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subtract 2 from -7...that gives you -9, then divide -9 by -3. X = 3

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To find the whole, divide the part and the percent. Always but the part as the numerator and the percent as the denominator. 49/35% = 140 total apartments at Stoneridge.

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Picture a circle, the length from one side to the next is 20. Now picture just the edges being cut off, the length from one side to next is still 20. Now you know the length is 20 and the area is 90
The formula to find the area of a rectangle is A = L(W)
90 = 20W (now divide 90/20)
the width is 4.5. The dimensions are 4.5 and 20

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Area of rectangle is found by multiplying its length by its width.
Find numbers you can multiple together to get 440. Start by dividing 440 by different whole numbers. For example 440/2 = 220 so one possible dimension is 2 and 220. 440/5 = 88 so another possible dimension is 5 and 88.

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First, find the slope using the points. Slope (M) = y2-y1/x2-x1
(2,113) (5,209)
M = (209-113)/(5-2)
= 96/3
= 32
Now pick a point, say (2,113). Plug in the x,y and m values in the equation and solve for b
113 = 32(2) + b
113 = 64 + b
113-64 = 64-64+b
49 = b
Your equation is C = 32n + 49
The cost for 4 days...just plug in 4 for n. Multiply 4 times 32 and add that to 49
C = 32(4)+49
C = 177

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This can be written as a linear equation in the form of y=mx+b
The pizza cost starts at 5.50, this is your y-intercept
You are charged .85 for each topping. So your slope is $.85t
A. The equation is C = $.85t + $5.50
B. You have 3 toppings so substitute in 3 for t in the equation.

C =.85(3)+ 5.50
C = $8.05

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y=mx+b
-7=(2/3)(7)+b
-7=4.67+b (subtract 4.67 from both sides)
-11.67=b
y=(2/3)x-11.67

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-2

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An equilaterial triangle means all the sides are equal So if 1 side is 84 then the other two sides are 84 also.
84 + 84 + 84 = 252mm

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First you need to put your equation in slope intercept form which is y = mx + b
6x-5y=4 (subtract 6x from both sides)
-5y=4-6x (divide both sides by -5; so divide 4 by -5 and -6 by -5)
y=(-4/5)+1.2x
We know that parallel lines have the same slope so the slope of your new line will be 1.2x.
Now solve for b by using the point you were given in the problem (6,-4)
y=mx+b
-4=1.2(6)+b
-4=7.2+b (subtract 7.2 from both sides)
-11.2 = b
The answer is y=1.2x-11.2

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the problem says the height is half the base. The base is 16 so half of that is 8. This means the height is 8.
The formula to find the area of a triangle is A = (1/2) x base x height
Now plug in the information you know.
A = (1/2) x 16 x 8
A = 64 inches

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V = length x width x height
you know that V = 144
W = 2
H = 6
Now plug in the values your know
144 = L x 2 x 6
144 = L x 12
Divide both sides by 12 to get L by itself
144/12 = (L x 12)/12
12 = L
Length of the box is 12 centimeters.

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A = (1/2) x base x height
You know A = 4
B = 2.5
Now plug in the values into the equation
4 = (1/2) x 2.5 x H
4 = 1.25 x H
Divide both sides by 1.25 to get height by itself
(4/1.25) = (1.25 x H)/1.25
3.2 = H
The height of the triangle is 3.2 meters