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3 years ago

8

In the auditorium there are 27 red chairs and 63 blue chairs. what is the ratio of the number of red chairs to the number of blu

e chairs?

1 answer:

GuDViN [60]3 years ago

3 0

27:63
divide both sides by 9
your answer is 3:7

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Firdavs [7]

Answer:

(–10, –2), (6, 6)

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

<u><em>Verify each case</em></u>

case 1) (5, –4), (–2, 1)

substitute in the formula

$m=\frac{1-(-4)}{-2-5}$

$m=\frac{1+4}{-2-5}$

$m=\frac{5}{-7}$

$m=-\frac{5}{7}$ ----> the slope is negative

case 2) (6, –10), (2, 10)

substitute in the formula

$m=\frac{10-(-10)}{2-6}$

$m=\frac{10+10}{2-6}$

$m=\frac{20}{-4}$

$m=-5$ ----> the slope is negative

case 3) (–10, –2), (6, 6)

substitute in the formula

$m=\frac{6-(-2)}{6-(-10)}$

$m=\frac{6+2}{6+10}$

$m=\frac{8}{16}$

$m=0.5$ ----> the slope is positive

case 4) (5, –1), (–6, 6)

substitute in the formula

$m=\frac{6-(-1)}{-6-5}$

$m=\frac{6+1}{-6-5}$

$m=\frac{7}{-11}$

$m=-\frac{7}{11}$ ----> the slope is negative

3 0

2 years ago

It is 2.8km from David’s house to the nearest mailbox. How far is it in meters?

Ganezh [65]

Solution

Distance in km = 2.8 km

Distance in m = 2.8 x 1000m

Distance in m = 2,800m

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3 months ago

Can you please help me solve this equation? x+9−3≤14

aleksley [76]

X+9-3≤14

Add 3 to the other side. (do the inverse of subtraction)

x+9≤17

Subtract 9 on both sides. (the inverse of addition)

x≤8

I hope this helps!
~kaikers

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2 years ago

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svetlana [45]

$\sqrt{12 {x}^{3} } = {12}^{ \frac{1}{2} } {x}^{ \frac{3}{2} }$

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2 years ago

How to covert 11 pi over 12 to degrees

Readme [11.4K]

When you convert 11pi over 12 in to degrees, you get 165°

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2 years ago