5 points

Mathematics

2 answers:

lana66690 [7]2 years ago

4 0

Answer:

Justin by 4

Step-by-step explanation:

you add all the numbers for T.J. and for Justin separately and divide by five. you get 42 for Justin and 46 for T.J.

-plz mark as brainliest-

Nataliya [291]2 years ago

3 0

Answer:

Justin has a lower mean tip for the week with $42.

Step-by-step explanation:

To find the mean you must add all the numbers and then divide the sum by how many numbers there are.

For Justin you must add 32 + 45 + 50 + 33 + 50 then you'll get the sum 210. There are 5 numbers so you divide 210 by 5 which gives you the quotient 42.

As for T.J. you add 58 + 48 + 40 + 42 + 42 which gives you the sum of 230. Then you divide 230 by 5 since there's 5 numbers. Now you have the quotient of 46.

46 is greater than 42 so Justin has the lower mean.

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<em>Comment on the equation</em>

The line ax+by=0 passes through the origin. Replacing x and y with x-h and y-k, respectively, makes the line pass through the point (h, k). That's what we did above to make the line pass through the given point.

The business of swapping coefficients and negating one causes the slope of the new line to be the negative reciprocal of the slope of the original line. That is what makes the new line perpendicular to the original.