A water balloon is thrown from a window. The height of the balloon can be found using the equation
y = -7.5x + 45, where x is the time in seconds the balloon has been in the air.
How many seconds will it take for the balloon to hit the ground?
To find the time it takes for the balloon to hit the ground, we need to find the x value at which y = 0.
Setting y = 0 in the equation, we have:
0 = -7.5x + 45
Rearranging the equation, we get:
7.5x = 45
Dividing both sides by 7.5, we get:
x = 45 / 7.5
x = 6
Therefore, it will take the balloon 6 seconds to hit the ground.