Four friends want to wake a vacation together, so each one gets a part-time job. each person has 8 weeks to save $720 for the vacation. analyze the four individual plans below and decide which of the four people will reach his or her goal of saving $720 for a vacation. friend a: works 13 hours per week at $6.95 per hour friend b: works 15 hours per week at $5.85 per hour friend c: works 18 hours per week at $5.25 per hour friend d: works 11 hours per week at $7.80 per hour. a. a and c b. a and d c. b and c d. b and d

the answer is A. Friends A and C. Hope this helps!

Step-by-step explanation:

answer: the answer is d

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)