Answer:
Dorsey = 4.8 hours
Campbell = 24 hours
Step-by-step explanation:
It takes "x" hours for Dorsey
So, it will take 5 times more for Campbell, so
It takes "5x" hours for Campbell
Rate is inverse of time, so rates are:
Dorsey: 1/x
Campbell: 1/5x
We know Rate * Time = Work
When together, it takes 4 hours to finish a work, so we can write:
Solving for x, we get the time of Dorsey:
Dorsey takes 4.8 hours alone
Campbell takes 4.8 * 5 = 24 hours alone
Answer:
B: For every 3 rabbits there are 8 total animals.
Step-by-step explanation:
There are 16 total animals, 6 of which are rabbits. Meaning that half of the rabbits 3, would correspond to a TOTAL animal count of 8 including those three rabbits.
Step-by-step explanation:
here's the solution: -
Average time taken by sarah :
=》
=》
=》
average time taken by sarah = 70.9 seconds
now,
average time taken by katie :
=》
=》
=》
average time taken by katie = 78.9 seconds
so, sarah is more efficient (faster) than katie.
i agree with sarah.
cuz, she took less time than katie.
Answer:
2(3 + 8k)
Step-by-step explanation:
given : 6+16k
note that the GCF of 6 and 16 is 2, hence we can factor 2 out of the expression
6+16k
= (2)(3) + (2)(8k)
= 2(3 + 8k)
