There is no proper order to multiply in this case.
The answer is 72 either way!
Answer:
let
c = the number of covered pavilion tickets sold
l = the number of lawn seats tickets sold
one evening 1400 concert tickets were sold
c + l = 1,400
total receipts were $30,000
30c + 15l = 30,000
by solving the system of equations
c + l = 1,400
30c + 15l = 30,000
we find
c = 400 covered pavilion seats
l = 1,200 lawn seats
by plugging the correct numbers into each other
Answer:
<em>The height of the plane is 405 meters</em>
Step-by-step explanation:
<u>Trigonometric Ratios</u>
The situation can be represented as shown in the image below. The ground, the height H, and the direct distance to the plane to the shipwreck form a right triangle, where the trigonometric ratios stand.
Since the known distance is adjacent to the angle, and the required height is opposite to the given angle, we use the tangent ratio, defined as:
We need to find H, so we solve for H:
H=405 m
The height of the plane is 405 meters
Multiply both sides by 12 to cancel out the denominator on the x side. This way we can isolate x. x=36/5