4. Write a system of two equations in two variables that canbe used to solve the

Question

4. Write a system of two equations in two variables that canbe used to solve the following problem. State what each variablerepresents. DO NOT solve. Rosa bought some 18 cent stamps and some 32 cent stamps,paying a total of $4.28. There were four more 32 stamps than 18cent stamps. How many did she buy of each? 4. Write a system of two equations in two variables that canbe used to solve the following problem. State what each variablerepresents. DO NOT solve. Rosa bought some 18 cent stamps and some 32 cent stamps,paying a total of $4.28. There were four more 32 stamps than 18cent stamps. How many did she buy of each?

Explanation / Answer

A = # of 32 cent stamps B = # of 18 cent stamps A + 4 = B    (four more 32 stamps than 18stamps) .32A + .18B = 4.28   (32 cents * A # of stamps + 18 cents* B # of stamps = 4.28)

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