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pav-90 [236]
3 years ago
13

PLEASE HELP ME IM TIMED!!

Mathematics
1 answer:
Olin [163]3 years ago
5 0
1.
(7x + y) - (5x + 2y)  \\  = (7x - 5x) + (y + 2y) \\ =  2x + 3y
The value of B is 3


2 .
(8x + 5y) - (2x - 3y) \\  = (8x - 2x) + (5x - 3y) \\  = 6x + 2y
The value of B is 2
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What is a equation that equals 15 ?
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The length of a rectangle is four time its width. If the permeter of the rectangle is 100yd, find i t s length and width.​
seropon [69]

Answer:

So let us call the shorter side, i.e the width: 'x'

So each length is four times the width = 4x

The perimeter consists of two widths and two lengths and equals 50 inches.

So:

x+x+4x+4x=50

solve for x:

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Step-by-step explanation:

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3 years ago
Identify the y-intercept from the verbal situation: A store earns $3 per cup sold after initially losing $100 as a start up fee.
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A right triangle. If AC = 7 and BC = 8, find AB. Leave your answer in simplest radical form.
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We don't know whether those two sides are both legs
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If  AC  and  BC  are both legs, then

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If  BC  is the hypotenuse of the right triangle, then

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8 0
4 years ago
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