Answer:
$148.65
Step-by-step explanation:
8.875% = 14.4777875,
so the sales tax is $14.48.
$163.13 - $14.48 = 148.6522125,
so the total before sales tax is $148.65.
Answer:
Step-by-step explanation:
Solve for x:
3 sqrt(x + 8) = -4
Divide both sides by 3:
sqrt(x + 8) = -4/3
Raise both sides to the power of two:
x + 8 = 16/9
Subtract 8 from both sides:
x = -56/9
3 sqrt(x + 8) ⇒ 3 sqrt(8 - 56/9) = 4:
So this solution is incorrect
The solution is incorrect:
Answer: (no solutions)
The experienced window washer can wash all the windows in Mike’s house in 2 hours, which implies that in 1 hour he completes 1/2 of the job.
By the same logic, the new trainee completes 1/7 of the job in one hour.
If they work together, they complete
of the job in one hour, meaning that they complete the job in 14/9 of a hour.