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Cross Multiplying

Mathematics

9th - 10th Grade

CCSS covered

Used 83+ times

Cross Multiplying
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28 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve the proportion.
k/6 = 15 / 18

k=5
k=3.3333333
k=60
k=90

Tags

CCSS.6.EE.B.7

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve using cross products:
5/6 = x/12

x = 10
x = 1
x = 12
x = 11

Tags

CCSS.6.EE.B.7

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Use cross products to determine if these ratios are proportional:
4/5 = 3/4

no
yes

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Use cross products to solve for the value of n. 
2/16 = 15/n

n = 120
n = 18
n = 16
n = 100

Tags

CCSS.7.RP.A.2C

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Cross Multiply
4/3 = (x+5)/6

x=3
x=4
x=.3333
x=5

Tags

CCSS.7.RP.A.3

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Solve for a

40/3
80/3
20/3
10/3

Tags

CCSS.6.EE.B.7

7.

MULTIPLE CHOICE QUESTION

2 mins • 12 pts

Media Image

Solve for n

15/3
14/3
14
12

Tags

CCSS.7.RP.A.2B

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