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4 years ago

5x-1+7x-5=180 how do i get the answer

2 answers:

8 0

Here is your answer:

First combine like terms:

5x+7x=12x

12x-1-5=180

Add 5 on both sides

180+5=185

Add 1 on both sides

185+1=186

Then divide 12x on both sides:

186÷12=15.5

Your answer is:
x=15.5

Ronch [10]4 years ago

4 0

12X-6=180

12X=186

X=186/12=15.5

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Step-by-step explanation:

PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME = Number of favorable outcome / Total number of outcomes

Favorable outcome = 1

Total number of outcome (1,2,3,4,5,6,7,8,9,10) = 10

PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME = 1 / 10

PROBABILITY OF DRAWING AN EVEN NUMBER THE SECOND TIME = Number of favorable outcome / Total number of outcomes

Favorable outcome (2,4,6,8,10) = 5

Total number of outcomes (1,2,3,4,5,6,8,9,10) = 9

PROBABILITY OF DRAWING AN EVEN NUMBER THE SECOND TIME = 5/9

PROBABILITY OF DRAWING THE NUMBER 7 THE FIRST TIME AND THEN DRAWING AN EVEN NUMBER = 1 / 10 * 5 / 9 = 1 / 18

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