Word Problems
Unit Rate
Ratio/Proportion
Better Buy
Solve the Proportion
100

The dosage for this pain reliever calls for a 70mg dose for every 5kg of body mass.  Ashton has a body mass of 85kg.  What dosage of pain reliever should he receive?

1190 mg

100
I make $32 in 4 hours
$8/hr
100
Do the ratios form a proportion? 3/4 and 9/12
Yes. 36 = 36
100
Sunmart sells a case of 24 cans of Diet Coke for $6.88. Shopko sells a 12 pack of Diet Coke for $3.99. Which is the best buy?
Sunmart $0.19/can (Shopko is $0.33/can) 3.5 cans/$ (Shopko is 3.0/$)
100
5/8 = x/48
x = 30
200

Renojan earned $76.50 in 6h at his part time job.  How much can he earn in a week in which he works 28h?

$357

200
A car travels 576 miles in 16 hours
36 mi/hr
200
Do the ratios form a proportion? 2/5 and 8/16
NO. 32 does not equal 40
200
A 12 oz box of Thanksgiving stuffing is $2.15, while a 16 oz box costs $2.88. Which is the better buy?
12 oz box 5.58 oz/$ (16 oz is 5.56 oz/$) $0.179/oz (16 oz is $0.180/ oz)
200
3/12 = x/60
x=15
300

If Katlyn uses 5L of black pain in the span of 10mins. How much paint will she use in 1 hour?

30L

300
There are 93 students in 3 classes
31 students/class
300
Do the ratios form a proportion? 2/9 and 6/12
NO. 24 does not equal 54
300
An 11 pound turkey costs $15.00, while the 16 pound turkey is on sale for $20.00. How much would you save with the sale price?
16 pound 0.8 lb/$ (11 is 0.73 lb/$ ) $1.25 per lb (11 pound is $1.36 per lb
300
x/9 = 16/6
x=24
400

Steve tells his friend Cooper that a human at the age of 30 needs 15 cups of water a day.  Cooper is 16  years old.  How many cups of water does Cooper need to drink daily?

8 cups

400
I can eat 12 hamburgers in 1.5 hours
8 hamburgers/hour
400

Keira is tasting two jams.  Sydney's jam is made with cups of strawberries and sugar in the ratio of 12:10.  Savi's jam is made with cups of strawberries and sugar in the ratio of 6:4.  Whose jam will taste sweeter?

Sydney's jam is sweeter.

400
A 16 oz. can of Cream Corn sells for $1.09, while the 32 oz. can is on sale for $1.89. How much would you save with the sale price?
32 oz can $0.06/oz (16 oz can is $0.07 per/oz ) 16.9 oz/$ (16 oz can is 14.7 oz/$
400
816/x = 51/4
x=64
500

A study shows that a 75 kg person should eat 125 chips each day.  Bob weighs 1725 kg how many chips does Bob need to consume each day to maintain his figure?

2875 chips

500
A dozen roses cost $15
$1.25/rose
500

There are 3 computer labs in the school.  The first lab has 19 computer. There are 12 students working on the computers. The second lab has 24 computers.  There are 15 students working on the computers.  The third lab has 12 computers. There are 8 students working on the computers.  Which lab is the busiest?

Lab 3 is the busiest.

500
For every 4 black labs at a hunting dog training school, there are 3 black labs. If there are 48 black labs, how many yellow labs are there?
36 yellow labs
500
1.5/4 = 15/x
x=40
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