The expression is: 2y -20
Twice the sum of 'x' and 'y' . . . 2(x+y) The sum of twice 'x' and 'y' . . . (2x+y)
When 25 is decreased by 20% the result 20.
There is insufficient information for us to even begin to understand this question. Please edit the question to include more context or relevant information. There is something missing in "... half the sum of [???] and y decreased ...".
A number y decreased by 1 is equivalent to which of the following expressions? y - 1 y = 1 y + 1
2(x+y)=2x+2y
The expression is: 2y -20
2x-5 is twice a number decreased by 5.
The sum of x and y decreased by their product is (x + y)- xy.
y-8
Twice the sum of 'x' and 'y' . . . 2(x+y) The sum of twice 'x' and 'y' . . . (2x+y)
320 decreased by -20 = 300
x+y=20 x=2y-2 2y-2+y=20 y-2=20 y=18 x=2
The difference between 72 and 16
2(x+y) is twice the sum of x and y, and 2x+y is the sum of twice x and y
y-6
When 25 is decreased by 20% the result 20.
450 decreased 20% results in: 360