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

Answer 1

@maydinl this is for the question you asked in the all subjects chat:

To write a two-variable equation, I would first need to know how much Maya’s allowance was. Then, I would need the cost of playing the arcade game and of riding the Ferris wheel. I could let the equation be cost of playing the arcade games plus cost of riding the Ferris wheel equals the total allowance. My variables would represent the number of times Maya played the arcade game and the number of times she rode the Ferris wheel. With this equation I could solve for how many times she rode the Ferris wheel given the number of times she played the arcade game. I hope this helps! ^-^