Answer: x=3
Step-by-step explanation: 3x+2=11
-2 -2
3x=9
x=3
Answer:
15s
Step-by-step explanation:
Write like so:
54m = 9s
90m = x
Cross multiply:
(90*9)=(54x)
810 = 54x
Divide both sides by 54:
810/54 = 54x/54
15 seconds = x
It seems a lot like 120. 60 and 60 rounded is 60 each. 60 + 60 = 120
(sorry if i'm wrong)
Answer:
Step-by-step explanation:
its a lcm question
