AnswersFL-1205040-MJ Grade 7 Mathematics B -GFSolving Scale Problems Using Proportions

Solving Scale Problems Using Proportions Answers

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Answers:
Selection 1:Cross multiply.
Selection 2:1/4
2
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= x

Answer:

24

3

What is the value of the missing measure?✔ 1/41/2416

A
✔ 1/4
B
1/2
C
4
D
16
4

144 =

Answers:
Blank 1:6x
Blank 2:24
5

What two ratios can be used in the proportion?3/8 and 18/x8/x and 3/18✔ 8/3 and 18/x18/3 and x/8

Answers:
Selection 1:8/3 and 18/x
Selection 2:6.75 inches
6

Analyze Medea’s work. In which step did Medea make an error?

A
In step 1, the corresponding parts are in different positions.
B
In step 2, the cross products should be multiplied instead of being equal.
C
In step 3, she should have added instead of multiplying to simplify.
D
In step 4, she needed to divide 2 to both sides to get x = 4.
7

Which side of the original parallelogram corresponds to the 6 ft side of the enlarged parallelogram? ✔ x ft1/3 ft8 ft6 ft

Answers:
Selection 1:x ft
Selection 2:Cross multiply.
Selection 3:1/4
8

What is the value of the missing measure?1.3 inches2.25 inches✔ 6.75 inches9 inches

A
1.3 inches
B
2.25 inches
C
✔ 6.75 inches
D
9 inches
9

Which of the following did you include in your response?

A
Vincent’s proportion is incorrect.
B
Corresponding parts are in different positions.
C
The heights and bases are in different positions.
10

What is the second step in solving the proportion?Add the ratios.Subtract the ratios.✔ Cross multiply.Cross divide.

A
Add the ratios.
B
Subtract the ratios.
C
✔ Cross multiply.
D
Cross divide.

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