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Solutions of binary linear equations A shopping mall plans to allocate 90000 yuan to buy 50 sets of TVs from the manufacturer. It is known that the manufacturer produces three different kinds of TVs. The ex factory prices are 1500 yuan for one type a TV, 2100 yuan for one type B TV, and 2500 yuan for one type C TV 1. If the shopping mall buys 50 sets of two different TV sets at the same time, it will cost 90000 yuan. Please study the purchase plan 2. In order to make the most profit when buying two different TV sets at the same time, which one should be chosen? 3. If the mall is going to buy 90 TV sets of three different models at the same time for 90000 yuan, please design a plan
1. If there are x sets in a, then the first case is: 1500x + 2100 (50-x) = 90000x = 25,50-x = 25, the first case is: 1500x + 2500 (50-x) = 90000x = 35,50-x = 15
Every step)
Hongxing Machinery Factory processes a batch of parts. After inspection, it is found that the ratio of Master Li's number of defective parts to the total number of parts is 2:25, and that of Master Zhang's number of defective parts to the number of qualified parts is 1:19. What are their respective qualification rates? Who makes the products with high quality?
In 2012, the monthly salary is 2000 yuan. I plan to increase your monthly income by 20% every year. By 2013, your monthly income will reach 2800 yuan
Is what the manager said right? Please calculate and explain
25/27=0.9259,19/20=0.95.
Master Li's pass rate is 92.59%, Master Zhang's pass rate is 95%
Skyhunter 002 is wrong
The proportion of the total is 25 + 2 = 27
19+1=20
Monthly income in 2012: 2000 × (1 + 20%) = 2400 yuan
Monthly income in 2013: 2400 × (1 + 20%) = 2880 yuan
From this, we can see that the monthly income in 2013 is not 2800 yuan, but 2880 yuan, so what he said is wrong
Welcome to adopt \ (^ o ^)/~
What is the reasonable price of Suzhou in 2012? A: 2000-3000 B: 3000-4000 C: 4000-5000 D: 5000-8000 e: more than 8000
c
It is estimated that if an enterprise carries out promotional activities, the annual sales volume of a certain product (i.e. the annual output of the product) is 10000 pieces
According to estimates and estimates, 2011, if an enterprise does not engage in promotional activities, then the sales volume of a certain product can only be 10000 pieces of a product; if it carries out promotional activities, 2011, 2011; if an enterprise does not engage in promotional activities, then the sales volume of a certain product can only be 10000 pieces of a product; if it carries out promotional activities, then the sales volume of the product will be the sales volume of the product, that is, the annual output of the product, that is, the annual output of the product, that is the annual output of the annual output of the product, million pieces, the annual sales and the annual promotion expenses x ten thousand yuan, the annual promotion expenses x ten thousand yuan, X ten thousand yuan, X Yuan, X Yuan, x, x, x, x, x, X \\\\\\\\\\\\\\\\xm; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; XM; It is known that the initial investment for the production of the product in 2011 is 80000 yuan, and the additional investment is 160000 yuan for every 10000 pieces of the product; the sales price of each piece of the product is 1.5 times of the average annual cost of each piece of the product; the pricing does not consider the promotion cost; Then the minimum annual promotion cost of the product is expressed as the function of the annual promotion cost X &; 10000 yuan &; and the maximum profit in 2011 is calculated;
The functions are not clear
RELATED INFORMATIONS
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