WHOEVER ANSWERS FIRST GETS BRAINLIEST

x+4=10, x-3=13

Step-by-step explanation:

9.)  x = the number of slices of pizza that Adam shares.

    Adam doesn't share 4 slices, meaning that is the leftover amount

    10 is the number of all the slices of pizza before Adam share

The amount that he shares plus the amount that he doesn't share has to equal the total amount, which is 10. therefore the only possible equation would be x+4 = 10

10.) x is the number of dollars in her wallet BEFORE she makes the transaction. if she pays with 3 dollars, then that would be x - 3. it states that the number of dollars left AFTER the transaction is 13, which would be

x - 3 = 13

answer: idk

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)