2 3/4 because if you do the math good you get this
Hey there!
64 + 8 = 72
so x = 8
Hope this helps
Have a great day (:
Given :
A computer performs a calculation in
seconds to solve a maths problem.
To Find :
How long does the computer need to calculate the solutions to
maths problems.
Solution :
Time taken to perform 1 calculation is
.

So, time taken to perform
calculations.

Hence, this is the required solution.
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Step-by-step explanation: