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kakasveta [241]
3 years ago
9

How do I answer this?

Mathematics
1 answer:
iVinArrow [24]3 years ago
3 0

Answer:

Step-by-step explanation:

43 + 39 + <1 = 180                    Three angles make up a triangle of 180 degrees.

82 + <1 = 180                            Subtract 82 from both sides

<1 = 98

<2 = <1                                      They are vertically opposite

<2 = 98

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What is the value of the expression when a = 5 and b = 2? 2a+b−3 A.6 B.9 C.11 D.24
Studentka2010 [4]

2a + b - 3

2(5) + 2 - 3

10 + 2 - 3

12 - 3 = 9

Answer - 9

Hope this Helps!!

6 0
3 years ago
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Andrew answered 21 out of 25 questions correctly on his math test. Written as a decimal, what portion of Andrew's answers were c
soldier1979 [14.2K]
Since we are calculating the amount that he got correct, we must divide the numerator by the denominator or make the denominator equal 100. I will do it the second way as it is easier in this case.

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8 0
4 years ago
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iragen [17]

Answer: 4 1/2

Step-by-step explanation:

4 0
3 years ago
A boat travels 12 Mph in still water. It can travel 18 miles upstream in the same time that it can travel 24 miles downstream. W
quester [9]

Answer:

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Step-by-step explanation:

Let the boat in t hours can travel 18 miles upstream, and  24 miles downstream.

Therefore, if the speed of the boat in still water is 12 mph and that of water is x mph , then we can write  

\frac{18}{t} = 12 - x ........ (1) and  

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Now, adding those two equations (1) and (2) we get,

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⇒ t = 1.75 hours.

Now, from equation (1) we get

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Therefore, the current of the water is 1.714 mph. (Answer)

4 0
3 years ago
Please, 10 points if you answer this question for me, in less than 21 hours.
adoni [48]
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d = ?

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3 0
3 years ago
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