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3 years ago

How do i solve for x (2x-8)=0

Mathematics

1 answer:

Irina18 [472]3 years ago

7 0

Good evening ,

Answer:

x=0 or x=4

Step-by-step explanation:

x (2x-8)=0 ⇔ x =0 or 2x-8=0 ⇔x=0 or 2x=8 ⇔ x=0 or x=8/2 ⇔ x=0 or x=4.

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Nadine mixes a juice solution that is made from 3 gallons of an 80% juice solution and 1 gallon of a 20% juice solution. What is

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Answer:

65%

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3 years ago

A model house has a scale of

Lapatulllka [165]

Answer: Assuming that you mean 1in:2ft the model house would be 13 inches wide.

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2 years ago

Carl has three lengths of cable, 5/6 yard long, 1/4 yard long, and 2/3 yard long. If he uses 1 yard of cable, how much cable is

Dafna1 [17]

He would have 9/12 yards left over because you have to create a common denominator which would be 12. so for 5/6 you would multiply by 2 so you have 10/12. 1/4 you have to multiply by 3 so you get 3/12. and 2/3 you have to multiply by 4 so you get 8/12. then you add them 10/12+3/12+8/12 = 21/12 which simplifies to 1 9/12 and because he used 1 yard he is left with 9/12.
final answer: 9/12 yards

3 0

3 years ago

Find the distance between points A and C round to the nearest tenth.

Taya2010 [7]

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Really hope this helps!

6 0

3 years ago

1. Refer to the equation 3x − 5y = 15. (a) Create a table of values for at least 4 points. Show your work on how you found the v

Leno4ka [110]

Answer:

We have the equation:

3x - 5y = 15

a) We want to create a table with at least 4 points.

To do this, first, let's write the equation as a function: We must isolate one of the variables. Let's isolate y.

5y = 3x - 15

y = (3/5)*x - 3.

Then we have a linear equation.

Now, we can input different values of x, and see what value takes y in each case, then in this way we can be sure that the points will be on the line.

x = 0.

y = (3/5)*0 - 3

y = -3

Then we have the point (0, -3).

x = 1.

y = (3/5)*1 - 3 = 3/5 - 15/5 = -12/5

y = -12/5

Then we have the point (1, -12/5)

x = 5

y = (3/5)*5 - 3 = 3 - 3 = 0

y = 0

then we have the point (5, 0)

x = 10

y = (3/5)*10 - 3 = 6 - 3 = 3

y = 3

Then we have the point (10, 3).

Now we can create the table

$\left[\begin{array}{ccc}x&y\\0&-3\\1&-12/5\\5&0\\10&3\end{array}\right]$

Below you can see a graph, where the blue dots are our 4 points, and the green line is the line that represents the equation.

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3 years ago