Yes it is, due to the fact that you can see exactly what you are subtracting because they are directing above and below each other. In all forms of math we subtract this way for a better understanding of what's needed to be subtracted.
29/9 kilograms because 7/3 is equivalent to 21/9 and then 21/9+8/9 = 29/9
The answer is B
A number line from negative 8 to positive 8 in increments of 1, with only whole numbers that are multiples of 2 labeled. Place point P at the third tick mark to the left of 0. Put point Q at the fifth tick mark to the right of 0.
Answer:
1)
5 OVER THE SECOND POWER=25
6XDIVIDEDBY25=4.167
-4 OVER THE THIRD POWER=-64
-64DIVIDEDBY9X=-7.1
2) 7X+8(X-5)
8TIMESX=8X
8TIMES-5=-40
7XPLUS8X=15X
15XDIVIDEDBY-40==2.67
62-12=50
FOR #2THE SIGN WILL BE TURNED THE OTHER WAY.....
3) -12TIMES3/4=-16X
-12TIMES2=-24
-16XDIVIDEDBY-24=1.5
45+3=48
EVERYTHING IN BOLD IS THE AWSNERS I JUST SHOWED MY WORK HOPE THIS HELPS GOOD LUCK.....