Traci T.

Mathmatics Instructor

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Geometry

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Question:

A pizza you had delivered has a radius of 7 inches. You ate 1/4 of the pizza. What is the area of amount pizza you have left?

Traci T.

Answer:

I have 75% of my pizza left. The entire pizza would of had an area of pir^2 = 153.94. I can multiply that by 0.75 153.94 x 0.75 = 115.46 square inches of pizza left.

Pre-Algebra

TutorMe

Question:

Many new songs on iTunes costs 0.99. If you wanted to purchase 7 of these songs, how much would it cost total?

Traci T.

Answer:

7 songs @ $0.99 each = 7 x 0.99 = 6.93 total.

Algebra

TutorMe

Question:

Given the equation y=3x - 7, state the y- intercept and slope of the line. Describe how you would graph this line.

Traci T.

Answer:

Y= mx + b, so the 3 represents the slope and the -7 represents the y intercept. This line can be graphed by placing a point at (0 , -7) then I would count up 3 spaces and to the right 1 space, placing another point at (1, -4). I would connect those dots and extend my line through them.

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