Algebra and Trigonometry: Structure and Method, Book 2

2000th Edition

ISBN: 9780395977255

Author: MCDOUGAL LITTEL

Publisher: McDougal Littell

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Question

Chapter 1.9, Problem 22P

To determine

To calculate:

The total pound of each kind of nut should she use if peanut cost $4.80/lb and cashew cost $8/lb

Expert Solution & Answer

Answer to Problem 22P

The pound of peanuts is 11.25 and Pounds of Cashews is 8.75 .

Explanation of Solution

Given information:

The Dollar value of the peanuts: a

a=4.80x

Calculation:

Let,

x : Number of pounds of peanuts

20−x : Number of pounds of cashews

The Dollar value of the peanuts: a

a=4.80x

The Dollar of the cashews: b=8(20−x)

4.80x+(20−x)=6.20(20)

The number of pounds of the peanuts:

4.8x+160−8x=124−3.20+160=12436=3.20xx=11.25

Number of pound of the cashew:

20−x=20−11.25=8.75

Check the solution:

11.25(4.80)+8.75(8)=6.20(20)

The pound of peanuts is 11.25 and Pounds of Cashews is 8.75 .

Chapter 1.9, Problem 21P

Chapter 1.9, Problem 23P

Chapter 1 Solutions

Algebra and Trigonometry: Structure and Method, Book 2

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The total pound of each kind of nut should she use if peanut cost $ 4.80 / lb and cashew cost $ 8 / lb

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To calculate: The total pound of each kind of nut should she use if peanut cost $4.80/lb and cashew cost $8/lb

Answer to Problem 22P

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To calculate:

The total pound of each kind of nut should she use if peanut cost $4.80/lb and cashew cost $8/lb