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at a restaurant the ratio of kids meals sold to adults meal was 5:4. if there were 20 kids meals sold, what is the combined amount of kids and adults sold meals sold?

Sagot :

luana
[tex]5x=20\ \ \ \ | divide\ by\ 5\\\\ x=4\\\\ 5x+4x=9x=9*4=36\\\\ Combine\ amount\ is\ 36.[/tex]
thisisbenmanley
I would set up a proportion:

[tex]\frac{20}{x}=\frac{5}{4}[/tex]

The proportion basically says, "if there are 5 kids meals for every 4 adult meals, that means 20 kids meals would mean x adult meals."  Just cross multiply and then solve for x:

[tex]\frac{20}{x}=\frac{5}{4}\\5x=80\\x=16[/tex]

That means there are 20 kids meals sold and 16 adult meals sold, so the result is:

36 meals in total.
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