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Dvinal [7]
3 years ago
9

The width of a rectangle is 8 inches shorter than its length. The perimeter of the rectangle is 18 inches. What are the length a

nd width? Which equation models this problem? A. 8 • l = 18 – 8 B. 2l + 2(l – 8) = 18 C. l + (8 + 2l) = 18 D. l(l – 8) = 18
Mathematics
1 answer:
VashaNatasha [74]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Let length be l

Width, w=l-8

Perimeter = 2(l+w) = 2l+2w

2l+2(l-8)=18

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During the summer, you work 30 hours per week at a gas station and earn $8.75 per hour. You also work as a landscaper for $11 pe
Lena [83]
You need to work about 12.5 hours because from your gas station job, since you work 30 hours every week, times that by 8.75$ which equals 262.5$ at the end of the week, so subtract 262.5 from 400 which is 137.5, then you need to dived that by 11 since its $ per hour, after doing that you get 12.5 hours, so you would have to work 12.5 hours at your landscaper job
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2x² + 166 +30
Darya [45]

Answer:

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3 years ago
The following table shows a proportional relationship between mmm and nnn.
Marina CMI [18]

Answer:

70707mmm = 111nnn

Step-by-step explanation:

Using the basic equation of a line:

y = mx + c;. where m is slope and c is intercept on y axis.

Let mmm = y and nnn = x

(i) 333 = 212121m + c

(ii) 555 = 353535m + c

Making c the subject of the formula in both (i) and (ii)

c = 333 - 212121m = 555 - 353535m

353535m -212121m = 555 - 333

141414m = 222

m = 111/70707

Substitute in (i) above

c = 333 -333 = 0

Hence; y = 111/70707x + c

Finally, mmm = 111/70707 nnn

i.e. 70707mmm = 111nnn

Hope this helps.

5 0
3 years ago
Read 2 more answers
What is the factored form of the polynomal? x2-12x+27
lianna [129]

Answer:

The answer is (x-9) (x-3).

Step-by-step explanation:

This is because when you multiply them together you get

x^{2}, -9x, -3x, and 27

When you add the like terms you get,

x^{2} - 12x +27

6 0
3 years ago
What does the quantity 28-8 represent?
nikklg [1K]
You question implies simple subtraction is needed:

28-8=20
5 0
2 years ago
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