Which set of ordered pairs represents y as a function of x?
1 answer:
You might be interested in
Answer:
"4.71" is the correct answer.
Step-by-step explanation:
As we know, 45 envelopes addressed in 2 hours then,
⇒
and, 45 in 3 hours,
⇒
Now by adding all together, we get
⇒
⇒
and multiply it by "4.71", we get
⇒
⇒
Round it "310".
So that "4.71" is the right answer.
in case you wonder why we used 105 as LCD,
21 = 3 * 7
15 = 3 * 5
the "3" is common to both denominators, so we "use it once" and our LCD is then 3 * 7 * 5.