27. MANUFACTURING A shoe manufacturer makes outdoor
and indoor soccer shoes. There is a two-step process for
both kinds of shoes. Each pair of outdoor shoes requires
2 hours in step one and 1 hour in step two, and produces
a profit of $20. Each pair of indoor shoes requires 1 hour in
step one and 3 hours in step two, and produces a profit
of $15. The company has 40 hours of labor available per
day for step one and 60 hours available for step two.
What is the manufacturer's maximum profit? What is
the combination of shoes for this profit?​

Respuesta :

Answer:

Maximum profit = $840

For maximum profit, number of outdoor shoes will be 12 and indoor shoes 16.

Step-by-step explanation:

Manufacturer makes outdoor and indoor soccer shoes.

The company has 40 hours for step one and 60 hours available for step two.

Let the company manufacture number of outdoor shoes = x and indoor shoes = y

For each pair of outdoor shoes,

It takes 2 hours in step 1 and 1 hour in step 2 and produces a profit of $20.

For each pair of indoor shoes,

It takes 1 hour in step one and 3 hours in step 2 and produces a profit of $15.

For step one inequality will be,

2x + y ≤ 40 ------(1)

For step two inequality will be,

x + 3y ≤ 60 ------(2)

Multiply inequality (2) by 2 and subtract it from inequality (1).

2(x + 3y) - (2x + y) ≤ 60(2) - 40

2x + 6y - 2x - y ≤ 120 - 40

5y ≤ 80

y ≤ 16

Now from equation (2)

x + 3(16) ≤ 60

x + 48 ≤ 60

x ≤ 60 - 48

x ≤ 12

To manufacture 12 pairs of outdoor shoes, profit produced = $20×12

= $240

To manufacture 16 indoor shoes, profit earned = $15×16

= $240

Maximum profit produced = $240 + $240 = $480