# Math

A shop owner blends three types of coffee,A,B,C.in the ratio 3:5:7
a) calculate the weight of each type of coffee in 45kg of three blended mixture.
b) given that type A coffee cost \$7 per kg, type B coffee costs \$10 kg and type C coffee costs \$13 per kg, calculate the cost per kg of the blended mixture

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1. 3x + 5x + 7x = 45
15x = 45
x = 3

A = 9 B= 15 C = 21

9(7) + 15(10) + 21(13)=486

486/45 = cost/kg

10.8 cost/kg for the mix.

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2. 3*3

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3. Sol:
Wt. of each type of coffee
= 3+5+7
= 15
= 3x3 3x5 3x7
= 9kg,15kg,21kg

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4. Part is missing i am very disappointed Please send the second part as soon as possible

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5. 3x+5x+7x=45
15x=45
x=3
A=9 B=15 C=21
9(7)+15(10)+21(13)=486
486/45 =cost/kg
10.80 cost/kg for mixture

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2. 👎 0

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