Question 4 (1 point)
2 answers:
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Answer:
Step-by-step explanation:
*Move terms to the left and set equal to zero:
4㏒(√x) - ㏒(3x) - ㏒(x²) = 0
*simplify each term:
㏒(x²) - ㏒(3x) - ㏒(x²)
㏒(x²÷x²) -㏒(3x)
㏒(x²÷x² / 3x)
*cancel common factor x²:
㏒()
*rewrite to solve for x :
10⁰ =
1 =
1 · x = · x
1x =
*that would be our answer, however, the convention is to exclude the "1" in front of variables so we are left with:
x =
Given:
Fixed salary = $1400
Additional salary = $500 each time he sells a car.
To find:
The equation for the situation and how much money he will make if he sells 7 cars.
Solution:
Let y be the total salary of the salesman after selling x cars.
He will earn an extra $500 each time he sells a car. So, extra money earned by him after selling x cars is 500x.
Total salary = Fixed salary + Additional salary
Substituting , we get
Therefore, the required equation for the given situation is and the salesman will earn $4900 if he sells 7 cars.