Unit 3 Assessment

Front

What is 75% of a number?

Back

To find 75% of a number, multiply the number by 0.75.

Front

If a family has traveled 45 miles and this represents 75% of their journey, how do you find the total distance?

Back

Divide the distance traveled (45 miles) by the percentage completed (0.75). Total distance = 45 / 0.75 = 60 miles.

Front

How do you calculate the total distance of a trip if you know the percentage completed and the distance traveled?

Back

Use the formula: Total Distance = Distance Traveled / Percentage Completed.

Front

What is 60% of a number?

Back

To find 60% of a number, multiply the number by 0.60.

Front

If Lin’s family has traveled 30 miles and this represents 60% of their trip, how do you find the total trip length?

Back

Divide the distance traveled (30 miles) by the percentage completed (0.60). Total trip length = 30 / 0.60 = 50 miles.

Front

What does it mean if 24 is 75% of a number?

Back

It means that 24 is three-quarters of that number. To find the number, divide 24 by 0.75.

Front

If 30% of a number is 12, how do you find the number?

Back

Divide 12 by 0.30. The number = 12 / 0.30 = 40.

Front

What is the formula to find a number when a percentage of it is known?

Back

The formula is: Number = Known Value / Percentage.

Front

If it took 4 hours to drive 240 miles, how do you find the time to drive 90 miles?

Back

First, find the speed: Speed = Distance / Time = 240 miles / 4 hours = 60 miles/hour. Then, use the formula: Time = Distance / Speed = 90 miles / 60 miles/hour = 1.5 hours.

Front

What is the relationship between distance, speed, and time?

Back

The relationship is given by the formula: Distance = Speed × Time.