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REY [17]
3 years ago
15

Solve the proportion 35/30 = 28/? A. 48 B. 23 C. 24 D. 46

Mathematics
1 answer:
koban [17]3 years ago
6 0

Answer:

C. 24

Step-by-step explanation:

by algebra:

let "?" be x

35/30 = 28 / x   (multiply both sides by 30)

35 = (28/x) (30)   (multiply both sides by x)

35x = (28)(30)

35x = 840  (divide both sides by 35)

x = 840 / 35

x = 24

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3 years ago
If (3-4i) (x+iy) = 3 root 5<br> show that x^2 + y^2=9/5
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Answer:

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Step-by-step explanation:

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