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Grade 5 - Mathematics
12.1 Rates and Speed

Distance = Rate x Time
This formula can be written in different ways: To find rate, divide through on both sides by time:

Rate = Distance / Time
Rate is distance (given in units such as miles, feet, kilometers, meters, etc.) divided by time (hours, minutes, seconds, etc.).
Rate can always be written as a fraction that has distance units in the numerator and time units in the denominator, e.g., 25 miles/1 hour.

Time = Distance / Rate
When using this equation, it's important to keep the units same.
For instance, if the rate the problem gives is in miles per hour (mph), then the time needs to be in hours, and the distance in miles.
If the time is given in minutes, then divide by 60 to convert it to hours before you can use the equation to find the distance in miles.

Speed is defined as rate of change of distance. Speed is found using the formula: Speed = Distance / Time

  1. Speed is defined as rate of change of distance.
  2. Speed is found using S = D/T (S = Speed, D = Distance, T = Time)
  • A factory worker is paid $96 for working 8 hours. What is his rate?
    For 1 hour, he is paid $96/8 = $12.
    Answer: He is paid the rate of $12 per hour.
  • If a car travels 55 mph for 5 hour. Find the distance the car travelled.
    Speed = D/T
    D = S x T
    D = 55 x 5
    Answer: 275 m

Directions: Solve the following. Also write at least 10 examples of your own.

Name: ___________________


Grade 5 - Mathematics
12.1 Rates and Speed

Q 1: If a car travels 35 mph for 7hour. Find the distance the car traveled.

Q 2: If a car travels 1,125 mi at 125 mph. Find the time.
9 hours
7 hours
8 hours

Q 3: 1,600 8 s. Find the rate.
223 ft per s
200 ft per s
345 ft per s

Q 4: Jim drove 220 miles in 4 hours on Tuesday. What was his average rate of speed?
85 mph
65 mph
55 mph

Q 5: Going an average speed of 50 mph, Jessica drove 300 miles. Determine how much time she spent driving
6 hours
12 hours
10 hours

Q 6: Joseph ran his scooter 35 mph for 2 hours. How far did he travel?
60 miles
50 miles
70 miles

Q 7: There are 5 girls to 9 boys in girl scout troop 123. Which ratio is the correct?
5 to 9

Q 8: What is a rate
is the ratio between two different quantities
is ratio between two equal quantities

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Question 10: This question is available to subscribers only!

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