So, Katherine can do 0.1 of the job per hour. (if she needs 10 hours for the job, each hour she can do the whole divided by the time, so 1/10, which is 0.1)
if in two hours she and Marina can be done, then Marina will do 1(the whole job)-2/10 (twice as much as she can do in an hour)=0.8 of the job. So if Marina does 0.8 of the job in two hours, each hour she will do half of it: 0.4 - and this is the correct answer
Answer:
Yessssssss
Step-by-step explanation:
A function cannot be assigned more than one output for each input. Since each input has one output it is a function
Answer:
f(x) = 8.14x + 300
Step-by-step explanation:
Answer:
z= -55 / 5-y
the line is a divided by sign you put 55 on top and the 5-y on bottom
