Elementary row operations, Mathematics

Anne, Betty and Carol went to their local produce store to buy some fruit. Anne bought one pound of apples and two pounds of bananas and paid $2.11. Betty bought two pounds of apples and one pound of grapes and paid $4.06. Carol bought one pound of bananas and two pounds of grapes and paid $4.45.

 (a) Let x = price of a pound of apples, y = price of a pound of bananas and z = price of a pound of grapes. Write out 3 linear equations representing the purchases of Anne, Betty and Carol.

(b) Write out the augmented matrix for your system of 3 linear equations of part (a).

(c) Use elementary row operations to row reduce the augmented matrix of part (b) to a reduced row-echelon matrix.

 (d) What is the price per pound for each of the three fruits?

Posted Date: 2/22/2013 2:38:36 AM | Location : United States







Related Discussions:- Elementary row operations, Assignment Help, Ask Question on Elementary row operations, Get Answer, Expert's Help, Elementary row operations Discussions

Write discussion on Elementary row operations
Your posts are moderated
Related Questions
Find out the Taylor Series for f (x) = e x about x = 0. Solution In fact this is one of the easier Taylor Series that we'll be asked to calculate.  To find out the Taylor

Please, I want to know and study "stability 0n predictor -corrector method .My gmail is thanhtutswe555@gmail.com.Please heap and kind to me .Thanks for this.

Q. a(b - c)x^2 + b(c - a)x + c(a - b) = 0 has equal roots then b = ? Ans: Condition that a quadratic equation ax² + bx + c = 0 has equal roots is: Its discriminant, b² - 4ac = 0 A


prove that sin A /cot A + cosec A = 2 + sinA / cot A - cosec A

What is the annual interest rate on an account in which earns $948 in simple interest over 36 months along with an initial deposit of $7,900? Using the easy interest formula In

what is market

what is 5+10


Coal is carried from a rrrine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 36 tons of coal in each ca