Answer:
B) 7.5 in3
Step-by-step explanation:
In the first one it would be (21-8)-6=7.
and in the second one it would be 21-(8-6)=19
Answer:
They will meet in 5:30.
Step-by-step explanation:
'Cause you have to fin the LCM (least common multiple). And in this case the LCM is 30.
So first, we multiply out the brackets.
-15x - 18 + 2 = 17 + 16x -1
Then, bring all the terms onto one side so you can solve.
-15x-18+2-17-16x+1=0
Then, we simplify this.
-31x-32=0
Then, isolate x
-31x=32
x=32/-31 or -1.03 (nearest hundredth )
Answer:
9 feet down
Step-by-step explanation:
2+7=9