2 years ago

Selena is 6 years younger than pual. in 15 years, pual will be 4 times the age Selena is now. what are their present ages?

Mathematics

1 answer:

marusya05 [52]2 years ago

8 0

Answer:

13 & 7.

Hope this helps.

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If f(x)=1/6x+12, then f^-1(x)=<br> PLEASE HELP

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$f(x)=\dfrac{1}{6}x+12\to y=\dfrac{1}{6}x+12$

Change x to y, and y to x.

$x=\dfrac{1}{6}y+12$

solve for y:

$\dfrac{1}{6}y+12=x\ \ \ |-12\\\\\dfrac{1}{6}y=x-12\ \ \ \ |\cdot6\\\\y=6x-72$

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