To solve for the given problem above:
Let x be the number of boxes left after 3 hours
3 * ½ X = 24
3/2 X = 24
X = 24 * 2/3
X = 16
The correct answer is 16.
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! :)
112,811 rounded to the nearest hundred thousand is 100,000
7x +33 < 26 isolate the term with a variable by subtracting 33
7x < -7 divide by 7
x < -1