Question

What is the value of the expression x + (–y)

when x = 1.2 and y = –10.7?


A. 9.5

B. 11.9

C. –11.9

D. –9.5

I think that it is D

Answer 1

1.2+10.7=

Answer 2

B

Answer 3

it is -10.7

Answer 4

x + (-(-10.7)) = 11.9

Answer 5

it's because you have x + (-y) when put plug -10.7 in to y you have -1*-10.7 which makes it +10.7

Answer 6

in other words it just cancels out the negative.

Answer 7

\[\Large \color{blue}{x = 1.2}\]
\[\Large \color{red}{y = -10.7}\]

-------------------------------------------------------
\[\Large \color{blue}{x} + (-\color{red}{y})\]
\[\Large \color{blue}{x} - (\color{red}{y})\]
\[\Large \color{blue}{1.2} - (\color{red}{-10.7})\]
\[\Large 1.2 + 10.7\]
\[\Large 11.9\]

Notice how the two negatives canceled to form a positive

Answer 8

no that is just purenlesys this is what makes is a positive 10 | 10.7|

Answer 9

sorry i meant | -10.7| = 10.7 or |10.7| = -10.7

Answer 10

no that is just purenlesys this is what makes is a positive 10 | 10.7|

Answer 11

|number| is always \[\ge 0\]

Answer 12

sorry i meant | -10.7| = 10.7 or |10.7| = -10.7

Answer 13

you seem to be repeating yourself.

Answer 14

Any one But lily2913 have any thing to help

P.S. @lily2913 thank you for your help

Answer 15

So the problem is actually \(\Large x+|y|\) ?

Answer 16

yes x = 1.2 and y = –10.7?

Answer 17

you are correct in saying that `|-10.7| = 10.7`

Answer 18

so,

`x+|y| = 1.2 + |-10.7| = 1.2 + 10.7`

Answer 19

so B?

Answer 20

Hello

Answer 21

correct

Answer 22

Thank you so MUCH

Answer 23

you're welcome