(10)` ×
`(20)/(1)` =
`(160)/(10)`

Simplify

`(160)/(10)` = 16