A computer is now 215 yuan lower than the original price, just 800 yuan lower. How much is the original price of this computer?

A computer is now 215 yuan lower than the original price, just 800 yuan lower. How much is the original price of this computer?


A: the original price of this kind of computer is 6000 yuan



1. A rectangular piece of paper is 50 cm long and 30 cm wide. In its four corners each cut a side length of 5 cm square, and then folded into a rectangular carton without cover. What are the bottom and side areas of this carton?
2. Mr. Wang is going to make a 40x35x20cm gift box.
① If the gift belt is 30cm, how many cm is it?


1. Bottom area (30-5-5) * (50-5-5)
. side area (30-5-5) * 5 * 2 + (50-5-5) * 5 * 2
What do you mean



Mathematics problems of winter vacation homework in grade one of junior middle school
Because of the wrong operation symbol, a student mistook an integral minus the polynomial ab - 2BC + 3aC for adding the polynomial. The result is 2BC - 3aC + 2Ab. Find the correct answer to the original problem
(this topic is the last one on page 20 of study and life of grade seven in winter vacation of junior high school.)


Let the original integer be micro x, then x + (ab - 2BC + 3aC) = 2BC - 3aC + 2Ab, and the solution is x = AB + 4bc-6ac. The correct answer to the original question is x-ab - 2BC + 3aC = 6bc-9ac



A commodity with a purchase price of 80 yuan can still make a profit of 5% after 70% discount. What's the price of this commodity______ Yuan


If the selling price is set to x, there will be
x*0.7=80*(1+0.05)
=>x= 120



The purchase price of a piece of clothing is 200 yuan. If you sell it at 80% of the price, you can make a profit of 72 yuan. If a customer actually buys it at a 70% discount, how much does the store actually make


Set the list price as X: 80% X-200 = 72 80% x = 72 + 200 80% x = 272 x = 272 / 80% x = 340340 * 70% - 200 = 38. It's OK: (200 + 72) / 80% * 70% - 200 = 38. It's easy to calculate the normal list price as 340 before calculating the profit



How much is the price of a garment if it is purchased at 80 yuan and sold at a 60% discount on the marked price with a profit of 52 yuan?


(80 + 52) △ 60%, = 132 △ 0.6, = 220 yuan; a: the price of this dress is 220 yuan



The price of a dress is 80 yuan, and you can earn 52 yuan after 30% discount. How much is the price of this dress


A flute of autumn wind leads the short wind. The white clouds look for the fairyland



The price of a dress is 150 yuan, and it is sold at a 20% discount. In this way, the shop still has 20% profit to make. How much is the purchase price of this dress?


Set: purchase price X Yuan
X(1+20%)=150x80%
1.2X=120
X = 120 divided by 1.2
X=100



How much is the price of a garment if it is purchased at 80 yuan and sold at a 60% discount on the marked price with a profit of 52 yuan?


(80 + 52) △ 60%, = 132 △ 0.6, = 220 yuan; a: the price of this dress is 220 yuan



If the purchase price of a garment is 50 yuan and you can still earn 34 yuan by 60% off the marked price, the marked price is______ Yuan


(50 + 34) △ 60%, = 84 △ 60%, = 140 yuan; answer: the price is 140 yuan