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elena-s [515]
3 years ago
12

This is khan and I have 10 more problem academy. Some help please?

Mathematics
2 answers:
LenKa [72]3 years ago
7 0

Answer:

67 degrees

Step-by-step explanation:

the shape is a tryangle so it will have the same angle measurements, just make sure you look if it has the slash next to the letter or not in the future

Hope this helps girly!!

ziro4ka [17]3 years ago
6 0

Answer:

\angle{C}=54

Step-by-step explanation:

Let's first start by establishing that when it comes to a reflection, side lengths and angle measurements remain the same. With that being said, let's identify our angle measurements:

\angle{A=}\\\angle{B}= 67\\\angle{C}=\\\angle{A'}=59\\\angle{B'}=\\\angle{C'}=\\

As mentioned earlier, angle measurements will remain the same, so we can go ahead and identify the values of \angle{A} & \angle{B'}

\angle{A=59}\\\angle{B}= 67\\\angle{C}=\\\angle{A'}=59\\\angle{B'}=67\\\angle{C'}=\\

The sum of the angles in a triangle will always be equal to 180°.

Add the two identified angles of the original figure.

59+67=126

Subtract the sum from 180:

180-126=54

Therefore:

\angle{C}=54

_

Check your work by adding the three identified angle measurements to see if they measure to 180°:

59+67+54

=180

The answer is correct!

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Answer:

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

Step-by-step explanation:

Let's convert each time to minutes:

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Next, let's find the least common multiple:

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So let's say the volume of the tank is 6720 units.  The speed of each pump is therefore:

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Pump 2 = 6720 units / 80 minutes = 84 units/minute

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So the time to fill the tank is:

6720 units / (71 units/minute) = 94.65 minutes

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

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