7.5.12

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1a. 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?

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1b. A teacher uses 36 cm of tape to hang up 9 student projects. At that rate, how much tape would the teacher need to hang up 10 student projects?

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2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
a)

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2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
b)

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2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
c)

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2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
d)

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

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3b. A tugboat traveled -1.5 miles in 0.3 hours. What was its velocity?

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3c. What do you think that negative distances and velocities could mean in this situation?

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4. Use the text tool to describe a situation where each of the following quantities might be useful.

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5. A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters. 
a) At what depth is it after: 
i.    1 stage _______ 
ii.   2 stages _______ 
iii.  4 stages _______ 

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5b. How many stages will it take to return to the surface?

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Exit Ticket
1. A submarine is descending to examine the sea floor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent.
Write an equation to represent the relationship between the submarine's elevation and time.
y is the elevation
x is the time in hours

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Exit Ticket
2. Another submarine's descent can be represented as y = -240x, where y is the elevation and x is the time in hours. How long will it take this submarine to make the descent?

1a. 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?

1b. A teacher uses 36 cm of tape to hang up 9 student projects. At that rate, how much tape would the teacher need to hang up 10 student projects?

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction. a)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction. b)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction. c)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction. d)

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

3b. A tugboat traveled -1.5 miles in 0.3 hours. What was its velocity?

3c. What do you think that negative distances and velocities could mean in this situation?

4. Use the text tool to describe a situation where each of the following quantities might be useful.

5b. How many stages will it take to return to the surface?

Exit Ticket1. A submarine is descending to examine the sea floor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent. Write an equation to represent the relationship between the submarine's elevation and time. y is the elevationx is the time in hours

Exit Ticket2. Another submarine's descent can be represented as y = -240x, where y is the elevation and x is the time in hours. How long will it take this submarine to make the descent?

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
a)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
b)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
c)

2. Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
d)

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

Exit Ticket
1. A submarine is descending to examine the sea floor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent.
Write an equation to represent the relationship between the submarine's elevation and time.
y is the elevation
x is the time in hours

Exit Ticket
2. Another submarine's descent can be represented as y = -240x, where y is the elevation and x is the time in hours. How long will it take this submarine to make the descent?