Shirin's father is four times as old as she is. In 18 years he will be exactly twice as old as .Find their present ages. who will give me correct answer I will make it brainiest
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Shirin's father is four times as old as she is. In 18 years he will be exactly twice as old as .Find their present ages. who will give me correct answer I will make it brainiest
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Answer:
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Answer:
pls mark me the brainliset and here is the answer
Step-by-step explanation:
Let we assume that shirin is X years old, and her father is Y years old.
At, present the equation is y=4x......(1)
after 18 years age of shirin and her father will increase by 18 years, hence we can write an equation after 18 years is (y+18)=2(x+18)......(2)
now put y=4x in equation (y+18)=2(x+18)
so, (4x+18)=2(x+18)
4x+18=2x+36
4x-2x=36-18
2x=18
x=9
here, x=9 put in an equation (1).
so, y=4x
y=4(9)
y=36
we have found out that shirins's current age is 9 years and her father's current age is 36 years
pls pls pls pls pls pls pls mark me the brainliset i beg u