Deck 2: Ratios, Percents, Simple Equations, and Ratio-Proportion

Question 1

In order to pass a unit test, a student must answer 80% or more of the questions correctly. If a unit test has 75 questions, what is the largest number of questions that the student could answer incorrectly, but still pass the unit test?

Answer 1

At least 80% of 75 questions must be answered correctly. At least 60 questions must be answered correctly. The largest number of questions that the student could answer incorrectly, but still pass the test, is 15 questions.

Question 2

Change the following ratio to a decimal. Round to the hundredths place.
1.4 : 2.8

Answer 2

1.4 : 2.8 = = 0.5

Question 3

Given:
Complete row 1 in the table above.

Answer 3

, 5% , 1:20

Question 4

Change the following ratio to a fraction. Reduce to lowest terms.
3 : 6

Question 5

Given:
Complete row 2 in the table above.

Question 6

Solve the following problem for X.

Question 7

Change the following ratio to a percent. Round to the hundredths place.
3 : 6

Question 8

In order to pass a chapter test, a student must answer 80% or more of the questions correctly. If a chapter test has 25 questions, what is the smallest number of questions that the student must answer correctly in order to pass the test?

Question 9

Change the following ratio to a fraction. Reduce to the lowest term.
5 : 35

Question 10

A client is to receive 1,800 mL of fluid during a 24-hour period. The client is to receive of the fluid between 7 AM and 10 PM. Calculate how many mL the client will drink during that time.

Question 11

Given:
Complete row 4 in the table above.

Question 12

Given:
Complete row 3 in the table above.

Question 13

Solve for X. Round answers to two decimal places.

Question 14

Change the following ratio to a decimal. Round to the hundredths place.
3 : 7

Question 15

Upon admission to the hospital, a child weighed 62 lb. One week later, upon discharge, the child weighed lb. How much weight did the child lose?

Question 16

Change the following ratio to a percent. Round to the hundredths place.
0.7 : 2.8

Question 17

A class of students consists of 9 men and 51 women. Write a proper fraction to represent the part of the total class that is women. Reduce the fraction. Change the fraction to a percent.

Question 18

Change the following ratio to a decimal. Reduce to the hundredths place.
0.26 : 0.92

Question 19

A student received a score of 48 points on a test that was worth 60 points. Write a fraction to represent the portion of the test the student had answered correctly. Reduce the fraction. Change the fraction to a percent.

Question 20

Solve for X. Round answers to two decimal places.

Question 21

Convert the following decimal to a percent.
0.99

Question 22

Convert the following % to a decimal.
5.25%

Question 23

Determine what % one number is of another number.
5 is what % of 1,500?

Question 24

Convert the following decimal to a percent.
0.04

Question 25

Determine what % one number is of another number.
30 is what % of 100?

Question 26

Find the value of X in the following equation.

Question 27

Convert as indicated. written as a ratio.

Question 28

Find the value of X in the following equation.

Question 29

Determine the percentage of a given number.
75% of 50

Question 30

Determine the percentage of a given number.
25% of 40

Question 31

Convert the following decimal to a percent.
0.0016

Question 32

Convert as indicated. written as a ratio.

Question 33

Convert the following % to a decimal.
66%