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mamaluj [8]
3 years ago
11

What is -2x-y=-9. 5x-2y=18

Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

I put them in slop so

1) y= -2x+9

2) y=5/2x -9

it would help to say what u need to solve it for but hoped it helped

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Here are the prices of five new pairs of hockey skates, in dollars: 59, 60, 65, 99, 175. The standard deviation is about $49. If
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Answer:

The standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

Step-by-step explanation:

The prices are given to be : 59, 60, 65, 99, 175

Standard deviation = $49

Now, if we add or subtract any constant value to each of the terms then the standard deviation remains unchanged.

But, we add a new price in the given data that is $450

\text{New standard deviation = }\sqrt{\frac{\sum (\bar{x}-x_i)^2}{n}}\\\\\bar{x}\text{ is the mean of data after adding 450 and}\\x_i\text{ are the price values of the sample data}

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If michelle walked 5 meters, how many inches did she walk
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What's time 21/2 hours after 11:45 AM?
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Write and solve an inequality to find the values of x for which the perimeter of the rectangle is less than 120.
RSB [31]

Answer:

Inequality : 4x+8 < 120

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Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Perimeter of a rectangle (P)= 2 length +2 width

Where:

Width = x

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Replacing with the values given

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Since the perimeter of the rectangle must be less than 120:

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Feel free to ask for more if needed or if you did not understand something.  

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