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3 years ago

Assuming these triangles are similar,solve for x.

Mathematics

2 answers:

alexgriva [62]3 years ago

7 0

Answer:

x = 7

Step-by-step explanation:

40/16 = 2.5 scale factor that it's being enlarged by. So, 16 x 2.5 =40

45/2.5 = 18

2x + 4 = 18

- 4 both side

2x = 14

÷2 both side

x = 7

UNO [17]3 years ago

3 0

Answer:

Step-by-step explanation:

all the difference between these polygons is that the left one is 2.5x bigger than the one on the right (I found this out by doing 40/16 which is 2.5)

so now I need to divide 45 by 2.5

45/2.5=18

Now I know that

2x+4=18

-4 from both sides

2x=14

divide by 2

x=7

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Answer:

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Pretzel = 14

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Step-by-step explanation:

First Equation:

Chips + Pretzel + Chips = 42

Third Equation: Chips = Pretzel.

This means that

Pretzel + Pretzel + Pretzel = 42

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Second Equation:

Cookie + Chips + Cookie = 30

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Cookie + Cookie + Popcorn = 29

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Subtract 16 on both sides:

Popcorn = 13.

Question Mark:

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