<u>Step-by-step explanation:</u>
When you plug in 3 directly to the equation, you get 0/0
Since it is indeterminate, you have to use L'Hopital's Rule.
That means that you find the limit of the DERIVATIVE of the numerator and the DERIVATIVE of the denominator.
If we say there are 100 cars in a lot (It's an arbitrary number. You can use any number you want), Matthew can wash 100 cars in 14 hours or 7.14 cars an hour. Arianna can wash 100 cars in 11 hours or 9.09 cars an hour. Together, in an hour they can wash 7.14 + 9.09 or 16.23 cars. So to wash 100 cars it would take them 100/16.23 = 6.16 or about 6 hours.
You can do this with variables as well.
Matthew has a rate of x/14 while Arianna has a rate of x/11. Together their rate is x/14 + x/11= x/y
Divide both sides by x, you would get 1/14 + 1/11 = 1/y
Solve for y which would be around 6 hours.
Explanation is in the file
tinyurl.com/wpazsebu
Answer:
4/5 because you have to multiply the denominator by 20 and the numerator by 20 so then you will get your answer 80/100
Step-by-step explanation:
Answer:
poof I’m sorry for u
Step-by-step explanation:
that’s so sad
