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IRISSAK [1]
3 years ago
8

Mrs. Kramer bought some markers at the school supply

Mathematics
2 answers:
zzz [600]3 years ago
6 0

Answer:

10

Step-by-step explanation:

80%=8markers which were black

so 100%will be equal to what

so equate 80%=8

100%=?

100×8/80

=10 am not sure but I think it's like that

Phoenix [80]3 years ago
3 0

Answer:10

Step-by-step explanation:

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5. Suppose a password requires three distinct letters. Find the number of permutations for the three letters in the code if the
Roman55 [17]

Answer:

There are 15600 ways to pick a password

Step-by-step explanation:

We have 26 possibilities to pick a letter. So, we have 26 possibilities for the first component of the password. The second letter should be different from the first one, so we have one less possibility, giving us a total of 25, and for the third letter we have 24.

This gives us 26*25*24 = 15600 ways of picking a password.

3 0
3 years ago
What are the solutions to the compound inequality -14<4x-10<6
wariber [46]

Answer:

-1 < x < 4

Step-by-step explanation:

First separated the compound

-14 < 4x - 10

4x - 10 < 6

Then solved for each

-14 < 4x - 10

-4 < 4x

-1 < x

4x - 10 < 6

4x < 16

x < 4

Then put the inequality together (if applicable)

-1 < x < 4

4 0
3 years ago
A quadrilateral has angle measures of 102°, 84°, and 77°. What is the measure of the fourth angle?
Mashcka [7]

Answer:

Measure of the 4th angle = 360-(102+84+77)

= 360-263

= 97°

Hope this helps!

6 0
3 years ago
What is the avarege of -2.5,5.2,1.7 and -0.8
aleksandr82 [10.1K]

Average:

4.4 / 3 = 1.4666666666667

Count:

3

Sum:

4.4

Average:

4.4 / 3 = 1.4666666666667

Count:

3

Sum:

4.4

5 0
3 years ago
Point A is at (-7,-7) and point B is at (-5,5). What is the midpoint of line segment AB?​
nevsk [136]

Answer:

MP= (-6,-1)

Step-by-step explanation:

midpoint formula: (\frac{x^{1}+x^{2}  }{2})(\frac{y^{1} + y^{2} }{2}  )=MP

(-7,-7) (x^{1},y^{1})

(-5,5)  (x^{2},y^{2})

(\frac{-7+-5}{2}) \\ (\frac{-7+5}{2})= -7+-5/2= -12/2= -6

-7+5/2= -2/2= -1

6 0
3 years ago
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