Answer:
The time that the computer take to carry out one sum is 4.63 nanoseconds and the time that the computer take to carry out one product is 4.56 nanoseconds
Step-by-step explanation:
Let
x----> the time that the computer take to carry out one sum
y----> the time that the computer take to carry out one product
we know that
7x+10y=78 ------> equation A
4x+8y=55 -----> equation B
Solve the system of equations by graphing
Remember that the solution of the system of equations is the intersection point both graphs
The solution is the point (4.625,4.563)
see the attached figure
therefore
The time that the computer take to carry out one sum is 4.63 nanoseconds
The time that the computer take to carry out one product is 4.56 nanoseconds
