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mafiozo [28]
3 years ago
13

Your pump empties the water from a swimming pool in 6 hours. When your friend's pump is used together with your pump, the pool i

s emptied in 1.5 hours. How long (in hours) does it take your friend's pump to empty the pool when working alone? Hour(s)
Mathematics
1 answer:
Ivan3 years ago
7 0

(I'm sorry if this is wrong, I'm bad at math but this one was pretty simple really) 6-1.5=4.5

Hope this helps! Let me know

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ale4655 [162]

t = 2/3. Multiply the numbers in the parentheses by -1. It becomes 9t + -3t + -3 = 1. Combine like terms to get 6t + -3 = 1. Add 3 to both sides to get 6t = 4. Divide both sides by 6. t = 2/3

3 0
3 years ago
Help please........​
german
21x-9+63=180
21x+54=180
21x=126
x=6
4 0
2 years ago
When two variables have an inverse relationship, the slope is?
Temka [501]
When two variables have an inverse relationship, the slope is negatively correlated.
6 0
3 years ago
Adrian's CD player can hold six disks at a time and shuffles all of the albums and their songs. If he has thirteen CD's, how man
Crank
Adrian can put a total of 1716 combinations in the player. 

The formula to be used is as follows:

total combinations = n!/[r! *(n-r)!]
n = number of disks available  = 13
r = number of disks that be held = 6

= 13! = (13• 12•11•10•9•8•7•6•5•4•3•2•1)/(6! <span>• 7!)
</span>=1716

Thank you for posting your question. Feel free to ask me more.



6 0
3 years ago
2x(X-5)+6=24 X=numar necunoscut
finlep [7]

Answer:

2x² + 6 = 34x

Step-by-step explanation:

2x² - 10x + 6 = 24x

Collect like terms

2x² + 6 = 24x + 10x

2x² + 6 = 34x

5 0
3 years ago
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