What is the sum of x + y, when x = 3.1, and y = 5.4? a. –8.5 b. –2.3 c. 2.3 d. 8.5

Your answer should be x+y =3.1 + 5.4 = D. 8.5. I hope this helps! =^-^=

Choice D is correct.

Step-by-step explanation:

We  have to find sum of x and y.

Sum of x and y means to add the values of x and y

Given values of x and y are

x=3.1 ,  y=5.4

Sum of x and y=x+y

x+y=3.1+5.4

write down the numbers,one under the other,with the decimal points, add using column addition

     3.1

   +5.4

     8.5

x+y=8.5 which is the answer.

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.

idek

step-by-step explanation: