Answer:
10 model cars
Step-by-step explanation:
1. We must find the cost of 3 wheels, so we can add it to the cost of the other materials.
.50 × 3 = 1.50
2. We will now add the cost of the other materials to the cost of 3 wheels. This will give us the total cost of each car they build.
1.50 + 1.25 = 2.75
3. Now, we will divide 30 by 2.75. This is because dividing 30 by 2.75 will show us how many times 2.75 can go into 30, essentially how many times they can purchase the total materials needed to make a model car.
30/2.75 = 10.9090909....
4. Lastly we will remove the decimal from the 10. This is because the .909090.... represents them purchasing about 90% of the materials they need instead of another whole one because they ran out of money.
10 model cars can be made
