Question

Your electronics store sells two types of portable CD players. The first type, A, costs $70 and you make a $25 profit on each one. The second type, B, Costs $60 and you make a $20 profit on each one. You expect to sell at least 50 players this month and you need to make at least $1100 profit on them. You must order at least one of each type of player. How many of each type of player should you order to minimize your cost?

Answer 1

Smart idea. I didn't know you had already posted your question.

Answer 2

Cost Equation
C(a,b) = 70a + 60b

Profit Equation
P(a,b) = 25a + 20b

Answer 3

Amount Equation

a + b = 50

Answer 4

that all answer ??

Answer 5

x >= 0
y >= 0
x+y >= 50

Answer 6

Expected sales
a + b ≥ 50

Expected Profit
25a + 20b ≥ 1100

Answer 7

oh

Answer 8

You still have to find a and b

Answer 9

how? my math is not good and i not smart about math too

Answer 10

By solving it step by step.

Answer 11

how about cost

Answer 12

You only need two equations to set up a system

Answer 13

a + b ≥ 50 is formal right??

Answer 14

The variables you use don't matter

Answer 15

25a + 20b ≥ 1100
70a + 60b ≥ 1100

Answer 16

Bro, why are you making up equations?

Answer 17

wait i not finish

Answer 18

a ≥ 1
b ≥ 1
a + b ≥ 50
25a + 20b ≥ 1100

Answer 19

a + b ≥ 50
25a + 20b ≥ 1100

Multiply the first equation by 25

25a + 25b ≥ 1250

Subtract the two equations

25a + 25b ≥ 1250
25a + 20b ≥ 1100

5b ≥ 150
b ≥ 150/5
b ≥ 30
a ≥ 20

Answer 20

thank you so much

Answer 21

You can thank me with a medal