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Sarah and Owen Herbert purchased 26 stamps, a mixture of 49 cents and 34 cents stamps. Find the number of each type of stamp if they spend $11.39

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Let
A be the number of 49 cent stamps bought and
B be the number of 34 cent stamps bought. We can set up the following equations using the information above:


A + B = 26


0.49A + 0.34B = 11.39

Substituting the first equation into the second equation will give you the following:


0.49(26 - B) + 0.34B = 11.39

Solving for B will give you the number of 34 cent stamps purchased, and then you can figure out the number of 49 cent stamps purchased.
User RohitWagh
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