Quiz about Chapter 15 test

Question 1

What is the area of this parallelogram?

Accepted Answer

32 units squared

Answer

17 units

Answer

32 units

Answer

40 units squared

Question 2

What is the area of the parallelogram?

Accepted Answer

120 yds squared

Answer

165 yards squared

Answer

120 yards

Question 3

Logan bought a book. The tax rate was 7%. How do you write 7% as a decimal in order to multiply?

Accepted Answer

0.07

Answer

0.7

Answer

7.0

Question 4

When you are finding sales tax, you first multiply the tax (in decimal form) times the cost of the item...then what?

Accepted Answer

Then add that amount to the original cost.

Answer

Then multiply again.

Answer

Then subtract that amount from the original cost.

Answer

Then do nothing - you're done.

Question 5

Logan bought a book for $5.95. THe tax rate was 8%. How much was the total cost for the book? (Your answer should only be to the hundredths place...you will need to ROUND!)

DO. NOT. JUST. GUESS.

THis problem takes some work. Take your time!

Accepted Answer

$6.43

Answer

$6.00

Answer

$6.426

Answer

$6.40

Question 6

If Brynna's book costs $6.78 WITH tax and she pays with a $20, how much will she get back from the cashier?

Accepted Answer

$13.22

Answer

$14.78

Answer

$26.78

Answer

$13.23

Question 7

You can change them to decimals,

You can multiply up,

You could draw a diagram.

Accepted Answer

4/5

Answer

1/6

Question 8

What are the coordinates for A?

Accepted Answer

(3,4)

Answer

(3, -4)

Answer

(-3, -4)

Answer

(4,4)

Question 9

What are the coordinates for C?

Accepted Answer

(-2, -4)

Answer

(2, -4)

Answer

(-2, 4)

Answer

(2, -4)

Question 10

What is the name of a five sided polygon?

Accepted Answer

pentagon

Answer

hexagon

Answer

square

Answer

parallelogram

Question 11

What is the name of a six sided polygon?

Accepted Answer

hexagon

Answer

pentagon

Answer

square

Answer

parallelogram

Question 12

What is the name of an 8 sided polygon?

Accepted Answer

octogon

Answer

pentagon

Answer

parallelogram

Answer

double square

Question 13

WRite the prime factorization of 30 and 72 to reduce the fraction $$\frac{30}{72}$$

Accepted Answer

$$\frac{5}{8}$$

Answer

$$\frac{3}{8}$$

Answer

$$\frac{15}{24}$$

Question 14

Write 1/4 in decimal form

Accepted Answer

0.25

Answer

0.14

Answer

0.41

Answer

0.33333

Question 15

Write 65% as a decimal.

Accepted Answer

0.65

Answer

0.6

Answer

6.5

Question 16

Write 65% as a reduced fraction.

DO NOT JUST GUESS.

Write it as a fraction! 65/100 and then what goes into both the numerator and denominator? REduce!!

Accepted Answer

$$\frac{13}{20}$$

Answer

$$\frac{65}{100}$$

Answer

$$\frac{6.5}{10}$$

Answer

$$\frac{13}{100}$$

Question 17

What is the LEAST (littlest) COMMON (common) MULTIPLE (when multiplied) of

4, 12, and 36

Accepted Answer

36

Answer

4

Answer

72

Answer

16

Question 18

6 - (3.2-1.5)

Accepted Answer

4.3

Answer

1.7

Question 19

How do you know where the decimal is in the product?

Accepted Answer

You add the place values behind the decimal in the factors and count from right to left.

Answer

You bring it straight down.

Answer

Left to right, jump the decimal.

Question 20

When you have a decimal in the divisor, how do you start the problem?

Accepted Answer

Jump the decimal over to the division bar and then do the same with the decimal place in the divisor.

Answer

Ignore it

Question 21

20 divided by 1.6 =

Accepted Answer

12.5

Answer

0.125

Answer

1.25

Question 22

What is the first step in adding fractions?

Accepted Answer

Find common denominators

Answer

Bring the decimal down

Answer

Add numerators

Answer

Add denominators

Question 23

15 $$\frac{3}{8}-$$ 11 $$\frac{2}{3}$$

Accepted Answer

3 $$\frac{17}{24}$$

Answer

5 $$\frac{23}{24}$$

Answer

4 $$\frac{7}{24}$$

Answer

3 $$\frac{33}{24}$$

Question 24

Solve 6 divided by 1 $$\frac{1}{2}$$

Don't just guess!

Write both as fractions (put 6 over 1, improper fraction for 1 1/2)

Then FIND THE RECIPROCAL of the DIVISOR ONLY!

Accepted Answer

5

Answer

4

Answer

1.3

Answer

$$\frac{1}{2}$$

Question 25

How do you multiply mixed numbers?

Accepted Answer

First put them both as improper fractions

Answer

Multiply the numerators

Answer

Find common denominators

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