ComputerScienceExpert

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About ComputerScienceExpert

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Expertise:
Applied Sciences,Calculus See all
Applied Sciences,Calculus,Chemistry,Computer Science,Environmental science,Information Systems,Science Hide all
Teaching Since: Apr 2017
Last Sign in: 103 Weeks Ago, 2 Days Ago
Questions Answered: 4870
Tutorials Posted: 4863

Education

  • MBA IT, Mater in Science and Technology
    Devry
    Jul-1996 - Jul-2000

Experience

  • Professor
    Devry University
    Mar-2010 - Oct-2016

Category > Math Posted 23 Apr 2017 My Price 8.00

Suppose that cities X and Y

(1 pt) Suppose that cities X and Y are exactly 750 miles apart. On a certain day, Anne leaves from city X traveling at a rate of 75 mph towards city Y. At the same time, and taking the same route, Bob leaves city Y traveling at a rate of 50 mph towards city X. How far from city Y will Anne and Bob pass each other?

 

a) Write an equation to help you solve this problem. You may use variables d for distance or t for time.

Answer:

b) Solve this equation and use it to find d,  the distance from city Y at which they pass. Include the appropriate units in your answer.

Answer: d=

 

(1 pt) A jeweler has 7 rings, each weighing 11 g, made of an alloy of 15 percent silver and 85 percent gold. He decides to melt down the rings and add enough silver to reduce the gold content to 70 percent. How much silver should he add? 

a) Write an equation for the total amount of gold in the mixture. Use s to represent the amount of silver added. 
Answer: 

b) Solve this equation for s. Include the appropriate units in your answer. 
Answer: help (units)

Answers

ComputerScienceExpert
(11)
Status NEW Posted 23 Apr 2017 11:04 AM My Price 8.00

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