Edgar job pays 43,000 per year with an anticipated annual rise of 2500. Write a model representing Edgar’s salary (in $) in x years

Question

Edgar job pays 43,000 per year with an anticipated annual rise of 2500. Write a model representing Edgar’s salary (in $) in x years

 

Allen job pays 45,000 per year with an anticipated annual rise of 2250. Write a model representing Allens salary (in $) in x years

 

In how many years will the salaries of Edgar and Allen be equal?

Answer 1

Edgar:  S(x) = 43000 + 2500*x

 

Allen: S(x) = 45000 + 2250*x

 

 

43000 + 2500X = 45000 + 2250X

 

2500X - 2250X = 45000 - 43000

 

250X = 2000

 

x=8

 

in 8 years they will both make 43000 + 8(2500) = 43000 + 20000 = 63000

                                            45000 + 8(2250) = 45000 + 18000 = 63000