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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. Round to the nearest tenth if necessary.
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Answer: 41.1

Step-by-step explanation:

To find the value of x, we need to use SOH-CAH-TOA. SOH-CAH-TOA is since, cosine, and tangent. The O, A, H stands for opposite, adjacent, and hypotenuse respectively.

Looking at the figure, we see 47°. The labelled angles are adjacent and the hypotenuse. Therefore, we use CAH or cosine.

cos(47)=\frac{28}{x}             [multiply both sides by x]

xcos(47)=28           [divide both sides by cos(47)]

x=\frac{28}{cos(47)}

When we plug that into a calculator, we get x=41.1.

5 0
3 years ago
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NISA [10]

Answer:

I think No

Explanation:

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<h2>hope \: this \: helps</h2>

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3 years ago
Please someone help me! asap!!
kramer

Answer:

Last option= 30 minutes

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Draw two lines that never intersects and those are parallel line. A compass and straightedge helps you make the lines straight.

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