4401
400+
360+
320+
2804
2407
2007
160+
120+
80+
40+
Altitude (meters)
0
401 4
8 12 16 20 24 28 32 36 40 4 48 52 56 60 64 68 72
-804
-120+
-160+
-200+
-2407
-280+
-320+
-360+
-400+
Time (minutes
How long was each descent by 88 meters?

each desent by 88 meters was more than 4401

g

step-by-step explanation:

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)