The balloon ascended 1300ft.
WORK:
3*60=180
180+15=195
195/60=3.25
3.25*400=1300
That is why your answer is 1300ft. Enjoy!
8a . the constant of proportionality is 2. 8b . the constant of proportionality is 3. 9. Nathan should order 1 cup of each food on the chart. <span />
5x-7y=14
-5x -5x
^
Subtract 5x from both sides
-7y=-5x+14
Divide by -7 by all of the numbers
y=-5/7x-2
Subtract 6 from both sides, you get 1/3x=-14
Now multiply both sides by there, hence x=-42
