Question

When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?

Answer 1

im sorry i don't know how to help you with this... :(

Answer 2

:(

Answer 3

i can recommend you ask @iGreen @butterflydreamer or @tkhunny

Answer 4

cool

Answer 5

if it helps i gave you a medal

Answer 6

I would start with this part:
0.5(20x – 50y + 36)

you can "distribute" the 0.5 (which is 1/2 )
that means multiply each thing (term) inside the parens by 1/2
to multiply you write 1/2 * in front of each term

Answer 7

can you do that?

Answer 8

0.5*(20x – 50y + 36) right here?

Answer 9

the idea is to write 0.5 in front of *each* term

Answer 10

see i knew someone would come to the rescue

Answer 11

10x+25y+18

Answer 12

:o nice

Answer 13

close. but you should do it in steps
0.5(20x – 50y + 36)
0.5*20*x + 0.5* -50*y + 0.5*36

Answer 14

Yeah, you got the sign wrong.

Answer 15

notice you got the "y" part with the wrong sign

Answer 16

\(\sf 0.5 \times -50 \ne 25\)

Answer 17

can you try again?

Answer 18

i got it wrong?

Answer 19

you got
10x+25y+18

but if you start with
0.5(20x – 50y + 36)

and distribute the 0.5, like this:
0.5*20*x + 0.5* -50*y + 0.5*36

now simplify the "number" part (and leave the letters as they are)

Answer 20

i dont understand why you're multiplying the 0.5 with the letter and the number

Answer 21

first, 20x is short for 20 * x (twenty times "x")
when we multiply a number times a letter, it's easy. we just write 20*x or 20x (we don't bother showing the multiply sign. ok so far?

Answer 22

oh true

Answer 23

so 0.5*20x=10x

Answer 24

next, think of the parens as a "package" with "stuff" inside
(20x – 50y + 36)

when we write
0.5 * (20x -50y +36)
think like this: I want 0.5 of the whole package

in other words, 0.5 = 1/2 and 1/2 (20x -50y +36) means I want 1/2 of the package
and that means 1/2 of each thing inside.
following ?

Answer 25

oh snap I have to go he bell rang I'm going to come after school lol

Answer 26

bye