Answer:
The mechanic worked 18.67 hours on the car.
Step-by-step explanation:
Given:
Total Cost on Repair = $325.
Mechanics charge = $45
Hourly Charge for Labor = $15
We need to find Number of hours Mechanic work on the car.
Let the number of hours worked by labor be 'x'
Now Total Cost on Repairs is equal to sum Mechanics charge and Hourly rate of labor multiplied by number of hours worked by labor.
Framing in equation form we get;
Solving the equation we get;
Using Subtraction Property we will subtract both side by 45 we get;
Now Using Division Property we will divide both side by 15 we get;
Hence the mechanic worked 18.67 hours on the car.
Answer:
<em>f(50) = 109.44943 feet</em>
Step-by-step explanation:
<u>Modeling</u>
The model of a situation where the skid distance f is measured against the car speed x can be expressed as:
Using this equation, we can predict the skid distance for a car that is driving at x=50 mph by substituting in the equation of the model:
f(50) = 109.44943 feet
The answer is D. because they are both the same ratio by squared-
6 squared is 36 and 11 squared is 121
So it's 6:11::36:121
A <u>counterexample</u> is something that proves a statement, or equation, wrong. A counterexample is used in math when someone creates a theorem, writes an equation, or creates a new rule and someone proves it to be false.
<u>For Example:</u>
Let's say that I said <em>an even number plus an odd number always equals an even number</em>. A counterexample of that would be 4 + 5 = 9, because 9 is odd, therefore proving the statement wrong.