Bob11111 Bob11111

20-02-2015
Mathematics

Answered

you by 100 sweets for a total cost of $15.00.what did you buy if these are the prices :candy bar-$.50 gum ball-$0.05 cotton candy-$1.00

Verified Answer :

crisforp crisforp

20-02-2015

ca + g +co = 100 ;
ca0.50 + g0.05 + co1.00 = 15.00 ; / 20
where ca = numbers of candy bar; g = numbers of gum ball; co = numbers of cotton candy;

We have to combine ca + g + co = 100 with 10ca + g + 20co =300 ;

10ca - ca + g - g +20co - co = 200;

9ca + 19co = 200;

ca = 18; co = 2 and g = 100 - ( 18 + 2 ) = 80.

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