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scZoUnD [109]
3 years ago
14

Find the missing number in this proportion. 7 2 = 4

Mathematics
2 answers:
borishaifa [10]3 years ago
5 0

Answer:

x = 14

Step-by-step explanation:

I don't know which one you are supposed to solve it by so I will do both.

Solution by Cross Multiplication

For the equation

7x=24

The cross product is

7×4=x×2

Solving for x

x=7×42

and reducing

x=14

Solution by Proportion

Since the equation is an equality

If

7 ÷ 2 = 3.5

Then it is true that

x ÷ 4 = 3.5

Solving for x

x = 4 × 3.5

x = 14

LekaFEV [45]3 years ago
5 0

7/x = 2/4

2x = 28 (7×4=28)

× = 14 (28÷2=14)

So your answer is 14

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