To solve the equation: 3.2 out of 7 equals x + 8 out of 5

To solve the equation: 3.2 out of 7 equals x + 8 out of 5




The original price of a certain TV set is 6600 yuan. The first price cut is 10%, and the second price cut is 10%. How much is the current price of this kind of TV set?


6600*(1-10%)(1-10%)
=6600*0.9*0.9
=66*9*9
=66*81
=5346



Solve the equation: three fifths x plus one third x plus ten equals X





The original price of a TV set was 2600 yuan. Later, it was sold at a lower price for two times. The first price was reduced by one twentieth and the second price was reduced by three Twenty-six percent. How much is the current price?


Price after the first price reduction: 2600 × (1-1 / 20) = 2470 (yuan)
Price after the second price reduction: 2470 × (1-3 / 26) = 2185 (yuan)
A: the current price is 2185 yuan



3 (2x + 7) = 32 solution equation
Because I'm in grade five, I didn't learn division. I took the test today. I can't do it


3(2x+7)=32
6x+21=32
6x=32-21
6x=11
X = 11 / 6



The price of a commodity has been raised by 10% twice in a row, and then it has been reduced by 20%. Has the commodity been sold now? What percentage has it made or lost?


(1+10%)×(1+10%)×(1-20%)
=1.1×1.1×0.8
=0.968
=96.8%
It's a loss
Loss 1-96.8% = 3.2%



66-x = 32 and 30 △ x = 5


66-X=32
x=66-32
x=34
30÷X=5
x=30÷5
x=6



The original price of a color TV set is 2500 yuan, but now the price has been reduced by 400 yuan. How much is the price reduction?


400 △ 2500 = 16%; a: reduced by 16%



(x-32) × 5 = 11 to solve the equation


(x-32)×5=11
(x-32)=11/5
x=11/5+32
X = 2 and 1 / 5 + 32
X = 34 and 1 / 5



How much is a yuan for each color TV set at 30% price reduction


70%a