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Vikki [24]
3 years ago
15

The perimeter of a rectangle is 30 inches. If it’s length is 3 times its width, find the dimensions

Mathematics
1 answer:
Molodets [167]3 years ago
8 0
2(3x +x)=30
8x = 30
x =3.75 = width
3x = 11.25 = length

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Wayne and Winston are scuba diving and are ascending to the surface. The function y = 30x − 105 represents Wayne’s elevation in
arsen [322]
The function that represents Wayne´s elevation:
y = 30 x - 105
The function that represents Winston´s elevation:
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b = -100
-16 = 3m - 100
3 m = 84
m = 84 : 3 = 28
y = 28 x - 100
Surface level: y = 0
Wayne:
0 = 30 x - 105
x = 3.5 minutes
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If they both ascend at the same rate, Wayne will be first to the surface.
5 0
4 years ago
Add.<br> (3х – 4) + (4х – 6)<br><br> А. 7х+ 10<br> В. 7х+2<br> C. 7х- 2<br> D. 7x - 10
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3 years ago
In 2001, the value of a plot of land is $12,000. Each year, the value of the plot increases by 8%.
olga2289 [7]
F(x)=12,000(1.08)^x

The answer is the first equation.
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8 0
3 years ago
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Keith bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He pa
ss7ja [257]

Answer: desktop = $1750, laptop = $1900

<u>Step-by-step explanation:</u>

Let x represent the cost of the desktop

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5 0
3 years ago
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elena-s [515]

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6 0
2 years ago
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