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Open Up - Grade 7 - Mathematics - Unit 5 - Lesson 12

By Formative Library
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Last updated over 2 years ago
14 Questions
1
1.
A cookie recipe uses 3 cups of flour to make 15 cookies.

How many cookies can you make with this recipe with 4 cups of flour? (Assume you have enough of the other ingredients.)
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2.
A teacher uses 36 centimeters of tape to hang up 9 student projects.

At that rate, how much tape would the teacher need to hang up 10 student projects?
7.RP.2.a
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1
3.
Evaluate the expression. When the answer is not a whole number, write your answer as a fraction.
7.RP.2.a
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4.
Evaluate the expression. When the answer is not a whole number, write your answer as a fraction.
7.RP.2.a
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5.
Evaluate the expression. When the answer is not a whole number, write your answer as a fraction.
7.RP.2.a
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1
6.
Evaluate the expression. When the answer is not a whole number, write your answer as a fraction.
7.RP.2.a
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7.
Some boats were traveling up and down a river. A satellite recorded the movements of several boats.

A motor boat traveled -3.4 miles per hour for 0.75 hours. How far did it go?
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8.
Some boats were traveling up and down a river. A satellite recorded the movements of several boats.

A tugboat traveled -1.5 miles in 0.3 hours. What was its velocity?
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9.
Some boats were traveling up and down a river. A satellite recorded the movements of several boats.

What do you think that negative distances and velocities could mean in this situation?
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10.
Describe a situation where each of the following quantities might be useful.

-20 gallons per hour
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11.
Describe a situation where each of the following quantities might be useful.

-10 feet per minute
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12.
Describe a situation where each of the following quantities might be useful.

-0.1 kilograms per second
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13.
A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters.

At what depth is it after:
1 stage
2 stages
4 stages
(One answer per stage)
  • -100
  • -160
  • -220
  • -280
  • -340
  • -20
  • 1 Stage
  • 2 Stages
  • 4 Stages
7.RP.2.a
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14.
A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters.

How many stages will it take to return to the surface?
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