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brilliants [131]
3 years ago
5

How do we solve a proportion? ​

Mathematics
1 answer:
nikitadnepr [17]3 years ago
5 0

Answer:

Step-by-step explanation:

a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying. Ex

3

(2)(9)

​

x

=

18

3

=

6

x=

3

18

​

=6

If I have to , I'll include my fractional equation with the arrows. answer is:

x = 6

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Point C is the midpoint of a segment AB . What are the coordinates of point B, if: A(–1, 3), C( 1, –1)
a_sh-v [17]

Answer:

(3,-5)

Step-by-step explanation:

To find the x coordinate of the  midpoint, add the  x coordinates together and divide by 2

The x coordinate is

(x1+x2)/2

We know one point and the midpoint

( -1+x)/2 = 1

Multiply by 2

-1 +x = 2

Add 1

x =2+1

x=3

To find the y coordinate of the midpoint, add the  y coordinates together and divide by 2

The y coordinate is

(y1+y2)/2

We know one point and the midpoint

(3+y)/2 = -1

Multiply by 2

3+y = -2

Subtract 3

y = -2-3

y =-5

The other endpoint is (3,-5)

5 0
3 years ago
Read 2 more answers
Write in slope-intercept form and show work:<br> 6x + 4y = 700
Basile [38]
6x + 4y = 800
-6x -6x
--------------------
4y = -6x + 800
÷4 ÷4 ÷4
---------------------
y = -6/4x + 200

First subtract, then divide, and then you have it. 6/4 is your slope. Your rise is -6 and your run is 4.
4 0
3 years ago
40% of a number is 68.What is the number?
Talja [164]
The number is 17 hope it helps

7 0
3 years ago
How do you find the circumference of a circle with a radius of 4?
goldenfox [79]
Circumference of a circle = 2πr
C = 2π(4)
C = 8π
C = 8 * 3.14 = 25.12

In short, Your Answer would be 25.12

Hope this helps!
6 0
3 years ago
4/6 is equivalent to what fraction?
rusak2 [61]
It is equivalent to 4/6 so yeah yay.

6 0
3 years ago
Read 2 more answers
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