Question 1207199
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tumi is selling two types of umbrellas.he sells type c at R45 a pair he sells type d at R30 .
if he sold 16 pairs in total and had a totl income of R585,how many pairs of sock c did h did Sal sell?
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<pre>
Solve using one unknown and one equation.


Let x be the number of items of type "c".
Then the number of items of type "d" is 16-x.


Write the total money equation

    45x + 30*(16-x) = 585  dollars  (revenue).


Divide both sides by 15

    3x + 2(16-x) = 39.


Simplify and find x

    3x + 32 - 2x = 39

    3x - 2x = 39 - 32

       x    =    7.


<U>ANSWER</U>.  7 items of type "c".
</pre>

Solved.


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