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andrew-mc [135]
3 years ago
11

Translate to a system of equations and solve.

Mathematics
2 answers:
hoa [83]3 years ago
5 0

Step-by-step explanation:

sksjjd

ksjshdjdeiejo

luda_lava [24]3 years ago
5 0

Answer:

12 and 15

Step-by-step explanation:

Let the numbers be called x and y.  We know from the first sentence that:

x + y = 27.

From the second sentence we know that x + 3 = y. (In this problem it does not matter which is x and which is y.)

Substituting in x + 3 into the first equation, we have

x + x + 3 = 27

2x + 3 = 27

2x + 3 - 3 = 27 - 3

2x = 24

x = 12

y = x+ 3 = 15

Check: does x + y = 27?  Yes, 12 + 15 = 27

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5 gallons equals how many milligrams?​
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Answer: 18,927.05892

Step-by-step explanation: There are 3785.4411784 milligrams in a gallon. that times 5 is your answer, 18,927.05892.

Hope this helped!

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4 years ago
Which equation in point-slope form contains the point (−3, 5) and has a slope of −4?
Oksi-84 [34.3K]

Answer:

y - 5 = -4(x + 3)

Step-by-step explanation:

This question is asking you to use and make an equation using the base of the "point-slope form." This is a common equation used when dealing with coordinates and graphs in math. The point-slope form equation looks like this:

y - y₁ = m(x - x₁).

We are going to need to use this equation base to create our problem from the information given. If you are wondering what those subscripts of 1 mean (the 1 in y₁ and x₁), I will explain. Remember that:

slope (m) = <u>y - y₁</u>

                  x - x₁

So, our first y value (which is the y-coordinate of 5 in [-3, 5]) can be added into the problem base that I had mentioned above:

y - <u>5</u> = m(x - x₁).

Now, we need to place the first x value (which is the -3 in [-3, 5]) can be added into the base problem once more:

y - 5 = m(x - (<u>-3</u>)).

Because a negative number with a negative symbol in front of it creates a positive, we can change that as well:

y - 5 = m(x + 3).

Fortunately, the question provides a slope ready for use. The question says that the slope is -4, so we can place this into the equation now:

y - 5 = -4(x + 3).

I hope that this helps.

3 0
3 years ago
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