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IgorC [24]
3 years ago
10

If drew is 3 years younger than jimmy and y is the sum of their ages what is a variable equation?

Mathematics
2 answers:
lianna [129]3 years ago
8 0
2x+3=y
X represents Drew's age and since Jimmy is 3 years older than Drew,x+3 represents Jimmy's age. 
antiseptic1488 [7]3 years ago
3 0
If jimmy's years is x,
then 3+2x=y
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Five years ago, John's age was half of the age he will be in 8 years. How old is he now?
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Then, the area become:

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To maximize the area, we derive and equal to zero:

\dfrac{dA}{da}=6-2\left(\dfrac{1}{2}+\dfrac{\pi}{8}\right )a=0\\\\\\6-(1-\pi/4)a=0\\\\a=\dfrac{6}{(1+\pi/4)}\approx6/1.78\approx 3.36

Then, b is:

b=6-\left(\dfrac{1}{2}+\dfrac{\pi}{4}\right)a\\\\\\b=6-0.393*3.36=6-1.32\\\\b=4.68

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