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Pavlova-9 [17]
3 years ago
7

(1 point) The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Re

cently, Southwest Air had the best rate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 20 Southwest flights and observing whether they arrive on time.

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

No. Southwest flights did not arrive on time.

Step-by-step explanation:

Please see attachment

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Is (-2, 0) the solution to the system below?
o-na [289]

Answer:

No, the answer is (-3/7, -33/7)

Step-by-step explanation:

y=-3x-6 can be rewritten as y+3x=-6

so, our two equations are:

1. y+3x=-6

2. 3y+2x=-15

we can multiply the first equation by 3.

1-1.3y+9x=-18

Now we can subtract the second equation from equation 1-1.

3y+9x=-18

<u>-(3y+2x=-15)</u>

7x=-3

x=-3/7

Now that we have x, let's plug it into an equation. I will plug it into the first equation.

y=-3(-3/7) - 6

y=9/7 - 6

y=-33/7

so the points are (-3/7, -33/7)

7 0
3 years ago
Read 2 more answers
Find the number whose arithmetic square root is 0.6
slavikrds [6]

Answer: 0.36

Step-by-step explanation:

6/10 x 6.10= 36/100

5 0
3 years ago
Ok ik but i need help with this i think i got it tho -275=2x -50
Zinaida [17]

Answer:

-112.5

Step-by-step explanation:

2x - 50 = -275

2x = -225

x = - 112.5

5 0
4 years ago
1/2t + 25; -10 PLEASE HELP
makkiz [27]
You need it to be solved?

4 0
4 years ago
Is it possible for eight employees to earn between $300 and $350 while the ninth earns $1250 per week, and the mean to be $430?
Deffense [45]
According to Google, yes.... any details, I have no idea, but I hope I helped in any way, haha
Good luck~~
4 0
3 years ago
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