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a. 320 km in 5 hours is a rate of ______ per hour.
b. 48 books bought for $360 is at the rate of _______ per book.
c. If 900 litres of water flows through a tap in 2 hours, it is the rate of _____ per minute.
d. Richard works for 10 hours and is paid $145. His rate of pay is _____ per hour.
e. 5kg of peas cost $12.58, which equals _____ per kg.

Respuesta :

aneta43

Answer:

a. 64

b. 7.5

c. 7 min 5 sec

d. 14.5

e. 2.52
  1. The rate per hour is 64 km / hr.
  2. The rate per book is $7.50.
  3. The rate per minute is 5 litres.
  4. The rate pay per hour is $14.50.
  5. The weight per kg is 2.52 kg.

The rate per hour is known as the average speed.

Average speed = total distance / time

320 / 5 = 64 km / hr

The rate per book is the cost of one book.

Cost of one book = total cost of the book / number of books bought

$360 / 48 = $7.50

The rate per minute = total litres / total minutes

900 / (2 x 60)

900 / 180 = 5 litres per minute

Rate pay per hour = total amount earned / total hours worked

$145 / 10 = $14.50 per hour

Cost per kg = total cost of the peas / total weight of the peas

$12.58 / 5 = $2.52 per kg

To learn more about average speed, please check: brainly.com/question/9834403

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