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ratelena [41]
3 years ago
9

Explain why 7 times x/7=x. How does your answer help you solve a division equation such as x/7=2?

Mathematics
1 answer:
tatiyna3 years ago
7 0
Dear Ajtocute, let's have x=9 Multiply 7 by 9 to get 63. Then, you divide 63 by 7 to get back to 9. You just cancel out the multiplication with division.
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Solve the equation for x.<br> 1/3 (6x - 15) = 1/2 (10x-4)
Readme [11.4K]

Answer:

<h2>x = - 1</h2>

Step-by-step explanation:

\frac{1}{3} (6x - 15) =  \frac{1}{2} (10x - 4)

Expand the terms in the bracket

That's

\frac{1 }{3}  \times 6x  +   \frac{1}{3} ( - 15) =  \frac{1}{2} (10x)   +  \frac{1}{2} ( - 4) \\ 2x - 5 = 5x - 2

<u>Subtract 5x from both sides</u>

2x  - 5x - 5 = 5x - 5x - 2  \\  - 3x - 5 =  - 2

<u>Add 5 to both sides</u>

- 3x - 5 + 5 =  - 2 + 5 \\  - 3x = 3

<u>Divide both sides by - 3</u>

\frac{ - 3x}{ - 3}  =  \frac{3}{ - 3}

We have the final answer as

<h3>x = - 1</h3>

Hope this helps you

3 0
3 years ago
167/100 write it as a percent please
Nady [450]

Answer:

167%

Or

1.67%

Step-by-step explanation:

Hope it helped!

8 0
3 years ago
The function c(x) = 18x -10 represents the cost in dollars. How many tickets can you buy?
Mekhanik [1.2K]

<em>Note: It seems you may have unintentionally missed writing the complete question. As total cost is missing.</em>

<em>So, I am assuming how many tickets Mr. XYZ can buy if he/she pays 530 dollars.</em>

<em>The solution would still clear your concept though.</em>

Answer:

Please check the explanation.

Step-by-step explanation:

Given the function

c(x) = 18x -10

The slope-intercept form of the line equation

We know that the slope-intercept form of the line equation

y = mx+b

where m is the slope and b is the y-intercept

so

 c(x) = 18x - 10

comparing with the slope-intercept form of the line equation

  • rate of change = 18
  • c(x) or y represents the cost
  • 'x' represents the number of tickets

Assuming the total cost i.e. c(x) = $530

In order to determine the value of x, set c(x) = 530

i.e.

530 = 18x -10

switch sides

18x - 10 = 530

add 10 to both sides

18x - 10 + 10 = 530 + 10

18x = 540

Divide 18 to both sides

18x/18 = 540/18

x = 30

Therefore, if you can buy x = 30 tickets if you pay 530 dollars.

5 0
3 years ago
The radius of a circular track is 0.2 miles ellie ran around the track 3 times how many kilometers round to the nearest whole mi
balu736 [363]

Answer:

4 miles to the nearest mile.

Step-by-step explanation:

Circumference of the track = 2 pi r

= 2*pi*0.2 = 1.257  miles

Ellie ran 3 times around the track so

the distance she ran is 3* 1.257

=  4 miles

6 0
3 years ago
The egg delivery truck arrives to savers supermarket with 250 dozen eggs. how many total eggs are in that truck.
nignag [31]

Answer:

3000

Step-by-step explanation:

12x250=3000

8 0
2 years ago
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