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Viefleur [7K]
3 years ago
10

Which would the phrase "the difference between a number and 5" look like as a variable expression?​

Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0

The phrase “the difference between a number and 5” as a variable expression would look like: x - 5

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Write a verbal expression for:<br> 20+6
Helen [10]

what is the result of the addition of 20 and 6

8 0
2 years ago
Read 2 more answers
If y = 2x and 3x - 3y = 2, then x =
faltersainse [42]

Answer:

The value of x is equal to -2/3.

Step-by-step explanation:

In the problem it says that y equals 2x, and that 3x - 3y = 2.

The first step is to substitute 2x into y.

3x - 3(2x) = 2.

The next step is to use distributive property.

-3(2x) = -6x.

Now we need to add like terms.

3x - 6x = -3x.

Which gives us the equation -3x = 2.

The final step is to divide on both sides to get the value of x.

-3x/-3 = 2/-3.

x = -2/3.

So as you can see, x is equal to -2/3.

We can also check to make sure by redoing the problem, but substituting the value of x.

3(-2/3) - 3(2 * -2/3) = 2.

-2 - 3 * -4/3 = 2.

-2 + 4 = 2.

2 = 2.

The value of x is indeed -2/3.

5 0
2 years ago
What do you know about the scale factor for the dilation shown? Explain.
padilas [110]

We want to draw a conclusion about the scale factor for the dilation shown by only watching the given graph, the only conclusion we can take is that a scale factor is a number between 0 and 1. So we have a transformation that transforms the triangle ABC into the triangle A'B'C'.You can see that it is a dilation about the black dot seen in the given image, if the scale factor was a number larger than 1, then the dilated points would be further away from the black dot. But that is not the case, we can see that the images of the dilation are closer to the black dot, then this is not a "real" dilation, this is actually a contraction (where a contraction is a "dilation" of scale factor between zero and 1). Then the only thing that we can conclude with the given image is that the scale factor of the dilation shown is a number larger than 0 and smaller than 1.

8 0
2 years ago
What is -4d 3 + 28d 2 - 4d
Svetlanka [38]

Answer: 20d + 5

Step-by-step explanation:

First we need to combine like terms.

In this equation we can see that they're are 3 numbers containing the letter D we have -4, -4, 28.

We're going to combine -4 and -4 to get -8 and then combine -8 to 28 getting 20d

Afterwards we're going to combine 3, 2 equaling 5.

7 0
3 years ago
If the first term f(1) is 22 and the common difference (d) is 14
blondinia [14]

Answer:

22,36,50,64,78,92

Step-by-step explanation:

The common difference is when you take one term and subtract the previous term from it.

For example, 36-22=14

Hope that helps!

7 0
3 years ago
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