Questions on Algebra: Proportions answered by real tutors!

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Question 1208723: Ruth has a beaker containing a solution of $800$ mL of acid and $200$ mL of water. She thinks the solution is a little strong, so she drains $300$ mL from the beaker, adds $300$ mL of water, and stirs the solution. Ruth thinks the solution is still too strong, so again she drains $400$ mL from the beaker, and adds $400$ mL of water. Ruth again thinks the solution is still too strong, so again she drains $100$ mL from the beaker, and adds $100$ mL of water. How many mL of water are now in the beaker?
Click here to see answer by MathTherapy(10551) About Me 
Question 1208723: Ruth has a beaker containing a solution of $800$ mL of acid and $200$ mL of water. She thinks the solution is a little strong, so she drains $300$ mL from the beaker, adds $300$ mL of water, and stirs the solution. Ruth thinks the solution is still too strong, so again she drains $400$ mL from the beaker, and adds $400$ mL of water. Ruth again thinks the solution is still too strong, so again she drains $100$ mL from the beaker, and adds $100$ mL of water. How many mL of water are now in the beaker?
Click here to see answer by ikleyn(52777) About Me 
Question 1208723: Ruth has a beaker containing a solution of $800$ mL of acid and $200$ mL of water. She thinks the solution is a little strong, so she drains $300$ mL from the beaker, adds $300$ mL of water, and stirs the solution. Ruth thinks the solution is still too strong, so again she drains $400$ mL from the beaker, and adds $400$ mL of water. Ruth again thinks the solution is still too strong, so again she drains $100$ mL from the beaker, and adds $100$ mL of water. How many mL of water are now in the beaker?
Click here to see answer by mccravyedwin(406) About Me 
Question 1209086: Five workers have been hired to complete a job. If one additional worker is hired, they could complete the job 6 days earlier. If the job needs to be completed 32 days earlier, how many additional workers should be hired?
Click here to see answer by ikleyn(52777) About Me 
Question 1209086: Five workers have been hired to complete a job. If one additional worker is hired, they could complete the job 6 days earlier. If the job needs to be completed 32 days earlier, how many additional workers should be hired?
Click here to see answer by math_tutor2020(3816) About Me 
Question 1209085: Three runners, Dirk, Edith, and Foley all start at the same time for a 24 km race, and each of them runs at a constant speed. When Dirk finishes the race, Edith is 10 km behind, and Foley is 8 km behind. When Edith finishes the race, how far behind is Foley, in km?
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Question 1209464: If x-3 is directly proportional to the square of y and x =5 when y=2,
What is x when y=6
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Question 1209464: If x-3 is directly proportional to the square of y and x =5 when y=2,
What is x when y=6
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Question 1209463: If x-3 is directly proportional to the square of y and x= 5 when y = 2 when x when y= 6
Click here to see answer by ikleyn(52777) About Me 
Question 1209606: A ship traveling a straight course sights a lighthouse at an angle of A=21.3 deg as shown in Fig. 340. After traveling another B=2.26 mi, the lighthouse is at an angle of C=45.9 deg. Determine x and y. Not sure how i should submit the picture however.
Click here to see answer by math_tutor2020(3816) About Me 
Question 1209606: A ship traveling a straight course sights a lighthouse at an angle of A=21.3 deg as shown in Fig. 340. After traveling another B=2.26 mi, the lighthouse is at an angle of C=45.9 deg. Determine x and y. Not sure how i should submit the picture however.
Click here to see answer by timofer(104) About Me 
Question 1209747: A ladder leans against a vertical wall if the height of the wall is 12m calculate the length of the ladder
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Question 1172902: In a class of 50 students 24 like football 21 basketball and cricket six like football and basketball 3 like basketball only, five like all three games, and 14 did not like any of the three games.
1.illustrate this information of Venn diagram
2. Find the number of students who like
A. Football and cricket
B. Exactly one of the game
C. Exactly two of the game.
Click here to see answer by CPhill(1959) About Me 
Question 1172902: In a class of 50 students 24 like football 21 basketball and cricket six like football and basketball 3 like basketball only, five like all three games, and 14 did not like any of the three games.
1.illustrate this information of Venn diagram
2. Find the number of students who like
A. Football and cricket
B. Exactly one of the game
C. Exactly two of the game.
Click here to see answer by ikleyn(52777) About Me