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3 years ago

Help plz:)))I’ll mark u Brainliest

Mathematics

1 answer:

frez [133]3 years ago

3 0

It’s 15/30=x/34
you divide 15/30 gives you 1/2 then you multiply by 34 gives you 17 thats your answer
x= 17

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The histogram shows informstion about how 550 peopel travel to work

irina [24]

Answer:

1) 100 ) 15

Step-by-step explanation:

1) 30 to 50 is 20 miles so 5 * 20 is 100

2)20 to 50 is 30 miles so its 150 and 15 to 20 is 5 so 11 *5 is 55

55+150 equals 250 so the answer is 15 miles.

4 0

3 years ago

What is the constant of variation,k, of the direct variation,y=kx,through (5,8)

grigory [225]

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $\frac{y}{x}=k$ or $y=kx$

where

k is the constant of variation

in this problem we have

the point $(5,8)$

$x=5\\y=8$

substitute

$\frac{y}{x}=k$

$\frac{8}{5}=k$

therefore

the answer is

$k=\frac{8}{5}$

8 0

3 years ago

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If 3w - 5 = -27, what is the value of w? A -32/3 B 3/32 C 22/-3 D 3/22

tiny-mole [99]

C 22/-3
You use the the equation to plug it in and c is the only fraction that plugs in and equals -27.

3 0

3 years ago

Find an equation of the circle that satisfies the given conditions.

hodyreva [135]

The equation of a circle:
$(x-h)^2+(y-k)^2=r^2$
(h,k) - the coordinates of the centre
r - the radius

The midpoint of the diameter is the centre of a circle.
The coordinates of the midpoint:
$(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$
(x₁,y₁), (x₂,y₂) - the coordinates of endpoints

$P(-1,1) \\
x_1=-1 \\ y_1=1 \\ \\ Q(5,9) \\ x_2=5 \\ y_2=9 \\ \\
\frac{x_1+x_2}{2}=\frac{-1+5}{2}=\frac{4}{2}=2 \\ \frac{y_1+y_2}{2}=\frac{1+9}{2}=\frac{10}{2}=5$

The centre of the circle is (2,5).

The radius is the distance between an endpoint of the diameter and the centre.
The formula for distance:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$(-1,1) \\ x_1=-1 \\ y_1=1 \\ \\ (2,5) \\ x_2=2 \\ y_2=5 \\ \\ d=\sqrt{(2-(-1))^2+(5-1)^2}=\sqrt{3^2+4^2}=\sqrt{9+16}=\sqrt{25}=5$

The radius is 5.

$(x-2)^2+(y-5)^2=5^2 \\
\boxed{(x-2)^2+(y-5)^2=25}$

4 0

2 years ago

A number is divided by four. The result is divided by

Vikentia [17]

The original number is 24
2 x 3 = 6
6 x 4 = 24
or
24 / 4 = 6
6 / 3 = 2

4 0

3 years ago

Read 2 more answers