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3 years ago

A man is 38 years old and his daughter is 14 years old. How

Mathematics

1 answer:

stira [4]3 years ago

5 0

Answer:

Step-by-step explanation

x+38=2(x+14)

The man is 38 and daughter is 14. They both will age in same years (x).

So, in how many years(x) will they both age until man is equal(=) to 2 times his daughters age?

x+ 38=2(x+14)

x+38=2x+ 28

10= x

In 10 years, the man will be 2twice as old as his daughter.

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gayaneshka [121]

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Adrian's songs played on 9 commercials and 5 movies.

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Put $x=14-y$ in (ii)

$40(14-y)+130y=1010\\560-40y+130y=1010\\90y=1010-560\\90y=450\\y=\frac{450}{90}=5$

Put $y=5$ in $x=14-y$

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Therefore, Adrian's songs played on 9 commercials and 5 movies.

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