Answer:
$20
Step-by-step explanation:
18 ten-dollar bills = 18×10
18×10=$180
He gave 16 of the bills = 16×10
16×10=$160
Now, the question is asking how much money he kept. This refers to the total amount of money, not just how many bills he kept.
(18×10) - (16×10)
180 - 160 = 20
Therefore, Jack kept $20 from selling the tickets.
Answer:
5.92 min
Step-by-step explanation:
1/11 = person A's rate
1/21 = person B's rate
1/33 = person C's rate
Let t = time working to gether
rt = am't of work done
(1/11)t = work done by person A
(1/21)t = work done by person B
(1/33)t = work done by person C
(1/11)t + (1/21)t + (1/33)t = 1
231((1/11)t + 231(1/21)t + 231(1/33)t = 231
21t + 11t + 7t = 231
39t = 231
t = 5.92 min
I did that in super detail for you. Note: If n = the time to do a job alone, then 1/n = the rate of speed in doing the job. And, the rate times the time on the job = am't of work done.
Increasing by 5!!!!!!!!
hope this helps!!!!!:);)
807 divided by 7 = 115.2857143
