The rodriquez Family is taking a 1,311 mile train ride. If the train travels 57 miles per hour, how many hours will the ride las
2 answers:
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Remember that an extraneous solution of an equation is a solution that emerges from the algebraic process of solving the equation but is not a valid solution of the equation.
First, we are going to solve our equation algebraically:
Step 1 simplify the equation:
Step 2 subtract 5 from both sides of the equation:
Step 3 square both sides of the equation:
Next, we are going to replace our solution in our original equation and check if it is a valid solution:
Since 9 is not equal to 1, is not valid solution of the equation; therefor it is an extraneous solution.
We can conclude that the correct answer is: x = 16, solution is extraneous
Let
x--------> the amount in dollars that Luis make last week
we know that
------> equation that represent the situation
solve for x
Divide by both sides
therefore
<u>the answer is</u>