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aleksandr82 [10.1K]
2 years ago
13

PLEASE HELP!!! I PUT 50 POINTS

Mathematics
2 answers:
Lubov Fominskaja [6]2 years ago
7 0

Answer:

7

Step-by-step explanation:

1/3 =<em> </em><em>?</em><em>/</em>21

1*?<em> </em>=?

3*? = 21

1*7 = 7

3*7 = 21

Eduardwww [97]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

7 times 3 =21   and 21 times 1 =21           cross multiply or butterfly method

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Polygon C and polygon D are similar. The perimeter of polygon C is 192 inches, and the perimeter of polygon D is 48 inches. If o
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Answer:

B. 2 in.

Step-by-step explanation:

First, put the two perimeters together to form a fraction.

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2 years ago
How would you do number 8?
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Step-by-step explanation:

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2 years ago
How to do this problem because it's hard
Elenna [48]
You will need to set up and solve 2 equations:
A) 3 Vans + 10 Buses = 379
B) 14Vans + 13 Buses = 624
Multiply equation A by -14
A) -42 Vans -140 Buses = -5,306  then Multiply equation B by 3
B) 42 Vans + 39 Buses = 1,872
Adding BOTH equations
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A) 3 Vans = 39
Each van = 13 students




4 0
3 years ago
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