Which one of the following statements expresses a true proportion?

A. 3:4 = 9:12 B. 54:9 = 6:3 C. 2:1 = 1:2 D. 7:9 = 8:9

Mrs Johnson is going to the mall. When she left home her odometer was 54,362. 15 minutes later the odometer read 54,362 miles. What is the average speed miles per hour?

In one grade of 150150 students, the ratio of boys to girls is 2 : 3. How many boys are in that grade?

A certain television is advertised as a 73-inch TV (the diagonal length). If the width of the TV is 48 inches, how many inches tall is the TV?

Write the missing term to make the ratios equal. 55:?=22:6

Estimate the time juanita will arive at her aount's home 320 miles away if she leaves at 9:00 am., drives about 60 miles per hour, and stops for a 40 minute break halfway

A pan balance shows x+2=10. If you add 5 units to one side, can you balance the scale by adding x units to the other side. Explain?

A problem states there are 5 more girls than boys and girls there are 27 students in the class in all How many boys are in the class What are the unknowns in this problem A Number of students in the class B The number of boys in the class C The

find the value of this integer expression: - 2 (+3+-4+-8++7), calculation with distribution and calculation without distribution

How do you convert 947.4777960769379 to pi?

Four students measure the length of a minute-long trial four times. They record their measurements as shown. Julian: 57.3 seconds, 58.8 seconds, 59.5 seconds, 62.