Quiz 34 - Review

Question 1

Express 1 1/2% as a decimal

Answer 1

.015

Question 2

Change 2 7/8 to an improper fraction

Answer 2

23/8

Question 3

Find 3 1/2% of 2,000

Answer 3

.035 x 2000 =

70

Question 4

Round off $56.8953 to the nearest cent.

Answer 4

$56.90

Question 5

Divide 45.86 by 10

Answer 5

4.586

Question 6

Write the formula used to find simple interest

Answer 6

i = prt

Question 7

Write the square root of 81

Answer 7

9

Question 8

Square 9

Answer 8

81

Question 9

Find the mean of 16; 23; 15; 18

Answer 9

16 + 23 + 15 + 18 = 72

72/4 =

18

Question 10

Convert 15 km to miles. Remember 1 km = .62 miles

Answer 10

15 x .62 =

9.3 mi.

Question 11

Find the percent increase from $50 to $60.

Answer 11

The increase is $10. Put the increase over the original.

10/50 =

.2

20% increase

Question 12

Find the games won if the team won 3 out of every 5 games, and they played 25 games.

Answer 12

3 out of 5 = 3/5 = .6 or 60% won. Find number of games won out of 25 games played.

25 x .6 =

15

Question 13

Simplify 3x + 2(x + 2)

Answer 13

3x + 2x + 4

5x + 4

Question 14

Find the volume of a cube with an edge of 3 in.

Answer 14

V = e³

V = 3 x 3 x 3

V = 27 cu. in.

Question 15

Write the Pythagorean formula

Answer 15

c² = a² + b²

Question 16

Divide -20 by -5

Answer 16

4

because the two negatives cancel

Question 17

Write the number of degrees in a triangle

Answer 17

180

Question 18

Express 5 less than x algebraically

Answer 18

x - 5

Question 19

Classify 5x + 2y as a monomial, binomial, or trinomial

Answer 19

binomial

Question 20

Write the number of square inches in a square foot.

Answer 20

144 sq. in.

12 x 12 = 144