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kobusy [5.1K]
3 years ago
9

Lori wants to determine the average amount of time that students at her school spend on a computer each day there are 350 studen

ts and 15 class is the number of boys and girls is approximately equal which is the most random sample
Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0

Answer:

2 students from each 15 classrooms

Step-by-step explanation:

"The number of boys and girls is approximately equal" is probably the most random sample, that is if the whole topic of the publication is Lorrie and her experimenting endeavors. If that is not the subject, then "Lorrie wants to determine the average amount of time that students at her school spend on the computer each day" is the most strange and random

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The width of a singles tennis court is 75% of the width of a doubles court. A doubles court Is 36 feet wide. How wide is a singl
yuradex [85]

Answer:

width of a singles court = 27 feet

Step-by-step explanation:

Width of a doubles tennis court = 36 feet

Width of a singles tennis court = 75% of 36

width = 75\% \times 36 \\ width =  \frac{75}{100}  \times 36 \\ width =  \frac{3} {4}  \times 36 \\ width =  \frac{108}{4}  = 27

8 0
3 years ago
Solve the system of equations. (3x + 4y = 5) (2x - 3y = -8)
vovikov84 [41]

Answer:

the solution is (-1, 2)

Step-by-step explanation:

Let's solve the system

(3x + 4y = 5)

(2x - 3y = -8)

using the method of elimination by addition and subtraction.  Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:

  9x + 12y = 15

  8x - 12y  = -32

-----------------------

 17x       = - 17, so x = -1.  

Replacing x in the second equation by -1, we get:

2(-1) - 3y = -8, or

2 + 3y = 8,

or 3y = 6.  Thus, y = 2, and the solution is (-1, 2).

5 0
3 years ago
Ben is 4 times as old as Izzy and is also 6 years older than Izzy. How old is Izzy
Arlecino [84]

Answer:

2 years

Step-by-step explanation:

Let B = age on Ben

and age of Izzy =I

B =4I

B = 6+I

Gives 6+I = 4I

6 = 3I

I =2 years and B = 4x2 = 8years

Age of Izzy = 2 years

6 0
4 years ago
Please help 10 points and brainliest picture attached
Setler79 [48]

Answer:

x=19/4 , y=3/4

Step-by-step explanation:

7 0
3 years ago
Given: AB=CD, BD=DE<br> Prove: AD=CE
labwork [276]

This question is incomplete. Can you maybe add more information?

3 0
3 years ago
Read 2 more answers
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