Trey has answered 15 emails. This is 20% of emails he must answer how many emails does he needs to answer

Mathematics

2 answers:

Anna007 [38]3 years ago

4 0

Answer:

Step-by-step explanation:

Anettt [7]3 years ago

3 0

Answer:

Step-by-step explanation:

15 times 5 is 75 75 minus 15 is 60 so the answer is 60

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Solve for x. 8x^2-3=2

Mazyrski [523]

$(2^3x^2 - 3) - 2 = 0 \\ \\ Factoring: \ 8x^2-5 \\ \\ 8x^2 - 5 = 0 \\ \\ Add \ 5 \ to \ both \ sides \ of \ the \ equation : \\ \\ 
 8x^2 = 5 \\ \\ Divide \ both \ sides \ of \ the \ equation \ by \ 8: \\ \\ 
 x^2 = \frac{5}{8} = 0.625 \\ \\ \boxed{ x =\pm \sqrt 5/8}$

Your answer: Option A

7 0

4 years ago

Please answer it correctly I need it today please help

alexdok [17]

Answer:

I am about 95% sure that this is what they want. P.s (sorry I cant put the divide symbol)

The variable is the number of shirts she bought or x

and the equation is (375+50) divided by (15+2) = x

in the solve spot put

(375+50) divided by (15+2)=x

425 divided by 17=x

x=25

Then your answer would be 25

Step-by-step explanation:

first add 50 to 375 so you get the full price which will give you 425. then to find out how many shirts she bought you must add 2 to 15 to get 17. then divide 425 by 17 which is 25. so she bought 25 shirts.

3 0

3 years ago

If x - 12y= -210 and x -6y=90, then x=

Genrish500 [490]

Answer: x = -30

Step-by-step explanation:

y = -20 by using process of elimination substitute y as -20 in either of the equations you get -30 for x

5 0

3 years ago

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What is distance between -8 and 3 on the number line

Anna11 [10]