Answer:
7.5 hours
Step-by-step explanation:
Time is inversely proportional to speed for the same distance. The bus speed is 40/50 = 4/5 of the car speed, so it will take 5/4 as long.
(5/4)·(6 h) = 7.5 h
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If you like, you can use the relations ...
distance = speed × time
time = distance/speed
to compute the distance between A and B, then the time at the lower speed:
distance = (6 h) × (50 mi/h) = 300 mi
time = (300 mi)/(40 mi/h) = 30/4 h = 7.5 h
a) I have attached an image of a probability tree diagram.
b) 0.02332 (please round to where you need)
The probability that Terri chooses a blue pen is 2/7. The probability that Terri chooses a red pen is 4/7. The probability that Terri chooses neither a red nor blue pen is 1/7.
2/7 x 4/7 x 1/7 = 0.02332
Hope this helps! :)
Answer:
Just give me the questions and ill do it
Step-by-step explanation:
Answer:
The numbers are 5 and 8.
Step-by-step explanation:
We know:
m
-n=3
And we know:
m
+n=13
Next, solve the first equation for m:
m-n+n=3+n
m-0=3+n
m=3+n
Then, substitute 3+n in the second equation and solve for n:
m+n=13 becomes:
(3+n)+n=13
-3+3+2n=-3+13
0+2n=10
2n=10
n=5
Now, substitute 5 for in the solution to the first equation and calculate m:
m=3+n becomes:
m=3+5
m=8
The solution is n=5 and m=8