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sattari [20]
2 years ago
10

20 is what percent of 800?

Mathematics
2 answers:
notsponge [240]2 years ago
8 0
800 is 100% so 20 is 40% of 800.
solmaris [256]2 years ago
8 0

40% of 800.,.,.,.,.,.,,.,.,.,.,.

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uysha [10]
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190 divided by 95 simplified
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190 divided by 95 is 2. 
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Write the number in two other forms
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3 years ago
8) through: (-3, -2), perp. to y = x – 1<br> A) y=-5x – 1 B) y=-4x – 5<br> C) y=-x – 5 D) y=-5x – 4
nexus9112 [7]

<u>Answer:</u>

The equation through (-3, -2) and perpendicular to y = x – 1 is y = -x -5 and option c is correct.

<u>Solution:</u>

Given, line equation is y = x – 1 ⇒ x – y – 1 = 0. And a point is (-3, -2)

We have to find the line equation which is perpendicular to above given line and passing through the given point.

Now, let us find the slope of the given line equation.

\text { Slope }=\frac{-x \text { coefficient }}{y \text { coefficient }}=\frac{-1}{-1}=1

We know that, <em>product of slopes of perpendicular lines is -1. </em>

So, 1 \times slope of perpendicular line =  -1

slope of perpendicular line = -1

Now let us write point slope form for our required line.

\mathrm{y}-\mathrm{y}_{1}=\mathrm{m}\left(\mathrm{x}-\mathrm{x}_{1}\right)

y – (-2) = -1(x – (-3))

y + 2 = -1(x + 3)

y + 2 = -x – 3

x + y + 2 + 3 = 0

x + y + 5 = 0

y = -x -5

Hence the equation through (-3, -2) and perpendicular to y = x – 1 is y = -x -5 and option c is correct.

8 0
3 years ago
Which is bigger, 7/8 or 9/10
Nonamiya [84]
9/10 is the answer. 7/8 is 70/80 and 9/10 is 72/80
7 0
3 years ago
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