A father is 60 yrs old son is half his age .How old was the boy when his father was four times his age

2 answers:

8 0

Let F be the father's age, let S be the son's age
when: F = 60,
S = F/2 = 60/2 = 30

this means S = F-30

this means:
F/4 = F -30
F = 4F - 120
-3F = -120
F = 40

If the boy was 4 times less his father's age,
at this instance:
S = 40/4 = 10

therefore the son was 10 years old, the father was 40

inna [77]3 years ago

4 0

Let f be the fathers age and let s be the sons age

f = 60 s = 30
when f = 45
s = 15 which is only a third if his fathers age

when f = 40
s = 10 which is a quarter of his fathers age

therefore when his father was 4 times his age, the son was 10

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What are the coordinates of the midpoint of the segment whose endpoints are (-4,6) and (-8,-2)

umka2103 [35]

The formula to find the midpoint of a segment is ((x1 + x2)/2,),(y1 + y2)/2).

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3 years ago

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Umnica [9.8K]

Answer:

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Step-by-step explanation:

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