Answer:
Step-by-step explanation:
So we have the equation:
Subtract 18 from both sides. The left cancels:
Multiply both sides by -2. The left cancels again:
Take the square root of both sides:
Since we're taking the square root, we need to use plus-minus.
Evaluate:
So, the solutions are -6 or 6.
Answer:
Step-by-step explanation:
Let
x -----> the number of hours
y ----> the total cost to rent a bike in dollars
we know that
The equation of the line in slope intercept form is equal to
where
m is the slope or the unit rate of the linear equation
b is the y-intercept or the initial value
In this problem we have
The unit rate or slope is equal to
The y-intercept (value of y when the value of x is equal to zero) is equal to
----> (fee charge)
substitute the values