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Operations w/Positive and Negative Numbers (Week 8)

Last updated almost 3 years ago
22 questions
1

Last week, the price, in dollars, of a gallon of gasoline was g . This week, the price of gasoline per gallon increased by 5%.

Which expressions represent this week's price, in dollars, of a gallon of gasoline? Select all that apply.

…
1

Add.

-9.2 + 4.4

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1

Add.

-81.4 + (-12)

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1

Tyler orders a meal that costs $15.

If the tax rate is 6.6%, how much will the sales tax be on Tyler’s meal?

1

How much higher is 500 than -400 m?

1

What is the change in elevation between 8,500 m and -300 m?

1

The diameter of a bike wheel is 27 inches. If the wheel makes 15 complete rotations.

How far does the bike travel? (Round to the nearest whole number)

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1

The numbers are measurements of radius, diameter, and circumference of circles A and B. Circle A is smaller than Circle B.

Which number belongs to which quantity? 2.5, 5, 7.6, 15.2, 15.7, 47.7

  • 15.7
  • 47.7
  • 15.2
  • 2.5
  • 5
  • 7.6
  • Circle A
  • Circle B
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1

Triangle S and Triangle L are scaled copies of one another.
What is the scale factor from S to L?

1

Triangle S and Triangle L are scaled copies of one another.
What is the scale factor from L to S?

1

Decide whether or not each equation represents a proportional relationship.

  • Yes, The equation is a proportional relationship
  • No, the equation is not a proportional relationship
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1

Last week, it rained g inches. This week, the amount of rain decreased by 5%.

Which expressions represent the amount of rain that fell this week? Select all that apply.

…
1

Add.

…
1

Add.

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1

Match each diagram with a description and an equation.


  • a decrease by \frac{2}{5}
  • y=.6x
  • An increase by \frac{5}{6}
  • y=1.83x
  • Diagram A
  • Diagram B
1

Write the following equation as an addition equation.(please submit your answer in a= form)

a - 9 = 6

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1

Solve the equation from #16

1

Write the following equation as an addition equation.(please submit your answer in a= form)

a -(-12) = 15

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1

Solve the equation from #18

1

Write the following equation as an addition equation.(please submit your answer in a= form)

a -20 = -30

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1

Solve the equation from #20

1

Find each difference.

Draggable itemCorresponding Item
-5
9 - 4
13
4 - 9
-5
9 - (-4)
5
-9 - (-4)
5
-9 -4
13
4 - (-9)
-13
-4 - (-9)
-13
-4 - 9
…