college algebra

posted by .

4. The yearly cost T, in thousands of dollars, of tuition and required fees at a private college (includes two- and four-year schools and does not include room and board) can be approximated by

T= 3/5n + 5

where n is the number of years since 1985. That is, corresponds to 1985, corresponds to 1990, and so on. Show your work and explain each answer.
Source: Statistical Abstract of the United States, 2003
a. Find the cost of tuition in 1985, 1996, 2000, and 2004.
b. Graph the equation and then use the graph to estimate the cost of tuition in 2005. Use the drawing tools to draw your line on the graph.

c. Predict the year in which the cost of tuition will be \$23,000. Explain your answer.

• college algebra -

1985 , --- t = 0
1996 , --- t = 11
etc.

b) you will have to do the graph, hard to show graphs on here

c) set T = 23
23 = (3/5)n + 5
18 = (3/5)n
90 = 3n
n= 30 years from 1985 or in 2075

Similar Questions

1. can somebody help me with this

College enrollments in the United States are projected to increase from 1995 to 2005 for public and private schools. The models below give the total projected college enrollments in thousands, where x=0 represents the first year 1995. …
2. Math Essay

Can some one please do the essay or give me a website that writes custom essays Introduction Over the last thirty years, tuition at public 4-year colleges has increased by about 50%, and tuition at private 4-year colleges has increased …
3. college

The yearly cost T, in thousands of dollars, of tuition and required fees at a private college can be approximated by T = (3/5)n + 5, where n is the number of years since 1985. That is, n = 0 corresponds to 1985, n = 5 corresponds to …
4. Algebra 1

i need help working these correctly! 1. Are the inequalities 3x-4<10-4x and 2(x-5) >3(2x-6) equivalent?
5. math

Four-year -college tuition. The average tuition at a public four-year college was \$3983 in 2001 and \$5948 in 2005. Find the rate at which tuition was increasing.
6. Algebra 208

Cost of Tuition In 2000, the average cost of tuition and fees at private four-year colleges was \$16,200, and in 2005 it was \$20,100. Sketch a line that passes through the points (2000, 16200) and (2005, 20100).
7. algebra

Cost of Tuition In 2000, the average cost of tuition and fees at private four-year colleges was \$16,200, and in 2005 it was \$20,100. Sketch a line that passes through the points (2000, 16200) and (2005, 20100).
8. ECONOMICS

Suppose your college charges you separately for tuition and for room and board. What is a cost of attending college that is not an opportunity cost?
9. Math

The cost T, in hundreds of dollars, of tuition and fees at many community colleges can be approximately by T=1/4c+6,where c is the number of credits for which a student registers. Graph the equation and use the graph to estimate the …
10. Algebra

The cost T in hundreds of dollars of tuition and fees at many colleges can be approximated by t=1/2c+5 where C is the number of credits for which a student registers graph the equation and use the graph to estimate the cost of tuition …

More Similar Questions