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Otrada [13]
2 years ago
8

John got the follow scores on his tests what is the interquartile range of his scores 78,57,90,60,89,69,95

Mathematics
1 answer:
Aleksandr-060686 [28]2 years ago
7 0
57, 60, 69, 78, 89, 90, 95 (90-60=30) Answer= C. 30
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BRAINLIESTTT ASAP! PLEASE HELP ME :)
Sav [38]

Answer:  18/5 hours, or 3.6 hours

=================================================

Work Shown:

x = amount of time it takes Blake to do the job by himself

y = amount of time it takes Ned to do the job by himself

z = time it takes if they worked together

In this case,

x = 9 and y = 6

Use those values to find z.

\frac{1}{x}+\frac{1}{y} = \frac{1}{z}\\\\\frac{1}{9}+\frac{1}{6} = \frac{1}{z}\\\\\frac{2}{18}+\frac{3}{18} = \frac{1}{z}\\\\\frac{2+3}{18} = \frac{1}{z}\\\\\frac{5}{18} = \frac{1}{z}\\\\5z = 18\\\\z = \frac{18}{5}\\\\z = 3.6\\\\

7 0
3 years ago
What is the value of y?
julsineya [31]

Answer:

C. y = 66

Step-by-step explanation:

this is a equal triangle so you know you have to find out what that one angle is to get the rest

180 - 114 = 66

3 0
3 years ago
how to find the area of two-dimensional and three-dimensional shapes? Please put small words so I will understand it ty :]
Mandarinka [93]
To find a 2-dimensional shape like a cylinder you say V=πr²h
to find a 3-dimensional shape like a sphere you will have V=4πr³÷3
6 0
2 years ago
Can someone solve this
Harrizon [31]

Answer:<em>IDK</em>

Step-by-step explanation:i don' t know

5 0
3 years ago
Cierra says that 5/6 times 5/6 equals 25/6 is that true?
Sholpan [36]

Answer:

No

Step-by-step explanation:

5/6 * 5/6 = .6944

25/6 = 4.1667

8 0
3 years ago
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