The sale price = 99(1 - 0.1)(1 - 0.25)(1 - 0.08) = 99 * 0.9 * 0.75 * 0.92 = $61.48
Answer:
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Step-by-step explanation:
Solution: 15/2 = 7.5
7/2 = 3.5
The smaller number = 7.5-3.5 or 4, and the larger number is 7.5+3.5 or 11. Answer.
218.7 / 6.75 = 32.4 you divide the area by the base
The function is: f ( x ) = - x² + 60 x - 116 is in the form: f ( x ) = a x² + b x + c
Part A:
x = -b / 2 a = - 60 / ( - 2 ) = 30
Then we will charge it into the function:
f ( 30 ) = - 30² + 60 · 30 - 116 = - 900 +1,800 - 116 = 784
The vertex is ( 30, 784 ).
It means that the maximum profit is $784, when 30 windshields are repaired.
Part B:
x 1/2 = ( -60 +/- √(3600 - 464 )/ (- 2 ) = ( -60 +/- 56 ) / ( - 2 )
x 1 = 2, x 2 = 58
It means that a shop has to repair at least 2 windshields and not more than 58 windshields for making a profit.
Answer:
B
Step-by-step explanation:
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