It was 99 degrees on aug.18th, 98 degrees on aug.19th, 104 degrees on aug.20th and 80 degrees on aug.21st. what was the average temperature for these four days?

95.25 Degrees

Step-by-step explanation:

Average ( Mathematical Meaning ):

The sum of a group of values divided by the number of values in the group.

So, we will set up our equation:

> 99 + 98 + 104 + 80

     = Average Temperature

                 4

> 381 / 4 = Average Temperature

> 95.25 = Average Temperature

I hope it will be understood.

If I have any inaccuracies please let me know.

Have a nice day and never stop questioning!

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)