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bezimeni [28]
3 years ago
14

Math matrix with variable

Mathematics
1 answer:
masya89 [10]3 years ago
8 0

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Expand the following:<br> 1/5 (10x-25)
mario62 [17]
<span>This must be your answer:
Expanded: 1/5 x 10x + 1/5 x -25 </span>
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3 years ago
explain why in a drawer only containing two different colors of socks one must pull 3 out to find a matching pair?
Lorico [155]
If there are only two colors (let's say blue and red), here's what can happen:
sock #1 is blue
#2 is either blue or red. If blue, it matches #1 and you have a pair.
if red, go to #3
#3-either blue or red. If blue, matches #1. If red, matches #2.

OR sock #1 is red... then just reverse the colors. Basically, if you have three things that can only be in two groups, then even if two of them are different, the last one has to match one of them.

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3 years ago
Ethan goes to a store an buys an item that costs x dollars. He has a coupon for 5% off, and then a 9% tax is added to the discou
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Well Ethan’s pretty cool
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4 lb. 8 oz. − 1 lb. 2 oz. =
saw5 [17]
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8 0
3 years ago
Read 2 more answers
What are the Rates of Change and the initial values to these? If you don't have the answer I'll take an explanation on how to do
gogolik [260]

Step-by-step explanation:

So, a coordinate plane is made out of two axis, the x and the y. Through these, we have grid squares on the plane showing points. So, each square would be one point. To find the <u>rate of change, or slope,</u> you would have to use the formula:

y(#2) - y(#1)

------------------ = Divided by

x(#2) - y(#1)

This formula will calculate the rate of change. I will do the first one for you as follows.

The first point I would find would be (1,3). 1 space on the X-axis, 3 on the Y-axis.

To write a ordered pair to represent the point on the plane, use the (X,Y).

Then, I'd find the second point.

Following the second point, I would do the equation like so.

y(2) - 3

-----------------  

x(2) - 1

See, I used the first points given as the last X and Y variables in the formula.

Hope this helps you out!

4 0
3 years ago
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