Jordan is using a number line to model the division expression Negative 24 divided by 12. What should be a step in his work? Draw a chain of bounces to the right, 12 units wide, starting at –24 and ending at 12. Draw a chain of bounces to the left, 12 units wide, starting at 0 and ending at –24. Draw a chain of bounces to the right, 12 units wide, starting at 0 and ending at 24. Draw a chain of bounces to the left, 12 units wide, starting at 24 and ending at 0.

Draw a chain of bounces to the left, 12 units wide, starting at 0 and ending at -24.

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

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)