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Zanzabum
3 years ago
7

Im almost done with school so here is some of my points D:

Mathematics
2 answers:
almond37 [142]3 years ago
5 0
Thank you SM I really appreciate it
marta [7]3 years ago
4 0

Answer:

thxx.

Step-by-step explanation:

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What times 5 equals 70?
Viefleur [7K]
5n  =70 
5 x 14 = 70
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3 0
4 years ago
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Please explain how to do this, I'm using all my points<br><br>A. 40 L<br>B. 80 L<br>C. 4 L <br>D. 8L
exis [7]

Answer: choice A. 40 liters

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

Explanation:

x = number of liters of the 50% alcohol solution

If we have x liters of 50% alcohol, then we have 0.50*x liters of pure alcohol. This is added to 0.90*40 = 36 liters of pure alcohol (from the 90% solution).

So far we have 0.50*x + 36. This expression represents the total amount of pure alcohol. We want a 70% solution, so we want 70% of the total 40+x meaning 0.50*x + 36 is to be set equal to 0.70*(40+x) and we solve for x as shown below

0.50*x + 36 = 0.70*(40+x)

0.50*x + 36 = 0.70*(40)+0.70*(x)

0.50*x + 36 = 28+0.70*x

36 - 28 = 0.70*x - 0.50x

8 = 0.20x

0.20x = 8

x = 8/0.20

x = 40

So that is why the answer is choice A. 40 liters

6 0
3 years ago
If The Area Of Triangle MNO Is 24cm2 Find The Area Of Triangle PNO​
drek231 [11]

Answer:

24 cm^2

Step-by-step explanation:

The three sides are equal (SSS: side, side, side) so the triangles are congruent.

8 0
2 years ago
Please Help!! Screenshot below!
Reika [66]

Answer:

the answer is x+3(the 3rd option)

Step-by-step explanation:

Hope This Helps!!

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7 0
3 years ago
Last week Mark ran 31 miles more than Jack. Mark ran 46 miles .How many miles did Jack run
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You take what Mark ran, 46 miles, and you see that Mark ran 31 more miles than Jack, so the equation would be 46-31, which would be 15 miles. So, Jack ran 15 miles.
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3 years ago
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