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100
5 + (-7) = ?
-2
100
Identify: terms, like-terms, coefficients, and constants. -2x + 6x + (-5y) + 7
terms: -2x, 6x, -5y, 7 like-terms: -2x and 6x coefficients: -2, 6, -5 constants: 7
100
simplify: 2x < 6
x<3
100
Is the relationship proportional? x y 3 5 6 10 9 15 12 20
yes
100
What is the radius of a circle if its diameter is 16 inches?
8 in
200
-3(-6) =?
18
200
Identify: terms, like-terms, coefficients, and constants. -x + -5b - 5x + (-6b) - 9
terms: -x, -5b, -5x, -6b, -9 like-terms: -x and -5x; -5b and -6b coefficients: -1, -5, -5, -6 constants: -9
200
Simplify: 3x - 5 > 10
x > 5
200
Find the constant of proportionality. Number of hours x 2 5 9 10 13 16 Amount of water y 26 65 117 130 169 208 (in liters)
13 liters per hour
200
Find the circumference of a circle with a radius of 14 cm. Use 22/7 for pi.
44 cm
300
-2/5 + (- 3/10) = ?
-7/10
300
Simplify: 3x + 6y - 7x + (-9y ) + (-2x) -8
-6x + (-3y) + (-8)
300
Simplify: 5x - 6 > 14
x > 4
300
Write the equation to show the relationship for the following data Number of people x 2 4 6 Cost $ y 15 30 45
y = 7.5x
300
Find the perimeter of a running track that is composed of a rectangle with length of 100 m and two semicircles with the radius of each 32 m.
The perimeter is about 400.96 m.
400
-0.6 / 0.3 =?
-2
400
Solve for x: 5(2x+7) = 55
x=2
400
Simplify: -3x - 7 < 20
x > -9
400
Fill in the missing data weight (lbs) x 0 1/2 1 1 1/2 2 1/4 cost ($) y 0 4 12 16 18
weight (lbs) x 0 1/2 1 1 1/2 2 2 1/4 cost ($) y 0 4 8 12 16 18
400
Find the area of the circle with a diameter of 56 millimeters.
about 2461.76 sq.mm.
500
-4/5 * 0.9 =?
-0.72 or -18/25
500
Solve for x: -6x / 5 +9 = 15
x = -5
500
Simplify: -6x + (-5) > 3x +22
x<-3
500
A model of a skyscraper is made so that 1 inch represents 75 feet. 1) What is the scale factor? 2) What is the height of the actual building if the height of the model is 18 inches?
1) 75 2) 1350 ft
500
Find the area of the portion of the basketball court that is displayed on the board. It is made up of a rectangle with a length of 19 ft and a width 12 ft. The width of the rectangle is also half of the circle with its center located on it.
The area is about 284.52 square feet.