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pantera1 [17]
2 years ago
13

Help me

Mathematics
1 answer:
dybincka [34]2 years ago
6 0

Answer:

First you have to multiply negative four in parentheses, then add minus two

-4×(-8+3x)=32-12x

2+32-12x=34-12x

34-12x=82

-12x=48

x=-4

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Pipe A can fill a tank in 40 minutes, while pipe B takes 60 minutes to fill the same tank.
ella [17]

Answer:

24 minutes.

Step-by-step explanation:

This question shows up in a great many places in math or physics, so it is a pretty good question to learn how to do.

First you should note that answer will be under 40 minutes.

1/40 + 1/60 = 1/TimeTotal

The common denominator on the left is 120 minutes

3/40*3 + 2/60*2 = 1/timetotal

3/120 + 2/120      = 1/ timetotal

5/120 = 1/time total  Now to use to the key stop

What you do now is you always turn the left side over. You do the same thing to total time.

120/5 = total time

24 = total time

What this means is that if you let both pipes run for 24 minutes, they will fill the tank working together.

4 0
3 years ago
What is the quadratic equation of x2 - 7x + 6 = 0
s2008m [1.1K]

Answer:

x = 6 , 1

Step-by-step explanation:

7 0
2 years ago
Can anyone help me with primary 5 hw ?
Illusion [34]
B) 28×50, then take the answer - 1100
5 0
3 years ago
I have tried so hard and I cant figure thus out. The. entire problem needs to be finished, this is worth 20 points.
bija089 [108]

Answer:

No the ramp doesn’t meet the law. The slope is 4/50 which is 1/12.5

The slope of the ramp doesn’t meet the law because it’s slope is greater than 1/12. To adjust the ramp so that it meets the law, you could increase the height and/or the horizontal length to increase the slope so it is less than 1/12.


Step-by-step explanation:


5 0
3 years ago
Fill in the blanks to write the solutions to the quadratic equation. x2 + 2x + 10 = 0
Arada [10]
X2 + 2x + 10 =0
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8 0
3 years ago
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