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Dvinal [7]
3 years ago
5

Please help ASAP!!

Mathematics
1 answer:
Allisa [31]3 years ago
5 0
In a stem and leaf plot, the numbers on the left side of the line represent the tens digit in a number and the right side represent the ones digit. Therefore you have the numbers 15, 18, 46, 50, 50, 50, 50, and 57. The question asks you to find the mean, or the average of the numbers. So all you have to do is add up the numbers and divide it by 8 and that'll leave you with 42.
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Evaluate the expression when x=3 and y=-4 . <br><br> -6x+y<br><br><br><br>Easyyyy....
RSB [31]

Answer:

-22

Step-by-step explanation:

7 0
3 years ago
What is 8/9 to the second power
densk [106]

Answer:

64/81

The drawing will help

7 0
3 years ago
Read 2 more answers
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
nikitadnepr [17]
You can start with the form
  ∆y(x -x1) -∆x(y -y1) = 0
Here, we have
  ∆y = 11-(-3) = 14
  ∆x = -3-1 = -4
and we can choose (x1, y1) = (1, -3). This gives
  14(x -1) -(-4)(y -(-3)) = 0
  14x +4y -2 = 0
All these terms have a common factor of 2 that we can remove. Adding 1 to the result puts it in standard form:

  7x +2y = 1

6 0
3 years ago
Jason can travel 24 3/4 miles in one half hour what is his average speed in miles per hour
NikAS [45]
Average speed = 24 3/4 / 1 1/2 = 99/4 / 3/2 = 99/4 x 2/3 = 16 1/2 miles per hour.
4 0
3 years ago
Select the correct answer. Sean and Colleen are raking leaves in their yard. Working together, they can clear the yard of leaves
Lera25 [3.4K]

Answer:

40 minutes

Step-by-step explanation:

Let c represent the number of minutes it would take colleen to finish the job when he is working alone. Hence, it can be represented by the equation:

\frac{1}{c}+\frac{1}{c+20}  =\frac{1}{24} \\\\Finding\ the\ L.C.M\ of\ the\ fraction\ to\ get\ 24c(c+20)\ as\ the\ L.C.M.\\Multiply\ the\ whole\ equation\ by\ 24c(c+20):\\\\\frac{1}{c}(24c(c+20))+\frac{1}{c+20}(24c(c+20))  =\frac{1}{24}(24c(c+20)) \\\\24c+480+24c=c^2+20c\\\\48c+480=c^2+20c\\\\c^2+20c-48c-480=0\\\\c^2-28c-480=0

Solving the quadratic equation to get c gives:

c = -12 and c = 40

Since the time cannot be negative, hence c = 40 minutes.

It would take colleen 40 minutes to clear the yard of leaves alone

6 0
3 years ago
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