Ahot air ballon was 240 ft above the ground. it decreased its altitude by 6 1/2 ft per min for 15 min, and the increased its altitude 9 ft. what was the ballon overall change in altitude? part c what is the hot air ballon elevation. partnd suppose the hot ail ballon rose another 150 ft. write an expression to model the situation. plz o will give you 100 points and mark you brainlest

All you do is multiply 16 1/2*15, since it drops ιи 16 1/2 feet every minute then you must add 9 to it because then they gained 9 feet then all you have to do then is take your answer and subtract it fron 240 feet.

Ok in part c 16 1/2*15=97 1/2 but you still need to add the 9 feet so that becomes 106 1/2. Then you must subtract that from 240 so that then becomes 133 1/2 so the elevation is 133 1/2 Feet

In part D. The equation should be

240-(16 1/2*15)+9(+150)=283 1/2

step-by-step explanation:

just plug in each number for x and see which ones work and don't

30

step-by-step explanation:

times by times