Answer:
using pythagoras theorem
a^2+b^2=c^2
8^2+x^2=(x+2)^2
64+x^2=x^2+2*x*2+2^2
64+x^2=x^2+4x+4(here x^2 of left hand side and x^2 of right hand side gets cancel)
64=4x+4
64-4=4x
60/4=x
15=x
Step-by-step explanation:
Based on the given data we could derive an equation that will express the statement as, Income (i) = 20h + 40. That was express that way since it says that thre is already a 40 dollars charge for inspection, so it is a constant variable. Then it will be added to the product of number of hours times 20 dollars per hour.