3 years ago

4x=8-2y, write the equation of the perpendicular line?

Mathematics

1 answer:

ASHA 777 [7]3 years ago

8 0

Answer:

x=2-1/2y

Step-by-step explanation:

4x=8-2y

Divide both sides by 4 to get x by itself.

You're left with x=2-1/2y.

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The area of a rectangular wall of a barn is 85 square feet. Its length is 12 feet longer than the width. Find the length and wid

MaRussiya [10]

Answer:

Length = 17 feet, Width = 5 feet

Step-by-step explanation:

Given:

The area of a rectangular wall of a barn is 85 square feet.

Its length is 12 feet longer than the width.

Question asked:

Find the length and width of the wall of the barn.

Solution:

Let width of a rectangular wall of a barn = $x$

<u>As length is 12 feet longer than the width.</u>

Length of a rectangular wall of a barn = $12+x$

As we know:

$Area\ of\ rectangle=length\times breadth$

$85=(12+x)x\\\\85=12x+x^{2} \\$

Subtracting both sides by 85

$x^{2} +12x-85=0\\x^{2} +17x-5x-85=0\\Taking\ common\\x+(x+17)-5x(x+17)=0\\(x+17)(x-5)=0\\x+17=0, x-5=0\\x=-17,x=5$

As width can never be in negative, hence width of a rectangular wall of a barn = $x$ = 5 feet

Length of a rectangular wall of a barn = $12+x=12+5=17\ feet$

Therefore, length and width of the wall of the barn is 17 feet and 5 feet respectively.

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4 years ago

1 over 2 added to 2 over 5

Natalka [10]

1/2 + 2/5 = 5/10 + 4/10 = 9/10

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The shelf life, in days, for bottles of a certain prescribed medicine is a random variable having the density function shown b

Vlad [161]

Help answer my question ?

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3 years ago

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What does 2+2 equal

lisabon 2012 [21]

2+2=4

a^2+b^2=c^2
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4 years ago

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12x+15y=-45 put into slope-intercept form, simplify all fractions.

Karo-lina-s [1.5K]

Answer:

y = -4/5 x - 3

Step-by-step explanation:

15y = -45 - 12x

5y = -15 - 4x

y = -4/5 x - 3

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2 years ago