A teacher wanted to fairly choose three students from a class of 23 to raise the school's flag. She assigned each student a two-digit number from 01 to 23. (Let's consider "01", "02", etc. to be two-digit numbers.) She then selected the following line from a random number table. 21215917917683658678870543168793205 Starting from the left, she used the line above to form two-digit numbers as follows. 212159 ... Using this new list and starting from the left, she chose three two-digit numbers from 01 to 23. She skipped numbers she had already chosen, the number 00, and numbers greater than 23. The students who were assigned these two-digit numbers were chosen. Which three students did the teacher choose? Student, Student, Student

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation:

maya’s expression will generate the wrong sum because she violated the commutative property.

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)