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Dovator [93]
3 years ago
7

22+63 is the same as 20 +

Mathematics
2 answers:
Vesnalui [34]3 years ago
7 0
65. 22+63=85. 85-20=65
puteri [66]3 years ago
6 0

Answer:

65

because 22 + 63 equals 85 and 20+65 equals 85 as well.

hope it helps :)

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A store is having a going -out-of buisness sale.a television set that orginally cost 3000 has been marked down by30% what do you
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Step-by-step explanation:

take 3000 and minus that by 30 percent, then after that, add 7 percent to get your total.

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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
Brilliant_brown [7]

-2<em>x</em> + 6<em>y</em> = -38

3<em>x</em> - 4<em>y</em> = 32

To solve by elimination, multiply the top equation by 3 and the bottom equation by 2.

3(-2<em>x</em> + 6<em>y</em> = -38) --> -6<em>x</em> + 18<em>y</em> = -114

2(3<em>x</em> - 4<em>y</em> = 32) --> 6<em>x</em> - 8<em>y</em> = 64

Add the equations.

-6<em>x </em>+ 18<em>y</em> = -114

6<em>x</em> - 8<em>y</em> = 64

+_____________

0 + 10<em>y</em> = -50

10<em>y</em> = -50

<em>y</em> = -5

Substitute -5 for y into one of the original equations to find x.

3<em>x</em> - 4<em>y</em> = 32

3<em>x</em> - 4(-5) = 32

3<em>x</em> + 20 = 32

3<em>x</em> = 12

<em>x</em> = 4

Check work by plugging the <em>x</em>- and <em>y</em>-values into both of the original equations.

-2<em>x</em> + 6<em>y</em> = -38

-2(4) + 6(-5) = -38

-8 - 30 = 38

38 = 38


3<em>x</em> - 4<em>y</em> = 32

3(4) - 4(-5) = 32

12 + 20 = 32

32 = 32

Answer:

<em>x</em> = 4 and <em>y</em> = -5; (4, -5).

8 0
3 years ago
Read 2 more answers
What is the LCM of 539, and 15?
aev [14]
<u>LCM on 539 and 15 :</u>

539 x 15
= 8 085

Answer : 8 085

8 0
3 years ago
Read 2 more answers
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