# Maths Story board

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#### Storyboard Description

Mr. Awesome helps two students with a maths problem.

#### Storyboard Text

• One gallon of milk costs \$3.09 and a half gallon costs \$1.65. I wounder how much one quart costs.
• I don't know how we could figure this out. Let's go ask our maths teacher, Mr. Awesome, for help!
• We need help with a maths problem.
• Use the equation y=mx+b to help. First find the slope and substitute "m" for that number. You should get y=0.72x+b. This means that the price increases 72 cents per quart. Next solve for "b" by filling in the values for x and y from your problem. For example 3.09=0.72(4)+b.
• Once you found that "b" is equal to 1.21. You have the equation y=0.72x+1.21. Now, use this equation to tell me how much a 3 gallon carton would cost.
• y=0.72(12)+1.21 y=8.64+1.21 y=9.85
• A 3 gallon carton would cost \$9.85
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