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I am Lyosha [343]
2 years ago
11

What is the equation of the line of best fit for this data

Mathematics
1 answer:
77julia77 [94]2 years ago
6 0

Answer:

y = 0.96x + 0.57


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It takes Alexandra 2 hours and 44 minutes to cut the grass. Austin needs 3 hours and 14 minutes to cut the grass. If they work t
Vedmedyk [2.9K]
For problems such as this, it can be handy to remember that
.. 1/(1/a +1/b) = ab/(a +b)

The time required to do a job is the inverse of the rate at which the job is done. Rates are added when people work together (in math problems, not in real life).

(2:44)*(3:14)/(2:44 +3:14) = 1:28:52.3

___
2:44 = 41/15 hours = 82/30 hours
3:14 = 97/30 hours
Using the formula above, we have a "working together" time of
.. (82/30)*(97/30)/(82/30 +97/30) = 82*97/(30*179) = 3977/2685 . . . hours
.. = 1 hour 28 156/179 minutes
.. = 1 hour 28 minutes 52 52/179 seconds

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Learn to use the fraction functions on your calculator. They can be very helpful.
6 0
3 years ago
³√73-(-3)², calculate the value​
Vitek1552 [10]
The value of this equation is: 4
Answer: 4
6 0
3 years ago
If two point lie in the same plane, then a line containing the lies in the plane. Illustrate.
dlinn [17]

Answer:

tom

Step-by-step explanation:

4 0
3 years ago
Ticket costs £63 plus a booking fee of 3%. <br> What is the total price of the ticket ?
Arte-miy333 [17]
The answer is £64.89.

Step by Step:

Take the original price multiplied by 0.03 ( the percent of a booking fee ) and add those amounts together.

Equation: 63 + 1.89 = 64.89
5 0
3 years ago
Peggy bought two racing cars for 5x dollars each and three model motorcycles for 3 eggs dollars each find the amount of money Pe
Sever21 [200]

Answer:

  19x

Step-by-step explanation:

The cost of the racing cars was ...

  2(5x) = 10x

The cost of the model motorcycles was ...

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Peggy paid in total ...

  10x + 9x = 19x

7 0
3 years ago
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