Answer:
See Explanation
Step-by-step explanation:
<u>Define the variables</u>
Let the entry fee be c and the hourly rate be m
Let the number of hours be x and the total amount be y
<u>Work to solve</u>
For Sami's skate
and 
For Brad's skate
and 
<u>The equations</u>
The equation is derived using: 
For Sami's skate

For Brad's skate

<u>When the cost are the same</u>
To do this, we equate both expressions
i.e.




i.e. the cost are the same at the 4th hour
<u>What is the cost</u>
Substitute 4 for x in any of the equations



<em>The cost is $14.00</em>
Answer:
4221 birhs
Step-by-step explanation:
. Find the mean number of births per day, then use that result to find the probability that in a day, there are 15 births.
To find the % sales tax, you simply need to find that percentage of the price.
5% of $98.75 is $4.94
98.75x0.05=4.94
8% of $98.75 is $7.90
98.75x0.08=7.90
6.5% of $98.75 is $6.42
98.75x0.065=6.42
Therefore, of the sale amount $98.75,
5% sales tax is $4.94
8% sales tax is $7.90
6.5% sales tax is $6.42
If you want to find the total price, add the sales tax to the sale price.

So, the two equal payments will be $78.50