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ddd [48]
3 years ago
15

3x + 5 = 5x - 11. What is the value of x in this equation.

Mathematics
2 answers:
Nesterboy [21]3 years ago
7 0

Answer:

X=8

Step-by-step explanation:

3x+5=5x-11

-3x   = -3x      Subtract the 3x from both sides

5      = 2x-11    You will end up with 5 on the left and 2x-11 on the right

+11     = +11      Add 11 to both sides to get rid of 11 on the right

16     =2x       you will end up with 16=2x

16/2=2/2       Lastly divide 2 on both sides

8=x                You will end up with the answer as x=8

svlad2 [7]3 years ago
5 0
Make sure that when you bring a number to the other side of the equal sign, you need to change from + to - or from - to +

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1. Kim works as a book keeper and creates invoices for a variety of companies. Help Kim find the total
Zanzabum

This is about calculation of invoice.

<u><em>1) Total for the invoice = $2641.25</em></u>

<u><em>2) Total for the invoice = $30</em></u>

<u><em>3) Total for the invoice = $1925</em></u>

<u><em /></u>

  • 1) 12 cameras for $200 each

Amount for cameras = 12 × 200 = $2400

25 cables with length of 10 ft each cost $1.25

Amount for 10 ft cables = 25 × 1.25 = $31.25

12 ft specialty cables cost $1.75 per foot

10 of these cables will have length =12 × 10 = 120 ft

Amount for 10 of these cables = 1.75 × 120 = $210

Total for the Invoice = $2400 + $31.25 + $210

Total for the invoice = $2641.25

  • 2) 250 yards of rope costs $500.

Thus, price per yard = 500/250 = $2 per yard

For a customer that wants 15 yard;

Total for the invoice = 15 × $2 = $30

  • 3) Dump truck is rented for $275 per hour. And the minimum is 2 hours per day. This means that anything less than 1 hour, the money paid must be money for 2 hours.

Thus;

On monday; 1 hour will cost; 2 × $275 = $550

On Tuesday; 3 hours will cost; 3 × $275 = $825

On wednesday; 2hours will cost; 2 × $275 = $550

Total for the invoice = 550 + 825 + 550 = $1925

Read more at; brainly.com/question/17745127

8 0
3 years ago
Mrs. Spina bought 4 boxes of 8 pork chops. She set aside 12 and separated the rest into packs of4 to freeze. How many packs of c
allsm [11]

Step-by-step explanation:

Number of pork chops Mrs Spina bought =

Number of boxes x number of pork chops per box

= 4x8

= 32

Number of Pork chops to freeze = 32 - 12 (set aside) = 20

Number of packs of pork chops to freeze = Number of pork chops to freeze / pork chops per pack

= 20/4

= 5 packs.

7 0
3 years ago
What numbers do you multiply to find 900 this partical product
Bad White [126]

You mean square root of 900?

I gotcha covered

30

7 0
2 years ago
Solve each system of equation by substitution y=-x+5 x+2y=2​
Likurg_2 [28]

Answer:

x = 8

y = -3

Step-by-step explanation:

Given :

y = -x + 5 ...................... equation 1

x + 2y = 2 ........................ equation 2

solving the system of linear equation by substitution method , substitute equation 1 into equation 2 , that is

x + 2(-x+5) = 2

x - 2x + 10 = 2

-x + 10 = 2

collect the like terms

10 - 2 = x

therefore :

x = 8

substitute x = 8 into equation 1 to find the value of y , that is

y = -8 + 5

y = -3

Therefore :

x = 8

y = -3

3 0
3 years ago
Isaac Green Elimination (Level 1) Mar 17, 8:18:58 AM Find the solution of the system of equations. 8x + y = -13 8r 2y = 10​
kicyunya [14]

Answer:

y = 23

x = -4.5

Step-by-step explanation:

Given:

Equation

8x + y = -13 ......eq1

8x + 2y = 10​........eq2

Find:

Solution

Computation:

Eq2 - Eq1

y = 23

From eq1

8x + y = -13

8x + 23 = -13

8x = -36

x = -4.5

5 0
3 years ago
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