MATHEMATICS MIDDLE SCHOOL

Jonah flipped a coin 10 times. He flipped heads 3 times and tails 7 times. What is the experimental probability that Jonah will flip heads on his next flip?

Answers

Answer 1
Answer:

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➷ 3/10 = 0.3

The experimental probability would be 0.3

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The ground temperature at Brigham Airport is 12 degrees Celsius. The temperature decreases by 6.8 Celsius for every increase of 1 kilometer above the ground. What is the overall change in temperature outside a plane flying an altitude of 5 kilometers above Brigham Airport?

Answers


Actually, it's pretty easy.  The answer is -22.

You are flying from Denver to Albuquerque. The distance is 349 miles between airports and takes 1 hour and 20 minutes to travel once the plane is in the air. It takes approximately 2 hours to check in to the airport and get seated. It takes 1 hour after seating for the plane to take off. It takes 1 hour once at the air port to disembark, and 1 hour to get a rental car and get back on the road. The whole trip can be driven by car in 6 hours. Which trip is faster: Car or plane?

Answers

Answer:

  • car trip is faster than plane trip

Step-by-step explanation:

The less time the trip takes the faster the trip is.

1. Plane: build a table with the given times for flying and sum up every stage of the flying trip:

Stage                                                 time

  • On air                                       1 h: 20'
  • Check in and get seated        2 h
  • To take off                                1 h
  • Disembark                                1 h
  • Get a rental car                        1 h

                                                        ______

                                      Sum            6 h: 20'

2. Car.

  • Given total time: 6 h

3. Comparisson: 6 h < 6 h : 20' ⇒ car trip is faster than plane trip

Jenna flips to pennies 105 times how many times can she expect both coins to come up heads

Answers

53 because there is only 2 sides of a penny so 105 divided by 2 is 52.5 
Half heads. Half tails. Now I just have to get more characters but the first two sentences were the answers.

8v-3v-3+7v simplified

Answers

Your answer is 12v-3.

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Steps:

1. Group Like Terms. (8v-3v+7v-3)

2. Add Similar Elements. (8v-3v+7v=12v)

3. Finished. (=12v-3)

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Hope this helped :)

Describe the mental math steps you would use to find 7 (42)

Answers

Break 42 into 40 + 2. Multiply 40 x 7=280 and 2 x 7=14. Then add 280 + 14 = 294.
If you want to do step by step, you should start by breaking 42 into 40 and 2.
Then you multiply 7 by both 40 and 2. 7 times 40 is 280. 7 times 2 is 14. You could then add the two products and you get 294.
Or you could simply multiply 7 times 42.

Mr Diaz class is taking a field trip to the science museum there are 23 students on the class and a student admission ticket is $8 how much will the tickets cost?

Answers

You multiply 23 by 8, then you end up with 184$!
184$ is the total cost for the museum field trip
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