Answer:
$ 103 for each person
Step-by-step explanation:
The sum of the left side of these two equations is equal to the same of the right side is these two equations
4x+8y + (-4x+2y) = 20 + 30
10y =50 ( x is eliminated)
y=5
Take this into the second equation
-4x +2y = 30
-4x + 2*5 = 30
x=-5
So x=-5
y=5
13a) y = 0.45x
13b) 52 * 0.45 = 23.4
13c) I will let u figure this one out
Okay w sI suede your would multiple them and get 70bhjbbb 70 would ok she the answer
X - y = 2400/6 = 400 where x = speed of plane and y = speed of wind.
x + y = 2400/5 = 480 - flying with the wind
adding the 2 equations
2x = 880
x = 440
Speed of the plane with no wind = 440 mph
