50x30=1500 (this is an approximated rounded answer)
Answer: The number of letters that must be engraved for the costs to be the same is 125.
Step-by-step explanation:
Since we have given that

We need to find the number of letters.

Hence, the number of letters that must be engraved for the costs to be the same is 125.
Since 1 lap I every 6 minutes then 30\6 is 5 so the answer is 5 LAPS
Answer is 6/11
Explanation :-

Now open left side brackets and multiply 2 with each on left,

Now, bring the common values together for easier calculation.



As we cant divide 6/11 , we write it as it is.
Therefore, <em>value of x is <u>6/11</u></em>