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Rudik [331]
3 years ago
12

If a bicyclist traveled at 8:am to 8:18am a distance of 4.5 miles and from 8:18am to 8:45am a distance of 7.5 miles .What is the

average miles per hour?
Mathematics
1 answer:
Vinil7 [7]3 years ago
3 0

8 am at 0

8:18 at 4.5

8:48 at 7.5 miles ???

18 min = .3 hour

48 min = .8 hour

in first .3 hours speed = 4.5/.3 = 15 mph

in next .5 hours = speed = 3/.5 = 6 mph

average speed for the whole trip = 7.5 miles/.8 hours = 9.375 mph

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a red die is tossed and then a green die is tossed. what is the probability that the red die shows a six and the green die shows
vaieri [72.5K]
Assume that each of the 6 numbers has an equal probability of showing up for each die.

The probability of obtaining a six from the red die is 1/6, or
P(6 from the red die) = 1/6.
Similarly,
P(6 from the green die) = 1/6.

The tossing of the red die, followed by the tossing of the green die are independent events. Therefore
P(6 from the red die AND 6 from the green die) = (1/6)*(1/6) = 1/36.

Answer: 1/36

5 0
3 years ago
The time (in number of days) until maturity of a certain variety of tomato plant is Normally distributed with mean μ. You select
VLD [36.1K]

Answer: 60.93 < μ < 69.07

Step-by-step explanation: The true mean of a set of data is between an interval of values with a percentage of precision, e.g., a <u>99% confidence interval</u> means we are 99% confident the true mean is between the lower and upper limits.

To find the interval, use

x±z\frac{s}{\sqrt{n}}

z is z-score related to the % of confidence level

In this case, a 99% confidence interval is 2.576

x is sample mean

Calculating:

x=\frac{63+69+62+66}{4}

x = 65

65±2.576\frac{3.16}{\sqrt{4}}

65±4.07

Confidence Interval: 60.93 < μ < 69.07

Meaning that we are 99% sure the population means is between 60.93 and 69.07.

7 0
2 years ago
Solve y=3/2 plzzzzzzzzzzzzzzzzzzzzzzzzzz help
FromTheMoon [43]
Go to 1.5 on the y axis. Then make a horizontal line that stays on that elevation from 1.5
8 0
3 years ago
On October 1, Bandor Company sold land (that cost $30,000) on credit for $35,000. The buyer issued an 8%, 12-month note for this
Nadusha1986 [10]

Answer:

Check the explanation

Step-by-step explanation:

Journal entries are as follows:-

Date                 Account Titles                Debit                     Credit

Oct-01.            8% Note Receivable      $35,000.00

                                  Land                                                     $30,000.00  

                             Gain on sale                                             $5,000.00

                             (Sale of Land)  

Dec-31                 Interest Receivable          $700.00

                            Interest Revenue                                         $700.00

            (Interest revenue on Note for 3 mon. recognized)    

                      ($35,000 * 8% *3/12 = $700)  

8 0
3 years ago
When using blocking to deal with extraneous factors in an experiment, a
astra-53 [7]

Answer:

false

Step-by-step explanation:

i just took the test and guessed on it to help u ( i got it right) :p

3 0
2 years ago
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