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arlik [135]
3 years ago
12

Solve for the value of x ? −2(x+13)+9x=4

Mathematics
2 answers:
Reika [66]3 years ago
7 0

Answer:

30/7

Step-by-step explanation:

Distribute:

-2x-26+9x=4

Combine like terms:

7x-26=4

Add 26.

7x=30

Divide by 7:

x=30/7.

Hope this helps :D

Novay_Z [31]3 years ago
6 0

Answer:

x = 30/7

Step-by-step explanation:

−2(x+13)+9x=4

Multiply out the bracket

-2x - 26 + 9x = 4

Combine the x terms

(-2x + 9x) - 26 = 4

7x - 26 = 4

Rearrange into the form Ax = b, so all the x's are on one side and the integers are on the other.

7x = 4 + 26

7x = 30

Rearrange into the form x = b, so x is on one side and the integer is on the other.

x = 30/7

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Barbara deposited $300 in the bank. If the bank pays her simple interest at the rate of 4 percent per year, how much money will
grigory [225]

Answer:

309

Step-by-step explanation:

The formula for simple interest is

A = P(1 + rt)

where A is the amount of money in the account

P is the principal invested

r is the interest rate in decimal form

t is the time invested in years

We know

P = 300

r = 4% = .04

t = 9 months = 9 months * 1 year/12 months = .75 year

Substituting into the equation

A = 300(1 + .04*.75)

  =300 (1+.03)

  =300(1.03)

   = 309

4 0
3 years ago
Find the mode of the following data set.<br><br><br><br><br><br> a. 31<br> b. 3 and 4<br> c. 1
kati45 [8]

Answer:the mode is b

Step-by-step explanation:

B

4 0
3 years ago
Read 2 more answers
I can't get an answer for this question, can you help?​
Ostrovityanka [42]

Answer:

x1=-2, x2=2

Step-by-step explanation:

8 0
3 years ago
A saleswoman earns 3% commission on all the merchandise that she sells. Last month she sold $3000 worth of merchandise. How much
Lynna [10]

She earned $90 commission last month.

Step-by-step explanation:

Given,

Commission rate of saleswoman = 3%

Sold worth of merchandise = $3000

Commission amount = 3% of sold worth

Commission\ amount=\frac{3}{100}*3000\\\\Commission\ amount=\frac{9000}{100}\\\\Commission\ amount=\$90

She earned $90 commission last month.

Keywords: percentage, division

Learn more about division at:

  • brainly.com/question/2228475
  • brainly.com/question/2226873

#LearnwithBrainly

4 0
4 years ago
PLEASE HELP! I need someone to help me with my home work is anyone able to help?
Monica [59]

Answer:

Katie

Step-by-step explanation:

Use seconds as the standard unit to compare the speeds of the 4 runners

Tony is already in standard form and runs 12 ft/s

Katie:

450/30

15 ft/s

Frank:

1 mile = 5280 feet

5280/577

9.15 ft/s

Adam:

I minute = 60 seconds

880/60

14.67 ft/s

8 0
3 years ago
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