You need to save up to buy a video game system that costs a total of $440 with tax. You currently have $60 in your piggy bank. Your parents will give you $20 per week for allowance and you can work 5 hours per week and make $15 per hour. How many weeks will it take to save up enough money to buy the video game system? Set up an equation and show all steps as you solve the problem.
Let's assume it will take "x" weeks to save enough money to buy the video game system.
The amount of money the person gets from their allowance per week is 20x.
The person will make 5 * 15 = $<<5*15=75>>75 per week working.
The total amount of money they have is 60 + 20x + 75x
440 = 60 + 20x + 75x
Combining like terms, we get:
440 = 60 + 95x
Subtracting 60 from both sides, we get:
380 = 95x
Dividing both sides by 95, we get:
x = 4
Therefore, it will take 4 weeks to save enough money to buy the video game system.
a) Describe how you know that a graph is proportional.
b) Describe how you know an equation is proportional. Give an example of an equation that is proportional and a graph that is not proportional.
c) Describe how you know that a table is proportional.
Math