Unit 1-3 Practice Test

In which situations do the quantities combine to make 0?

• Claire ran two laps clockwise around the track then ran another 2 laps counterclockwise around the track.

• Greg deposited $40 in his account last week then withdrew $30 this week.

• Paul ran 4 miles on Monday and walked 3 miles on Tuesday.

• Sarah bought a necklace for $75 and one year later sold it for $75.

Which expression is equivalent to the following expression?

 $8-23$  

•  $-8-23$  

•  $8\ -\ \left(-23\right)$  

•  $8\ +\ \left(-23\right)$  

•  $-8\ +\ 23$  

Choose all of the following that makes a true statement.

• $4\ -\ 4\frac{1}{2}=$ a negative #

• $-5.6\ -\ \left(-2\right)\ =\$ a positive #

• $-1.3\ -5\ =$ a negative #

• $-40\ +\ 40\ =\ 0$

• $70\ +\ \left(-25\right)\ =-50$

Pam is making chocolate chip cookies. The number of cups of flour she uses is proportional to the number of cookies made. Pam uses  $5\frac{1}{2}$   cups of flour to make 2 dozen cookies. Choose which equation that represents the relationship between f, the number of cups of flour and c, the number of dozens of cookies.

•  $f=2\frac{3}{4}c$  

•  $f=\frac{4}{11}c$  

•  $f=11c$  

•  $f=4\frac{1}{4}c$  

Patty tracks her canoe rental cost use throughout the month of January. The graph shows the relationship between total cost and time in hours. What does the point (2,24) on the graph mean?

• Patty didn't rent a canoe last month.

• Patty's cost was $24 for 2 hours.

• After 24 hours, Patty's cost was $2.

• After 48 hours, Patty's cost was $4.

Cameron wants to buy rings that cost $80 each. A jeweler is offering a deal in which you buy 1 ring and get the 2nd for 50% off. The sales tax is 10%. Cameron will buy 2 rings. How much money will Cameron save using the deal instead of paying full price for both rings?

• $134

• $44

• $178

• $23

The graph shows the relationship between the number of hours Kayla's parents rent out Urban Air for her birthday party. Is there a proportional relationship between the number of hours and the total cost? If there is a proportional relationship, what is the constant of proportionality? Choose all that apply.

• There is a proportional relationship between the hours and total cost.

• There is NOT a proportional relationship between the hours and total cost.

• The constant of proportionality is 50.

• The constant of proportionality is 75.

Daniel always buys the same kind of soy sauce in a 7.5-ounce bottle. He is at the store buying more and sees that the bottle is now bigger and has 40% more for the same price. How many ounces of soy sauce are in the new bottle?

• 10.5

• 12

• 2.5

• 17

Ja'Caria's dance team went to Disney at the end of the season. The cost of admission for 4 coaches and 14 team members was $437.50. The admission cost for each coach was $17.50. What was the admission cost for each player?

• $12.50

• $26.25

• $37.75

• $30

Choose which expressions are equivalent to the expression below:

 $3x\ +\ 2\left(x+12\right)$  

• 5x+24

• 3x+24

• 2x+3(x+8)

• x+4(x+6)