Answer:15x
Step-by-step explanation:you add 12 + 3 which equals 15 and then you just carry the x over
Answer:

Step-by-step explanation:
Given


Required
After how many minutes, will they round together
First, convert the given time to minutes









So, we have:


List out the multiples of the time of both security personnel take round.


In the above lists, the common time is:

<em>This implies that they go on round after </em>
<em></em>
Answer:
-$7
Step-by-step explanation:
20 - 15 = 5
5 + 5 = 10
10 - 10 = 0
0 - 7 = -7
Answer:
Step-by-step explanation:
x=100 (vertically opposite angle)
Answer:
0.0437
Step-by-step explanation:
5+2×50÷10=15 15÷7=0.0437