Hot air balloons generally descend at a rate of 200 to 400 feet per minute. four balloons descend 295 feet per minute for 7 minutes. find the total change in altitude for all 4 balloons.

make a proportion

Let x = the amount of feet descended in 3 minutes (thus the total change of altitude of the balloon)

320 (feet per minute) / 1 (minute) = x (feet per minute) / 3 (minutes)

1) Divide: 320/1 = 320.
2) Multiply: 320 x 3= 960.

The balloon that descends at a rate of 320 feet/minute (so, every minute, it descends 320 feet) descends a total of 960 feet in 3 minutes.

The balloon's total change in altitude is -960 feet.

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw