Semester 1 Review

Semester 1
Review

Multiple Choice

Find the constant of proportionality in this table.

• 15

• 4

• 5

• 20

Multiple Choice

A skateboard that originally sells for $200 was on sale for $160.

By what percent was the price decreased?

• 125%

• 80%

• 20%

• 160%

Multiple Choice

According to the table, how many meters would be in 30 seconds?

• 120 meters

• 100 meters

• 30 meters

• 90 meters

Multiple Choice

Solve the equation.

$$\frac{x}{5}-13=20$$

• $$x=145$$

• $$x=165$$

• $$x=180$$

• $$x=190$$

Multiple Choice

Which equation represents the problem below.

You bought a $5 magazine and four erasers. You spent a total of $25.

How much did each eraser cost?

• $$5+x=25$$

• $$5+4x=25$$

• $$5x=25$$

• $$23-5=4x$$

Multiple Choice

According to the graph, how much water is used in 4 minutes?

• 10 gallons

• 15 gallons

• 20 gallons

• 4 gallons

Multiple Choice

Which of these situations would be represented by -15 + (-9)?

• Frank owes his friend 15 dollars and his brother 9 dollars

• Marnie made 15 dollars babysitting, and then spent 9 dollars

• Ria scored 15 points yesterday and 9 points today

• The shark dove 15 feet, then swam up 9 feet

Multiple Choice

$$\frac{3}{4}-\frac{2}{10}=$$  

• $$\frac{11}{20}$$  

• $$\frac{9}{10}$$  

• $$\frac{11}{24}$$  

• $$\frac{9}{4}$$  

Multiple Choice

Simplify the expression.

$$(5x+3)-(2x-5)$$

• $$3x+8$$

• $$3x-2$$

• $$7x+8$$

• $$7x-2$$

Multiple Choice

Brand A sells granola bars, $1.19 per bar. Brand B has a sale, 4 granola bars for $5.

Which is the better buy? Justify your answer.

• Brand A

• Brand B

Multiple Choice

Betty makes pies. To make 6 pies, she uses $$7\ \frac{1}{2}$$  Cups of flour. How many cups of flour are needed to make 1 pie?

• $$1\ \frac{1}{4}$$  cups

• 45 cups

• $$1\ \frac{1}{2}$$ cups

• 1/4 cup

Multiple Choice

Solve: 

$$2x+6=14$$  

• x = 4

• x = 10

• x = -4

• x = 3

Multiple Choice

Solve: 

$$\frac{x}{2}-5=3$$  

• x = -2

• x = 2

• x = 16

• x = 8

Multiple Choice

Which of the following expressions is a representation of how Henry got a 3.5% tax added to the price of his house, h.

• $$H+3.5$$

• $$H+.035H$$

• $$H-0.35H$$

• $$H\left(3.5\%\right)$$

Multiple Choice

Jason wants to buy a shirt for $40.50 and is on sale for 10% off. He also has to pay 5% tax. What is the final price.

• $4.50

• $48

• $46.77

• $44.55

Multiple Choice

What would be the expression that used to calculate the simple interest of a $60,000 car that was financed for 60 months at a rate of 7%.

• $$I=\left(60,000\right)\left(7\right)\left(60\right)$$

• $$I=\left(0.07\right)\left(12\right)\left(60,000\right)$$

• $$I=\left(60,000\right)\left(0.07\right)\left(5\right)$$

• None of these
  

Multiple Choice

Jennifer has a coupon for 25% off her entire meal of $17.89. What is the discount?

• $13.42
• $4.47
• $4.48
• $0.44

Multiple Choice

Which expressions is equivalent to $$\frac{1}{2}\left(2x-8\right)$$  ?

• $$4x-16$$  

• $$x-4$$  

• $$2x-4$$  

• $$x-8$$  

Multiple Choice

Which is an equivalent expression of: $$6\left(3x+5\right)-11$$  

• $$18x-5$$  

• $$18x+10$$  

• $$18x-11$$  

• $$18x+19$$  

Multiple Choice

Which is an equivalent expressions of $$-2\left(5r+3\right)+9r$$  

• $$-19r-3$$  

• $$-10r-6$$  

• $$-10r+3$$  

• $$-r-6$$  

Multiple Choice

In Fairbanks, Alaska, the temperature one day was $$-18\degree$$  and on the same day the temperature was 83 degree higher in Honolulu, Hawaii. What was the temperature in Honolulu, Hawaii, on that day?

• $$65\degree$$  

• $$75\degree$$  

• $$83\degree$$  

• $$101\degree$$  

Multiple Choice

A bowling special costs $8.50 per hour for each adult and $5.00 per hour for each child. One adult and two children go bowling. What is an equation that shows the relationship between cost,  $$c$$  , in dollars and time,  $$t$$  , in hours?

• $$c=8.50t+5.00$$  

• $$c=8.50+5.00t$$  

• $$c=13.50t$$  

• $$c=18.50t$$  

Multiple Choice

Jamal sold a total of $9,500 worth of clothing last week at this store. If his commission is 12% of sales, how much commission did he earn?

• $114

• $120

• $1,140

• $1,200

Multiple Choice

Simplify the following expression:

$$5(x-2)+3x+2$$

• $$8x-8$$

• $$2x-10$$

• $$8x$$

• $$8x+12$$

Multiple Choice

Ralph buys a computer for $650. The sales tax rate is 6%. How much did Ralph pay for the computer after tax?

• $39

• $689.00

• $1,040.00

• $656.00

Multiple Choice

What is the additive inverse of -9? 

• 9

• $$\frac{1}{9}$$

• 0

• -9

Multiple Choice

In the world’s coldest freezer, sodium gas was cooled to a temperature of 78.5°C below zero and then cooled 194.65°C more. What was the new temperature of the sodium gas?

• –273.15°C

• –272.7°C

• –202.5°C

• –116.15°C

Multiple Choice

The counselors at a camp are scheduling activities for family visitation day. They decide to conduct a survey to determine which activities campers would most like to share with their families. Which describes a method for getting a sample that is both representative and random?

• During the dinner hour, announce that any camper interested in doing so can collect and complete a survey.

• During camp free time, ask every fifth camper in the arts and crafts hall to complete a survey.

• During morning roll call, ask every tenth camper to complete a survey.

• During camp free time, ask all campers down at the lake to complete a survey.

Multiple Choice

Simplify the expression.

$$\frac{5}{9}+\left(-\frac{1}{3}\right)$$

• $$-\frac{2}{9}$$

• $$-\frac{5}{9}$$

• $$\frac{2}{9}$$

• $$\frac{4}{6}$$

Multiple Choice

The line plots show the number of hours Bill and Vincent spent exercising each week. Which statement correctly compares the the information?

• Bill's average number of hours spent exercising is more than Vincent's average number of hours spent exercising.

• Bill's median number of hours spent exercising is more than Vincent's median number of hours spent exercising.

• Bill's average number of hours spent exercising is more than than Vincent's median number of hours spent exercising.

• Bill's median number of hours spent exercising is less than Vincent's average number of hours spent exercising.

Multiple Choice

Simplify the expression.

$$-\frac{5}{4}\cdot\frac{1}{3}$$

• $$-\frac{6}{12}$$

• $$-\frac{5}{12}$$

• $$\frac{5}{12}$$

• $$-\frac{5}{7}$$

Math Response

Elena has overdrawn her savings account by $45. How much money needs to be added to her account to to bring her account balance to $0?

Type answer here

Correct Answer: 45

Deg^°

Rad

Math Response

Maria collects data from a random sample of seventh graders in her school and finds that 16 out of 20 seventh graders participate in after-school activities. How many students should Maria expect to participate in after-school activities if there are 240 seventh graders attending Maria's school?

Type answer here

Correct Answer: 192

Deg^°

Rad

Fill in the Blank

Convert $$\frac{1}{4}$$  to a decimal.

Multiple Choice

Solve the equation.

$$3c+5=23$$

• $$c=3$$

• $$c=6$$

• $$c=7$$

• $$c=18$$

Multiple Choice

Which multiplication expression is equivalent to this division expression?

$$-\frac{5}{15}\ \div\ \frac{11}{45}$$  

• $$-\frac{5}{15}\ \times\ \frac{11}{45}$$  

• $$-\frac{15}{5}\ \times\ \frac{11}{45}$$  

• $$-\frac{5}{15}\ \times\ \frac{45}{11}$$  

• $$-\frac{15}{5}\ \times\ \frac{45}{11}$$  

Multiple Choice

Evaluate the expression for $$q=8.5$$ and $$r=3$$ .

  $$qr-r$$  

• 14.5

• 28.5

•   8.5

• 22.5

Fill in the Blank

Convert $$\frac{1}{8}$$  to a decimal.

Multiple Choice

Identify the repeating decimals.
I.  $$-0.\overline{353}$$   II.  $$3.611$$ III   $$-1.5333...$$ IV.  $$\frac{1}{8}$$ V.  $$\frac{7}{9}$$

• I and III

• I, III, V

• II

• I

Multiple Choice

A field has a length of $$6\frac{2}{3}$$ yd and a width of $$4\frac{3}{4}$$ yd.

What is the area of the field?

• $$31\frac{2}{3}\ yd^2$$

• $$31\frac{1}{3}\ yd^2$$

• $$31\frac{2}{3}\ yd$$

• $$22\frac{5}{6}\ yd^2$$

Multiple Choice

Which scenario will result in a total change of zero?

• Brenda gave away 4 apples to her mom and gave away 5 apples to her dad.

• Jason road his bike 2 miles north, then turned around and biked 2 miles south.

• Xavier road the elevator up 3 floors, then rode the elevator up 3 floors.

• The temperature outside was -50 degrees and fell 50 degrees.