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fiasKO [112]
3 years ago
10

Two pipes A and B can fill a petrol tanker in 15 and 12 hours respectively. A third pipe C can empty the whole tanker in 6 hours

. If the tanker is full and all the three pipes are opened together, how long would they take to empty it? ​
Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

30 minutes

Step-by-step explanation:

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Solve for x and y:<br> x = 5 – 2y<br> 4y = 15 - 2x
Vika [28.1K]

Answer:

No solution.

Step-by-step explanation:

So we have the system of equations:

x=5-2y\\4y=15-2x

We can solve this by substitution. Substitute the first equation into the second. Thus:

4y=15-2(5-2y)

Distribute the right:

4y=15-10+4y

Subtract 4y from both sides:

0=15-10

Subtract the right:

0=5

As you can see, this statement is not true. In other words, the system of equations have no solution (likely because the lines are parallel).

And we're done!

7 0
3 years ago
Any can help ? And explain please and thank you
Hatshy [7]

Answer:

d

Step-by-step explanation:

6 0
3 years ago
This is for anyone who has ever been cheated on before...
Evgen [1.6K]

Answer:

thank you

Step-by-step explanation:

4 0
3 years ago
80 POINTS! WILL GIVE BRAINLY
PSYCHO15rus [73]

Answer:

Step-by-step explanation: No, Gavin is not correct because 284.42 is less than 400 the equation is 200(1+0.09/2)^8 when solved you get 284.42 which is not enough.

Step-by-step explanation:

simplifying this

Ok so do 0.09/2 which is 0.045 then add 1 so you get 200•1.045^8 then you do 1.045^8= 1.422100.... so I did 1.422100•200 to get the final answer of 284.42

8 0
3 years ago
Read 2 more answers
Please help asap. thank you very much
Simora [160]
Formula being mx+b= 15x+150

Slope would be 15 & y-intercept being 150 since that is where you started.
6 0
3 years ago
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