3y - 2x = 9 slope intercept form

Mathematics

1 answer:

Alchen [17]3 years ago

5 0

Answer:

$y=\frac{2}{3}x+3$

Step-by-step explanation:

$3y-2x=9\\\\3y=2x+9\\\\y=\frac{2}{3}x+3$

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The length of a rectangle is five inches less than twice it’s width. If the rectangle has a perimeter of 80 inches, find the len

yawa3891 [41]

Answer:

Width of the rectangle = 15 inches

Length of the rectangle = 25 inches

Step-by-step explanation:

Let the width of the rectangle = k inches

So, the length of the rectangle = (2k -5) inches

Perimeter = 80 in

Perimeter of a rectangle = 2 (Length + Width)

⇒ 80 = 2(k + (2k -5)

or 80 = 6k - 10

⇒ 6k = 80 + 10 = 90

or k = 90 / 6

⇒ k = 15

So the width of the rectangle = k = 15 inches

And the length of the rectangle = 2k -5 = 2 x 25 - 5 = 25 inches

5 0

3 years ago

(a) If cos² (34°) - sin² (34°) = cos(A°),then<br> A =<br> degree’s

krok68 [10]

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