Explain in your own words what it means for an equation to model a real world situation an give an example.

I am on a limited budget for a long weekend to Maine. I have $100 and I have budgeted 40% for gas. My car is on empty and it gets 20 MPG. The average price of gas is $3.00 per gallon and the round trip to Maine is 300 miles. Do I have enough in my budget for Maine or am I going to have to change my plans and go to New Hampshire?

b=budget g=gas for roundtrip
c=cost of gas for roundtrip

c=g x 3.00

equation is c < b
yes=going to Maine
no=not going to Maine

What is my budget for gas?
b = budget

b = 100 x .40 b = 40

How many gallons of gas will I use roundtrip?
g = gas

g = 300/20 g = 15

What is the total cost for gas?
c = cost

c = 15 x 3.00 c = 45.00

Is c < 40.00

Looks like I am not going to Maine

first do 40% off 100

it is 45.00

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