1. which of the following represents a unit rate?

$4

12 books

5 pages
this one
2 minutes

80 beats

1 minute

72 inches

2 yards

2. a nonstop flight from albuquerque, nm to atlanta, ga takes 3 hours. if the plane flies a total of 1,269 miles, what is the plane's unit rate in miles per hour?

3,807
1,266
432 this is what i pick
423

3. three different bags of pretzels are sold at the store. which bag of pretzels is the best buy?

bag a: 10 ounces for 1.10
bag b: 12 ounces for 1.38
bag c: 6 ounces for 0.84

bag a
bag b
bag c this is what i pick
bag a and bag b are equally good values.

samantha types 40 words per minute. how many words can samantha type in 8 minutes?

48
240
320 this one
360

how many miles can a car travel on 15 gallons of gas if it travels 28 miles on 1 gallon of gas?

43
270
405
420 this one

Part 1)

Part 2)

Part 3) Bag A ounces for

Part 4)

Part 5)

Step-by-step explanation:

we know that

A Unit Rate is the ratio of two measurements in which the second term is equal to one

Part 1)

rewrite

the second term is equal to one

therefore

Is a unit rate

Part 2) To find the unit rate divide the total miles by the total hours

so

Part 3)

Find the unit price of each bag

Bag A ------->

Bag B ------->

Bag C ------->

The best buy is the bag A ( is the smallest unit price)

Part 4) we know that

Samantha types words per minute

so

by proportion

Find how many words type in minutes

Part 5) How many miles can a car travel on gallons of gas if it travels miles on 1 gallon of gas

by proportion

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation:

b. hannah is playing with her cousin at