The length of the trip at a distance of 300 miles and the given times are
- 6 hours
- 30/7 hours
- 300/x hours
- 300/x + 10 hours
- 300/x - 5 hours
<h3>How to determine the length of the trip?</h3>
The distance is given as:
d = 300
The formula is represented as:
d = r * t
Make t the subject
t = d/r
Substitute 300 for d
t = 300/r
When r = 50 mph,
t = 300/50
Evaluate
t = 60
When r= 70 mph, we have
t = 300/70
Evaluate
t = 30/7
When r = x, we have
t = 300/x
When r = x + 10, we have
t = 300/x + 10
When r = x - 5, we have
t = 300/x - 5
Read more about rates and speed at:
brainly.com/question/4931057
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<u>Complete question</u>
A train traveled 300 miles. How long did the trip take if the train was traveling at a rate of:
Note * Use the d=rt formula (distance = rate * time). NOTE: You may not be able to solve for the variable. If you do not have enough information to solve for the variable then write the equation.
Answer: 29/139
Explanation:
Total student: 139 (66 boys/73 girls)
Football: 56 student (28 boy/28 girl)
Tennis: 54 student (27 boy/ 27 girl)
Running: 29 student (18 girls/11 boys)
The probability that a student chose running is 29/139
Your answer is b and c :)
Answer:
C. Estimate the probability using your simulation.
Step-by-step explanation:
Answer:
Per phone, there is an expected profit of $206.69. This means that the company can expect a profit in the long term for their smart phones.
Step-by-step explanation:
Ten out of every 75 phones they sell are having issue with the touchscreen
10/75 = 0.1333
0.1333 of the phones have issues with the touch.
The other 1-0.1333 = 0.8667 do not have issues with the touch.
Check whether the company can expect a profit in the long term for their smart phones.
0.1333 of the time, loss of $400.
0.8667 of the time, profit of $300.
So the expected earnings per phone will be:
E = -0.1333*400 + 0.8667*300 = $206.69
Per phone, there is an expected profit of $206.69. This means that the company can expect a profit in the long term for their smart phones.