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Study Quiz
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1
Solve: x + 2 = 6
A)x = 3
B)x = 4
C)x = 6
D)x = 12
2
y = 3 is the solution for the equation
A)7 – y = 4.
B)y – 7 = 4.
C)–y + 4 = 7.
D)y + 7 = 4.
3
The payout P for a 50/50 draw based on $1 per ticket is calculated from the formula below where n is the number of tickets sold. Solve the equation to express n in terms of P.

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A)n = P + 2
B)n = P – 2
C)n = 2P
D)n = 0.5P
4
Sam has 3 times as many linking cubes as Anna, or 150 more. If the number of cubes that Anna has is represented by a, which equation can be used to find the value of a?
A)3a × a = 150
B)3a = 150
C)3a + a = 150
D)3a – a = 150
5
Solve: 2y + 3 = 9
A)y = 3
B)y = 4
C)y = 6
D)y = 12
6
Solve:
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A)a = 12
B)a = 1
C)a = –1
D)a = –12
7
Solve:
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A)x = –2
B)x = –1
C)x =0
D)x = 2
8
Scuba divers use the formula below to measure the water pressure P in atmospheres at a depth d in metres. Rearrange this equation to express d in terms of P.
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A)d = 10 + P

B)d = 10P

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D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070973199/362682/pom9_ch4_study_quiz1_ques8d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>
9
Karl works for an electronics store in the cell phone department. He receives $10 per hour, plus $25 for each cell phone activation that he sells. During one week he worked 40 hours and earned $700. How many activations did he sell during the week?
A)6
B)10
C)12
D)25
10
Dorita has a summer job mixing concrete for a building project. She has been instructed to use twice as much sand as cement, and three times as much gravel as cement. If she needs to make 120 kg of concrete, how much cement does she need?
A)75 kg
B)60 kg
C)40 kg
D)20 kg





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