3 years ago

Twice the difference of a number and 9 is 8

Mathematics

1 answer:

victus00 [196]3 years ago

3 0

Answer:

Step-by-step explanation:

Think: 2(x-9)=8; x = the answer

2(x-9)=8

2x-18=8 (distributive property)

2x=26 (add 18 to both sides)

x=13 (divide both sides by 2)

Hope this answer helps you!

If you don't mind, could you please mark my answer as brainliest, thanks!

You might be interested in

What is 2(<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%2036-4%29%5Csqrt" id="TexFormula1" title="\sqrt{x} 36-4)\sqrt" alt="\

Mariana [72]

The answer is
2x^18-8

6 0

2 years ago

Read 2 more answers

I need help on #5,6, and 7

denpristay [2]

5.
$f(3) = 4 \times 3 - 3 = 12 - 3 = 9$
6.
$f(0) = 4 \times 0 - 3 = 0 - 3 = - 3$
7.
$f( - 7) = 4 \times ( - 7) - 3 = - 28 - 3 = - 31$

8 0

3 years ago

Alice earned $622.50 in interest on her savings in the bank. Before interest, the account had $12,450. What is the approximate p

Akimi4 [234]

Hi there

To find The interest rate the formula is
R=I÷pt
r interest rate?
I interest earned 622.5
P principle 12450
T time 1 year
So
R=622.5÷(12,450×1)
R=0.05×100=5%

Hope it helps

6 0

3 years ago

What is the first quartile of this data set? {6, 47, 49, 15, 43, 41, 7, 36}

stepladder [879]

<span>The first quartile is the same as the median of the data which are less than the overall median. Same as the 25th percentile.
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!

5 0

3 years ago

Karen used one-third of her total stamps on a campaign for charity. Karen used 60 stamps on the charity campaign.

UkoKoshka [18]

I assume the answer is 180 but u have not put a question

7 0

2 years ago

Twice the difference of a number and 9 is 8​

Twice the difference of a number and 9 is 8