Steelco manufactures two types of steel at three different steel mills. during a given month, each steel mill has 200 hours of blast furnace time available. because of differences in the furnaces at each mill, the time and cost to produce a ton of steel differs for each mill. the time and cost for each mill are shown in table 1. each month, steelco must manufacture at least 500 tons of steel 1 and 600 tons of steel 2. formulate an lp to minimize the cost of manufacturing the desired steel. also clearly define the decision variables
steel 1 steel 1 steel 2 steel 2
cost time (minutes) cost time (minutes
mill 1 $10 20 $11 22
mill 2 $12 24 $9 18
mill 3 $14 28 $10 30

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x