Solve the proportional equation 3/r = 5/r+3
1 answer:
Answer:
r=9/2 or 4.5
Step-by-step explanation:
First of all our goal is to get R by itself
by cross multiplying we get,
(r+3)*3=5r
by distributive property we get
3r+9=5r
substracting 3r from both sides we get
9=2r
by dividing by 2 in both sides we get
r=9/2 or 4.5
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Step-by-step explanation:
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Multiply 5.4 by 7:
Now divide 37.8 by 4:
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Answer:
point A is x=4 and y=12
point B is x=16 and y=32
