Joely's tea shop, a store that specializes in tea blends, has available 45 pounds of a grade tea and 70 pounds of b grade tea. these will be blended into 1 pound packages as follows: a breakfast blend that contains one third of a pound of a grade tea and two thirds of a pound of b grade tea and an afternoon tea that contains one half pound of a grade tea and one half pound of b grade tea. if joely makes a profit of $1.50 on each pound of the breakfast blend and $2.00 profit on each pound of the afternoon blend, how many pounds of each blend should she make to maximize profits? what is the maximum profit?

105 pounds of breakfast and 90 pounds of afternoon packages

profit = $337.5

Step-by-step explanation:

Defining:

Xb: number of 1 pound breakfast packages produced

Xa: number of 1 pound afternoon packages produced

The optimization problem is the following:

Maximize profit = Xb * $1.5 + Xa * $2

Subject to

Xb*1/3 <= 45

Xb*2/3 <= 70

Xa*1/2 <= 45

Xa*1/2 <= 70

45 is the total amount of A grade tea; 70 is the total amount of B grade tea;    

In the figure we can see feasible region (every point in this zone fulfill restrictions). We know that optimal point will be in the corner of the feasible region, in our case points are (0,0) (0,90) (105, 90) (105, 0). Given that we want to maximize, it is obvious that the answer is Xb =  105 and Xa = 90. Replacing in profit's equation: 105 * $1.5 + 90 * $2 = $337.5

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.