A local boys club sold 176 bags of mulch and made total of $520.

Question

It sold two types of mulch: hardwood for $3.50 a bag and pine bark for $2.75 a bag . How many bags of each kind of mulch did it sell ?

i need help with this problem can some one tell me how to do it . i put the rest ^

Answer 1

Hi Daniel, let x represent the mulch that sold for $3.50 a bag and y represent the other mulch type. Set up two equations and solve.

 

Equation 1, number of bags sold:

 

x + y = 176

 

Equation 2, total cost:

 

3.50 * x + 2.75 * y = 520

 

Equations to solve:

 

       x +       y   =  176

3.50x + 2.75y   =  520

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I suggest you use elimination, but substitution could also be used to solve the system.

 

Questions?