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adoni [48]
3 years ago
9

Can someone answer my 2 previous questions?

Mathematics
1 answer:
valkas [14]3 years ago
4 0

Answer:

sure!

Step-by-step explanation:

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2/3 of the sum of three times a number and six is 10. what is the number?
mestny [16]

9514 1404 393

Answer:

  3

Step-by-step explanation:

Let x represent the number. The problem statement tells you ...

2/3(3x +6) = 10

  2x +4 = 10 . . . . . . use the distributive property

  x +2 = 5 . . . . . . . . divide by 2

  x = 3 . . . . . . . . . . .subtract 3

The number is 3.

__

<em>Comment on the solution</em>

The above shows an "alternative" solution method. The more usual way this might be done is ...

  2(3x +6) = 30 . . . . . multiply by 3 to clear fractions

  6x +12 = 30 . . . . . . . eliminate parentheses

  6x = 18 . . . . . . . . . . . subtract 12

  x = 3 . . . . . . . . . . . . divide by 6

3 0
3 years ago
Read 2 more answers
Use mental math to determine the solution to x - 3 = 10 .
DanielleElmas [232]
First Step: Leave "x" alone, pass the 3 to the other side X= 10+3 Second Step: Add 10 plus 3 X= 13 So your answer is: x=13
8 0
3 years ago
Read 2 more answers
A laptop computer sells for $850. the sales tax is 7%. what is the total cost of the laptop?
evablogger [386]

Answer:

$909.50

Step-by-step explanation:

$850 x 7% = $59.50 (tax amount)

850 x (1+ 0.07) = $909.50

4 0
3 years ago
Question progress<br> Homework Progress<br> The ratio 8:2 in its simplest form is
lidiya [134]

Answer:

4:1

Step-by-step explanation:

just divide by the highest numbe 2 in this case

6 0
3 years ago
Escreva na forma ax2+bx+c=0 as seguintes equações do 2° grau
7nadin3 [17]
The answer is 2x(5+3)
3 0
2 years ago
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