Janie has $3. she earns $1.20 for each chore she does and can do a fraction of chores. she wants to earn enough money to buy a cd for $13.50

write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Step-by-step explanation:

Let us call c the number of chores that Janie can do.

The money that Janie can earn with c chores is the product of that number of chores times the money earned with each chore $1.20, so:

1.20c

The total money that Janie can get is the money she earns doing chores plus the $3 which is the money she already has. Therefore:

1.20c+3

The total money that Janie can get should be at least the price of the CD $13.50, so the total money Janie can get should be greater or equal than $13.50. Therefore the inequality to determine the number of chores, c, Janie could do to have enough money to buy the CD is:

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

step-by-step explanation:

mean or average is 40.6