Question

If x equals 8-(-2.25) and y equals 6-4.2-(-4.9) what is the value of x-y

Answer 1

`x=8-(-2.25)`

`x=8+2.5`

`x=10.5`



`y=6-4.2-(-4.9)`

`y=1.8+4.9`

`y=6.7`


`x-y=10.5-6.7=3.8`
The answer is: 3.8

Answer 2

x = 8-(-2.25) = 8+2.25 = 10.25

y = 6-4.2-(-4.9)=6-4.2+4.9=6+0.7=6.7

x-y = 10.25.-6.7=
`(1025)/(100) - (670)/(100) = (1025-670)/(100) = (355)/(100) =3.55`