An air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute. select all that apply to this situation. the slope is 1000 ft per minute. the balloon is falling at 1000 ft per minute. the y-intercept is 50 ft. the balloon falls at a rate of 50 ft per minute. the y-intercept is 1000 ft. the balloon begins to from an initial height of 1000 ft. the slope is -50 ft per minute. the balloon is falling at 50 ft per minute. it will take the balloon 20 minutes to reach the ground.

The correct options are 3, 4 and 5.

Step-by-step explanation:

It is given that an air balloon begins it's decent to the ground at 1000 ft above the ground and falls at a rate of 50 ft per minute.

It means the initial height of air balloon is 1000. So, the y-intercept is (0,1000).

The ball falls at a rate of 50 ft per minute. So, the rate of change is

The height of balloon is defined as

Where, x is time in minutes.

The balloon will reach the ground when h(x)=0

Therefore the options 3, 4 and 5 are correct.

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this