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stepladder [879]
3 years ago
15

DE is the perpendicular bisector of AC. Find AC.

Mathematics
1 answer:
Masja [62]3 years ago
7 0

Answer:

Step-by-step explanation:

It is hard to read but (5x - 2) + (7x - 9)  =  AC    also  5x - 2   =   7x - 9

    5x - 2 = 7x - 9         subtract 5x from both sides then add 9 to both sides

5x - 5x - 2 + 9  = 7x - 5x - 9 + 9

   -2 + 9 = 7x - 5x

          7  =  2x

        3.5  =  x

    5x - 2 = 7x - 9    

         3   ≠    -2                        when x = 1

         8   ≠     5                        when x = 2

        13   ≠    12                        when x = 3

     15.5   =    15.5                     when x = 3.5

        18   ≠    19                        when x = 4

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Which expressions equal 9 when x=4 and y=1/3
Maslowich
B.
4 \times 2 = 8
3 \times  \frac{1}{3}  = 1
8 + 1 = 9
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3 years ago
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3 years ago
When the movie is half over, popcorn sells for half price. Full price popcorn is $3.50, and drinks are $1.35. Determine the cost
Nady [450]
Full price of popcorn: $3.50 
Price of popcorn after half the movie: $1.75
price of drinks: $1.35 

The question is....."Determine the cost for purchasing 3 orders of popcorn and 3 drinks when the movie is half over." 

$1.75*3=$5.25
$1.35*3=$4.05

the price of the 3 orders of popcorn would be $5.25 
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Hope this helps! :) 
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3 years ago
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Cooper earned $228.00 at his job when he worked for 10 hours. How much money did he earn each hour?
mote1985 [20]

Answer:

Cooper made $22.80 per hour.

Step-by-step explanation:

Since Cooper made a total of $228.00 within 10 hours, the money he made each hour is equivalent to the rate of change. That means that in order to get the amount of money made in one hour, you must first turn the ten hours into one using division. Since you divided ten into one using division, you divide the $228.00 by ten using division.

228 divided by 10 is 22.8, therefore Cooper is making $22.80 per hour.

5 0
3 years ago
Im just gonna give away all the points I earn today from helping out so here you go :)
ycow [4]

Answer:

Thank you I need that

Step-by-step explanation:

4 0
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