Answer: It will take the Dolphin 2 hours to swim 40 miles. The penguin will take 8 hours. The swordfish will take 2/3 of an hour, that is 40 minutes, to travel 40 miles.
Step-by-step explanation: Divide the given distance by the unit rate given:
40/20=2 hours
40/5=8 hours
40÷60= 2/3 hour
This is the reverse of the process described in the question.
If the dolphin takes 2 hours to swim 40 miles, what is its unit rate? x ÷ y = R 40 miles÷2 hours= 20 mph.
40 miles ÷ 2/3 hour
3/2 × 40 = 60 mph
I hope this helps.
Answer:
14.2%
Step-by-step explanation:
Just trust me btw i'm too lazy to write a step-by-step
Answer:
Probability of event = 0.28
Step-by-step explanation:
At a fundraiser, a school group charges $8 for tickets for a "grab bag".
You choose one bill at random from a bag that contains 36 $1 bills, 19 $5 bills, 6 $10 bills, 7 $20 bills, and 3 $100 bills.
The total number of bills = 36 + 19 + 6 + 7 +3 =71 bills.
We have to find the probability that i will be able to win enough to pay my ticket that is he must get at least $8.
The price would be sufficient if he gets $10, $20 or $100 bills.
So the favorable cases = 20
Total cases = 71
hence probability =
= 0.28
The probability of him getting price greater than his ticket = 0.28
Answer:
Step-by-step explanation: