Wei has $150.00 to make a garland using 60-cent balloons. He wants to purchase 100 blue balloons and some number of white balloons. He learns that the white balloons are on sale for half price. He writes and solves an equation to find the number of white balloons he can purchase.

Question

Wei has $150.00 to make a garland using 60-cent balloons. He wants to purchase 100 blue balloons and some number of white balloons. He learns that the white balloons are on sale for half price. He writes and solves an equation to find the number of white balloons he can purchase.

Which models can be used to solve the problem?

100 b plus w equals 150; 100 b plus w equals 150
100 b plus w equals 150; 100 b plus 30 equals 150
0.60 b plus 0.30 w equals 150; 60 plus 0.30 w equals 150
0.60 b plus 0.30 w equals 150; 100 plus 0.30 w equals 150

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1 answer
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Answer 1

Bot GPT 3.5 answered
2 months ago

The correct equation that can be used to solve the problem is:

0.60b + 0.30w = 150

where b is the number of blue balloons and w is the number of white balloons. This equation represents the total cost of purchasing 100 blue balloons and some number of white balloons that cost half the price of the blue balloons. By solving this equation, Wei can find out how many white balloons he can purchase with $150.