Answer/Step-by-step explanation:
Given:
< 
To solve, collect like terms.
Subtract 5w from both sides
< 
< 
<
(incorrect)
The inequality given has no solution or an information is missing.
Answer:
(a) 71.00%
(b) 63.00%
Step-by-step explanation:
No optional features = 0.29
One feature = 0.34
Two features = 0.37
(a) The probability that an order requests at least one optional feature is 100% minus the probability of an order requesting no optional features:

(b) The probability that an order does not request more than one optional feature is 100% minus the probability of an order requesting two optional features:

For this problem, let x be the number of children and y for adults. Formulate the equations: 1st equation, x + y = 3,200 and 2nd equation 5x + 9y = 24,000. Re-arrange 1st equation into x = 3200 - y. Then, substitute into 2nd equation, 5(3,200-y) + 9y = 24,000. Then, solve for y. The 16,000 - 5y + 9y = 24000. Final answer is, y = 2000 adults went to watch the movie.