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Susan's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Susan $5.45 per pound, and type B coffecosts $4.05 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $633.60. Howmany pounds of type A coffee were used?

User Ruzard
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1 Answer

20 votes
20 votes

Given:

Susan's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Susan $5.45 per pound, and type B coffe costs $4.05 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $633.60.

Required:

We need to find that how many pounds of type A coffee were used

Step-by-step explanation:

Let

a is pound of A coffee used

b is pound of B coffee used

By given statement


b=3a

and also


5.45a+4.05b=633.6

from both equation


\begin{gathered} 5.45a+12.15a=633.6 \\ 17.6a=633.6 \\ a=36 \end{gathered}

Final answer:

36

User Max Sorin
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