Answer:
Zac Made 28 Jackets
Step-by-step explanation:
The way I solved it is by first dividing 48 by 2.
After that I subtracted 8 from Tyra's jackets and then guessed and checked.
I eventually got to the point where i found that Tyra made 20 jackets and Zac made 28 making up to 48 jackets in total.
Answer:
$0.125 , so 12.5 cents per pencil
Step-by-step explanation:

You can double check this by doing
, making sure it equals 3.
1/3 because reciprocal is the opposite
You have the following function:

Derivate implictly the previous expression, as follow:

Where you have used that:

Then, the implicit derivative of the given expression is:

Next, solve for y' as follow:
