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sleet_krkn [62]
3 years ago
5

3x+2y=6 how do i do this question i do not umderstand ​

Mathematics
2 answers:
agasfer [191]3 years ago
6 0

Answer:

You cannot.

Step-by-step explanation:

In order to solve for two variables, you need a system of equations, meaning at least two equations with the same two variables.

You cannot solve for x and y with just one equation as there will be an infinite range of solutions.

Let's say that there was a second equation, like:

x + 2y = 4

You could isolate the x (x = 4 - 2y), then substitute this value in the first equation:

3(4 - 2y) + 2y = 6

12 - 6y + 2y = 6 (expanded)

12 - 4y = 6

4y = 6

y = 6/4 = 3/2 (reduced)

Then, you plug this value of y into the x equation:

x = 4 - 2(3/2)

  = 4 - 3

  = 1

This is how you would solve it if you had another equation/a system of equations.

Hope this helps!

tatiyna3 years ago
4 0

Answer:

You would have to put this into a slope intercept form.

Step-by-step explanation:

Here's the step on how to do it:

1. 2y = -3x +6  (You subtract 3x from both sides)

2. y= -3/2x + 3 (Now you divide both sides by 2)

y = -3/2x +3 is your answer.

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sukhopar [10]
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And divide both sides by 7 48\7 then switch sides b=48/7
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3 years ago
Help me with A and B please
g100num [7]

Part A.

Ashwin had a 4-cm cube.

volume of cube = side^3

volume = (4 cm)^3 = 64 cm^3

Ashwin has 64 small cubes.

We need to find the volumes of all prisms in Part A. Only prisms with at most 64 cm^3 volume can be the answer.

A. v = 2 * 4 * 7 = 28

B. v = 4 * 5 * 6 = 120

C. v = 5 * 5 * 4 = 100

D. v = 4 * 7 * 5 = 140

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Part A. answer: A, E

Part B.

Dora had a 5-cm cube.

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volume = (5 cm)^3 = 125 cm^3

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6 0
3 years ago
Which expression is equivalent to 15a^8b^4/5a^4b?<br> 3a^2b^4<br> 3a^4b^3<br> 10a^4b^3<br> 10a^4b^4
EleoNora [17]

Answer:

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Step-by-step explanation:

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4 + 1 = 5:

3 a^(8 + 4) b^5

8 + 4 = 12:

Answer: 3 a^12 b^5

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Answer:

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Step-by-step explanation:

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