Problema Solution
Between 1990 and 2000, the monthly rent increased by $20 per year. In 1997, the rent was $450 per month. Find an equation that gives the monthly rent in dollars, y, in terms of the year, let t = 0 correspond to 1990
Answer provided by our tutors
y = 20t + C, where C is constant
in 1997 the rent was $450 means
t = 1997 - 1990
t = 7
y = $450
450 = 20*7 + C
by solving we find:
C = 310
click here to see the step by step solution of the equation:
Now we can write the equation:
y = 20x + 310.