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Chapter 3: Q. 189 (page 352)

Maria spent \(12.50at the post office. She bought three times as many \)0.41 stamps as $0.02 stamps. How many of each did she buy?

Short Answer

Expert verified

The number of $0.41stamps are 30and the number of $0.02stamps are10.

Step by step solution

01

Step 1. Given Information 

Total amount=$12.50

Cost of first stamp=$0.41

Cost of second stamp=$0.02

02

Step 2. Naming the variables   

Let the number of $0.02stamps be x.

Maria bought three times as many $0.41stamps as$0.02 stamps.

Therefore, number of$0.41 stamps =3x

03

Step 3. Creating the table  

The required table is

04

Step 4. Solving the equation 

Translating into equation we get,

0.41(3x)+0.02(x)=12.50鈬�1.23x+0.02x=12.50鈬�1.25x=12.50鈬�x=12.501.25鈬�x=10鈭�(3x)=3(10)鈬�3x=30

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