180 is the least common multiple.
8.3 is 10 times 0.83 so it is greater by a factor of 10
Standard form is presented as Ax + By = C
all you need to do here is move the y value over to the side with the x value.
so,
x + 2/7y = 3/4
given that
4112/5 = 822 remainder 2
to get the correct way and incorrect way.
so
For,
822 x 5 = 4110
For,
822 x 2 + 5 = 1649
For,
822 x 5 + 2 = 4112
therefore,
The correct way to check The incorrect way to way to check
822 x 5 + 2 822 x 5
822 x 2 + 5
So half of Nina's age is 10/2= 5. And since Greg is three years younger we subtract from 5 like so...
10/2=5
5-3
2
So Greg is 2 years old. I hope this helps love! :)