Algebra 1

posted by .

i need help working these correctly!

1. Are the inequalities 3x-4<10-4x and 2(x-5) >3(2x-6) equivalent? Why or why not? Show your work and explain your answer.


3. 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.
a. Find the cost of tuition in 1985, 1996, 2000, and 2004.estimate the cost of tuition in 2005.Predict the year in which the cost of tuition will be $23,000. Explain your answer.

  • Algebra 1 -

    1. 3X-4<10-4X. 2(X-5)>3(2X-6)

    3X-4<10-4X, 7X<14, X<2.

    2(X-5)>3(2X-6), 2X-10>6X-18, -4X>-8,
    X<2.

    Since the solution to both inequalities is the same(X<2),they
    are equivalent.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. college algebra

    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 …
  2. Algebra

    The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C=4,000/200-2x What is the cost to remove 65% of the pollutant?
  3. Algebra

    83. Minimizing Marginal Cost The marginal cost of a product can be thought of as the cost of producing one additional unit of output. For example, if the marginal cost of producing the 50th product is $6.20, it cost $6.20 to increase …
  4. College Algebra

    Need help in working this problem - the cost of renting an edger is $16.50 for the first hour and $10.95 for each additional hour. How long can a person have the edger if the cost must be less than $55.00?
  5. algebra 1

    Material cost equation : 30x + 2y = 200 Profit equation : 100x + 5y = 400 B. Explain your inequalities and explain why x<8 and y<40 are also inequalities for this system
  6. Calculus

    The figure shows graphs of the marginal revenue function R ' and the marginal cost function C ' for a manufacturer. (Recall from Section 4.7 that R(x) and C(x) represent the revenue and cost when x units are manufactured. Assume that …
  7. Pre-Cal

    The total cost (in thousands of dollars) of a machine manufacturing unit is given by the function T(x) = 300 + 5x, where x is the number of machines produced. What is the average cost (in thousands of dollars) of manufacturing 200 …
  8. Algebra

    The Yellow Pencil Company sells the best pencils ever made. If the cost of producing x hundred pencils is given by C x x x ( ) 0.4 29 44 = − + 2 and if the revenue generated from the sale of x hundred pencils is R x x x ( ) 0.6 …
  9. Algebra

    The Yellow Pencil Company sells the best pencils ever made. If the cost of producing x hundred pencils is given by C(x)=0.4x^2-29x+44 and if the revenue generated from the sale of x hundred pencils is R(x)=-0.6x^2+19x. Money is in …
  10. algebra

    The airline cost for x passengers, measured in thousands of passengers, to travel round trip from New York to Atlanta is given by c(x)=^0.3x+1 where (c)x is measured in millions of dollars and x>0 Find the airline’s cost for 10,000 …

More Similar Questions