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Paladinen [302]
3 years ago
12

Solve the proportion: 4/x = 2/7

Mathematics
2 answers:
4vir4ik [10]3 years ago
7 0

Answer:

x = 14

Step-by-step explanation:

Cross multiply.

7 x 4 = 28.

X x 2 = 2x

2x = 28

x = 14

N76 [4]3 years ago
4 0

Answer:b

Step-by-step explanation:

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If f(x)= 2x^2 -4x and g(x) = 5 – 2x, evaluate f(x) – g(x) for x = 5
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<span>If f(x)= 2x^2 -4x and g(x) = 5 – 2x, evaluate f(x) – g(x) for x = 5

you first plug in 5 for x in both equations...
(2(5)^2-4(5))=f(x)
5-2(5)=g(x)

now you evaluate...
(2(25)-20)-5-10
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Answer:
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</span>
6 0
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