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SashulF [63]
3 years ago
7

Q bisects PR, PQ=3y, and PR=42. Find y and QR.

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
3 0
|PR| = |PQ| + |QR|; |PQ| = |QR| conclusion |PR| = 2|PQ|

|PQ| = 3y; |PR| = 42; |QR|=?

subtitute

42 = 2(3y)
6y = 42    |divide both sides by 6
y = 7

|QR| = 3(7) = 21
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Answer:

5 more games to be won for the 50% success rate.

Step-by-step explanation:

Total number games played = 500

Number of successful games = 49% of 500

                                                 = 500 × \frac{49}{100}

                                                 = 245

Number of successful games for the success of 50% = 500 × \frac{50}{100}

                                                                                        = 250

Therefore, number of game you have to win more = 250 - 245

                                                                                    = 5 games

4 0
3 years ago
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Answer:

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Step-by-step explanation:

So first thing is that slope intercept form is setup like this

y=mx+b

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as y goes down 2 x goes up 5

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the y intercept is at (0,-1) so the y intercept is -1

therefore the answer is

y=-\frac{2}{5} -1

have a great day :)

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Step 2: Set factors equal to 0.

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