How to translate word problems and solve

20) 9x - 3

21) 9x + 60

22) 4x - 10

Tip: when it says "___ more/less than," at the beginning you add it at the end.

Step-by-step explanation:

23) 190 = .10x + 15.      x = the amount of copies you get for $190.

subtract 15 from both sides.

175 = .10x

divide by .10 on both sides.

1750 = x. You can get 1750 copies for $190.

24) 150w + .10m = 190.     m = miles   (w = week)

150 + .10m = 190

subtract 150 from both sides

.10m = 40

divide .10 on both sides.

m = 400. You can drive 400 miles in one week for $190.

25) Here we have to work backwards. Start off with a 1 variable equation. Since L = 2w + 2, let's replace that for the length.

P = 2w + 4w + 4. (4w + 4 because perimeter is 2l + 2w, you have to double the length as well)

Add the w's together and input known values.

124 = 6w + 4

Subtract 4 on both sides

120 = 6w

Divide 6 on both sides

20 = w.

Now we will find the length since we know the width using the equation:

124 = 2(20) + 2L

124 = 40 + 2L

Subtract 40 on both sides

84 = 2L

Divide 2 on both sides

42 = L.

26) Do the same thing as 25.

162 = 2w + 2(w + 63)

162 = 2w + 2w + 126

162 = 4w + 126

Subtract 126 on both sides

36 = 4w

Divide 4 on both sides

9 = w.

9 + 63 = L

72 = L

Hope this helps.

after simplifying it i got: -36.25 as my answer. hope that !

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step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)