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Otrada [13]
2 years ago
6

How to solve proportions

Mathematics
1 answer:
Delicious77 [7]2 years ago
6 0

Step-by-step explanation:

stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying, and solving the resulting equation

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In the figure below, C is between A and D, and B is the midpoint of AC. If AD=20 and BC=6, find CD.
Leokris [45]

Answer:

8

Step-by-step explanation:

AC and BC are the same, so both equal 6

6+6 is 12

Subtract 12 from 20

20-12=8

CD is 8

8 0
3 years ago
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Find the slope of the line passing through these points: (5,2) and (-10,12)
Marat540 [252]

Answer:

-2/3

Step-by-step explanation:

The slope of a line is found by

m= (y2-y1)/(x2-x1)

   = (12-2)/(-10 -5)

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3 0
3 years ago
What is the solution to the equation -√(15+x)=-3?
marin [14]
So, the negative would be divided out to make it 3, then square both sides to get rid of the square root and get 9, then subtract 15 and you get -6.  <span />
7 0
2 years ago
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Hi there!<br><br> Can you help me please? Thanks! <br><br> Please explain
Bingel [31]
H=-t^2+95
The y intercept here is 95, and it represented from where the boy threw the ball.

If he threw it from 95 ft above the ground, the best answer for where he is is on a bridge.
His backyard is at 0 ft (sea level). An underground cave is below sea level. A ladder is probably not 95 ft.

Final answer: D
5 0
3 years ago
If you make 1170 points out of 1800 what grade would I have​
insens350 [35]

Answer:

req grade=35%

Step-by-step explanation:

req grade=\frac{1800-1170}{1800}\times100

req grade=\frac{63000}{1800}

req grade=35% answer

5 0
3 years ago
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