We assume that
.. (number in school)/(560 lunches sold) = (60 students sampled)/(40 eat lunch)
Then
.. (number in school) = 560*60/40 = 840
4x+4(3)+4(2)=y
4x+20=y
X equals the amount it cost for each ticket which is unknown. Y equals the total cost. Because the amount of the food is provided, it can be calculated unlike the tickets which is just left at 4x. The work for the snacks are upwards. Its mostly substitution.
Answer:
The answer to your question is 35x - 35y + 21
Step-by-step explanation:
Data
Simplify 0.5(20x - 50y + 36) - 0.25(-100x + 40y - 12)
Expand
10x - 25y + 18 + 25x - 10y + 3
Group like terms
(10x + 25x) + (-25y - 10y) + (18 + 3)
Result
35x - 35y + 21
The answer is the last choice
Answer:
x = 10.8
Step-by-step explanation:
We can use the law of sines to solve this problem
sin A sin B
--------- = ----------
a b
sin 81 sin 40
--------- = ---------
x 7
Using cross products
7 sin 81 = x sin 40
Solving for x
7 sin 81 / sin 40 =x
x=10.75599
Rounding to 1 decimal place
x = 10.8
