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ZanzabumX [31]
2 years ago
10

HELP PLZ ILL GIVE U BRAINS :)

Mathematics
2 answers:
shutvik [7]2 years ago
7 0

Answer:

brains...yum

Answer: 5x - 9 = 6

Step-by-step explanation:

x = 3

2(3) - 8 -= 5 --> 6 - 8 =5  (false)

9(3) + 4 = -31 --> 27 + 4 = -31 (false)

6(3) - 9 = 57 --> 18 - 9 = 57 (false)

5(3) - 9 = 6 --> 15 - 9 = 6 (true)

Paladinen [302]2 years ago
7 0

Answer:

5x-9 =  6

Step-by-step explanation:

5x−9=6

Add 9 to both sides.

5x=6+9

Add 6 and 9 to get 15.

5x=15

Divide both sides by 5.

x=  15/5

Divide 15 by 5 to get 3.

x=3

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Round the number 206.8 to the underline place the 0 is underlined
lara [203]

Answer:

210.0

Step-by-step explanation:

you are rounding to the tens place so you look at the number before it is greater than 5 so you round up getting your answer of 210.0

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2 years ago
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Roman55 [17]

Answer:

X=4

Step-by-step explanation:

First you add like terms, in this case 5x and x. Then you have 6x-1=23. You then add 1 from both sides so you end up with 6x=24. This then results in X=4

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Pencils cost 0.55 each. A pack of pencils cost $11. Which equation can be used to fined p the number of pencils in one pack
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8 0
3 years ago
Joe paid $14 for a board game. this is 70% of the original price. what was the original price?
tino4ka555 [31]

Step-by-step explanation:

It is given that Joe paid 14.00 for a board game this is 70% of the original price what is the original price.

Let the original price of board game be

X.

x * 70/100 = 14

x * 7/10 = 14

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4 0
1 year ago
The value of 5x2 - 11x + 18 is<br> when x = 2.4 and<br> whenx = -3.
Virty [35]

Answer:

20.4

96

Step-by-step explanation:

The value of 5x² - 11x + 18 is

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= 28.8 -26.4+18 = 20.4 (when x = 2.4)

and 5(-3)² -11(-3) +18 = 45+33+18 = 96

(when x = -3)

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3 years ago
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