algebra
posted by Raphael Martins .
In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the
larger type, a printed page contains 1,800 words. Using a smaller type, a page contains
2,400 words. The article is allotted 21 full pages in a magazine. How many pages must be
in smaller type? ___________
Three individuals form a partnership and agree to divide the profits equally. X invests
$9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less
does x receive compared to having the profits divided in proportion to the amounts
invested by X, Y, and Z?

S+L=21
S*2400 + L*1800=48000
Is that correct? 
Assuming that their profit sharing should be in the same ratio as their investments
X:Y:Z = 9000:7000:4000
= 9:7:4
= 9x:7x:4x
then 9x+7x+4x = 4800
solve for x, and take it from there.
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