If 4140 ppl fill a concert hall 90% full,
=> 4140/x=.9 for x-maximum number
=>x=4140(10)/9=x
Answer:
-3672535.39936
Step-by-step explanation:
A(b-c)=d solution is number 2. Attachment added
3/20x = 9.......with x being the total cost of the food
x = 9 / (3/20)
x = 9 * 20/3
x = 180/3
x = 60 <===
Step-by-step explanation:
(4y - 3)²
= (4y) ² - 2 * 4y * 3 + 3²
= 16y² - 24y + 9