7th Math
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Proportion Plus
100
how do you calculate the mean (average) of a set of numbers?
add them all up and divide by the total of numbers
100
Simplify
-2 (3x -5 ) + 4
- 6x + 14
100
What is the constant of proportionality formula?
K = y/x
100
-87 + 3
-84
100
What are the steps for finding the area of a composite shape?
200
-17+32=
15
200
It takes Leslie 40 minutes to pick 54 apples from a tree. If it takes Leslie the same amount of time to pick apples from each tree in an orchard, how would you describe her unit rate?
Leslie picks 1.35 apples every minute
200
What is the area of a circle formula?
A = pi r2
200
What are the steps for finding the area of a composite shape?
1. identify the shapes involved so you can use the correct formulas.
2. find the area of each shape
3. add them all together
4. use the correct unit measurement with a square
200
Choose a questions from the room! Bonus 200 points
Nice!
300
-4 x 2 1/2=
-10
300
What is the value of x?
5x + 3 = -2
-1
300
What is formula for area of a triangle?
A= b X h
2
300
Calculate the radius if the Circumference is 590 cm
94 cm
300
Choose a question from the room! Bonus 200 points
Nice!
400
A map of a farm has a scale of 1 inch = 6 miles. The dimensions of the map are 7 inches by 12.5 inches. What is the actual area of the farm?
What is 3,150 square miles?
400
Molly picks 3/4 pound of grapes in 2/8 hour. How many pounds of grapes is Molly picking per hour?
What are 3 pounds per hour?
400
What is the formula for the circumference of a circle?
C = Pi Multiplied by diameter
or
C = 2 times pi times radius
400
What do you look for when you are solving for an inequality?
Any reason to flip the sign:
1. Multiplying by a negative number OR
2. Dividing by a negative number
ONLY!!
400
What % of an hour would Tina spend grading papers if she graded 100 papers in 2 hours?
50%
500
A pair of shoes is 110.00. They are on sale for 20% off. If you have to pay 7% sales tax after the discount. What is the total cost of the shoes?
$94.16
500
Two angles are complementary one measures 2x + 10 and the other 48 degrees. What could be the value of x?
16
500
What is the formula for the volume of a triangle prism?
V = Area of the Base x the height of the prism
500
2 X (-4) + 3
-5
500
Sam spends 25% of an hour mowing his 500 acre plot. How much of the 500 acres did he mow in this time period? How much is left?
125 acres with 375 acres left