profit=f(x)
so solve for f(x)=1000
1000=70n-400
add 400 to both sides
1400=70n
divide both sides by 70
20=n
20 students need to be enrolled to make a profit of 1000.00
The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y
(2,5) , (6,8)
Distance formula :
d = √(x₂-x₁)² + (y₂-y₁)²
Simply plug in the values.
d = √(6 - 2)² + (8 - 5)²
Simplify.
d = √(4)² + (3)²
Simplify.
d = √16 + 9
Simplify.
d = √25
So, the distance is 5
~Hope I helped!~
Answer:
30.31%
Step-by-step explanation:
Mark up on selling price is given by markup*100%/selling price
In this case, markup is given as $870 while the selling price is $2870 hence the percentage of narkup to selling price will be given by 
Therefore, the percentage of markup to selling price is approximately 30.31%