Ceramic art recruitment

(1) It takes (35-m) minutes to produce each type B ceramic;

(2)① According to the meaning of the question, 3m+2(35-m)=85.

Solution: m= 15

∴ Time required to produce each type B ceramic: 35-m=20 minutes.

According to the meaning of the question: 15x+20y=8×25×60.

Simplification: y=? 34x+600

∴ functional relationship between y and x: y=? 34x+600(5 points);

(2) Assume that the piece-rate wage for producing each A-type ceramic is A yuan, and the piece-rate wage for producing each B-type ceramic is B yuan.

According to the meaning of the question, a+b = 2.83a+2b = 6.6. Solution: a = 1b = 1.8.

Piece rate of A-class ceramics will increase by P yuan, and Xiao Wang's monthly salary can only be 1200 yuan.

According to the meaning of the question:1200 = (1+p) x+(1.8+0.2) (? 34x+600)+ 100

Simplification: p = 12? 100x

∫p = 100 x is an inverse proportional function, and k = 100 > 0.

∴p decreases with the increase of X.

∴ at p = 12? In 100x, p increases with the increase of x.

And ∵x≥209y means x≥209 (? 34x+600)

Solution: x≥500

∴ When x=500, P reaches the maximum, at this time, p = 0.3.

A: Piece rate of A-class ceramics should be increased by at least 0.3 yuan, and Xiao Wang's monthly salary can only be 1.200 yuan.