Unit 9: Mixed Review w Word Problems

The population of fish in a pond is decreasing at a rate of 2 fish per month. After 3 months there are 50 fish left.

When will there be 40 fish left?

• 8 months

• 48 months

• 4 months

• 24 months

Write the equation that represents this word problem:

Marsha started the week with $20 and has a job that pays $15 per hour.

• y= 15x + 20

• y= 20x + 15

• y= 15 + 20

• y= 20 + 15

• Answer Not Here

An amusement park has an entrance fee, and then there is a cost to ride each ride. The total cost (y) can be modeled by y=1.5x+20 where x is the number of rides you ride. What does the y intercept represent?

• Number of rides

• The entrance fee

• The cost for food

• The cost per ride

Tags

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.C.7

The cost of printing 200 business cards is $23. The cost of printing 500 business cards at the same business is $35. Find the cost of printing 700 business cards.

• 41 cards

• $43

• $17125

• $65

• number of hours

• 150

• cost per hour

• 250

• fixed fee for initial meeting

• x

• total cost

• y

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet.

What is the average rate of change?

What is a point-slope equation for the climber?

• 200 ; y - 700 = 200(x - 6)

• 75 ; y - 6 = 75(x - 700)

• 300 ; y - 700 = 300(x - 6)

• 75 ; y - 700 = 75(x - 6)

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.IF.B.6

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

To order tickets online to a hockey game, there is a processing fee plus the cost per ticket. The cost for 5 tickets is $102.00 The cost for 8 tickets is $150. What are the two points that we could use to find a linear equation for cost, C, of t tickets?

Tags

CCSS.HSA.CED.A.2

Lee paid $125 in advance on his account at the gym. Each time he visits the gym, $10 is deducted from his account.

Which value represents the rate of change (m)?

• 10

• 125

• -10

Write the equation that represents this word problem:

Owen made $800 this month from working. He pays $15 each time he goes out to eat for dinner.

• y= 15 - 800x

• y= -15x + 800

• y= 15x - 800

• y= -15x - 800

• Answer Not Here

The start up cost to join eTunes music is $7.95 plus $0.95 per song downloaded. If Will spent $26, write and solve a linear equation to find how many songs he downloaded.

The linear equation is: ​ (a)  

Will downloaded ​ (b)   songs.

• 19
• y = 0.95x + 7.95
• 32.65
• y = 7.95x + 0.95
• y = 0.95x
• 34
• 16