MAT 045 FINAL EXAM REVIEW - PART II

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Write the ratio as a fraction in lowest terms.

1) 1)20 to 22

2) 2)104 miles to 128 miles

Find the unit rate.

3) 3)300 miles on 15 gallons of gas

4) 4)$4200 earned in 5 weeks

Find the best buy (based on cost per unit).

5) 5)Brand X: 15 oz for $3.75Brand Y: 10 oz for $2.40

6) 6)Brand A: 30 oz for $21.90Brand B: 24 oz for $16.80

Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.

7) 2x

=46 7)

8) 12

=x9 8)

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Solve the problem.

9) 9)On a map, the length of a nature-center trail is 8.4 centimeters. If the scale is 3 centimetersto 19 kilometers, what is the actual length of the trail?

10) 10)A hardware store had monthly sales of $94,800 and spent 4% of it on legal fees. How muchwas spent on legal fees?

11) 11)By switching service providers, a family's telephone bill decreased from about $50 a monthto about $43. What was the percent of decrease?

Convert the units.

12) 12)36 in. = ft (12 in. = 1 ft.)

13) 13)75 ft = yd (1 yard = 3 feet )

14) 14)22 c = pt (1 pint = 2 cups )

15) 15)2 c = fl oz (1 cup = 8 fl oz )

16) 16)9.10 m = cm

17) 17)3.9 L = mL

18) 18)0.83 L = mL

2

Find the perimeter.

19) 19)8 ft 4 ft

9 ft

Find the area.

20) 20)

30 yd34 yd

24 yd

Find the perimeter and area of the figure.

21) 21)1.71 feet perimeter = _______________

4.4 feet 4.4 feet

1.71 feet area = _______________

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