Tutors Answer Your Questions about Proportions (FREE)
Question 140436: A jar has twice as many red marbles as white marbles and the ratio of blue marbles to white marbles in the jar is 3:5. There are only red, white and blue marbles in the jar. If there are 2100 more red marbles than blue ones, how many marbles are in the jar altogether?
so far I came up with 6600 white, 11000 blue and 13200 red but that gives me 2200 more red and I need 2100. I just cant think anymore.. Am I close? Maria
Click here to see answer by scott8148(6628)   |
Question 140436: A jar has twice as many red marbles as white marbles and the ratio of blue marbles to white marbles in the jar is 3:5. There are only red, white and blue marbles in the jar. If there are 2100 more red marbles than blue ones, how many marbles are in the jar altogether?
so far I came up with 6600 white, 11000 blue and 13200 red but that gives me 2200 more red and I need 2100. I just cant think anymore.. Am I close? Maria
Click here to see answer by stanbon(75887) |
Question 140793: I have to find the value of "x" and the 2nd "x" on the base of the triangle is throwing me. is it REALLY x/x+6= 2/6 on the proportions? then what??? (in case you don't have the book, Proportional Triangles, drawn as one. The smaller is 6" on the base and 2" high. No hypotinuse(sp) The larger has a side and base of "x" It the base had a measurement instead of the "x" I think I could solve it. Book says x=3. Can't figure out how.
Click here to see answer by Edwin McCravy(20056)  |
Question 141442: I am a GED student at Jefferson college and I am getting ready to take my test. I really need to know how to do ratio. For example:
There are 5 red baloons, 3 green baloons, 2 yellow baloons and only one pink baloon. What are the odds that richard picks a red baloon first?
I am pretty sure that this is a ratio question. I have school tommarrow and only a computer today. So please email me back asap. I take the hardest math test tommorrow that determins my ablilty to pass the main GED test.
Click here to see answer by checkley77(12844) |
Question 142400: please answer- what percent of 5 is 4 - thank you
please answer- 30% percent of what number is 6 - thank you
please answer- 87.5 percent of what number is 4 - thank you
please answer- dinner for two freinds costs $24.32. the pair wants to leave a 15% tip. how much should they leave for a tip? - thank you
Click here to see answer by checkley77(12844) |
Question 142535: I am faced with what I believe to be an open-ended assessment question related to proportions and ratios. The question is as follows:
Tony and Ivia started walking south from the same location at the same time. Ivia walked 8 miles and walked 1 mile per hour faster than Tony who walked 6 miles. They each walked for the same amount of time.
a. I need to describe how a proportion could be used to find the rate that each person walked at.
b. The next day they both walked 6 miles, and Ivia again walked 1 mile per hour faster than Tony, who walked 3 miles per hour. Determine whether a proportion could be used to find how long each person walked
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 143987: A lawyer bills her clients $250 per hour of service. If a client's case requires 47 hours to complete, use proportion to calculate how much the client will owe the lawyer (excluding tax).
2. A new virus is released on the internet; the administrator of a department's Local Area Network ( LAN) is given five minutes by a manager to estimate the impact. The administrator samples 12 of the PCs connected to the LAN, and finds that 7 are infected; use proportion to estimate the number of infected PCs if there are a total of 117 PCs connected to the LAN.
3. An administrator of a popular web site is told that a new server can handle 11,000 "hits" (users accessing the site) per second. The web site currently experiences a peak demand of about 85,000 hits per second; but every month, the peak demand increases by 3500 hits per second. Use a proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 18 months.
Click here to see answer by mickeydollys04(1) |
Question 144290: you and your college roommate travel to your respective hometowns in the same amount of time. you drive 210 miles and and your drives 190 miles. your friends average speed is 6 mph lower than your. what are your average speed and your friends?
Click here to see answer by checkley77(12844) |
Question 146518: The total cost(in dollars) for a company to manufacture and sell x items per week is:C=0.6xsq-140x+6200
and the revenue (in dollars)by selling all x items is:
R=-0.4xsq+130
How many items must be sold to obtain a weekly profit of $10000?
Thank you
Nicole
Click here to see answer by checkley77(12844) |
Question 146757: The Golden Ratio. The ancient Greeks thought that the most pleasing shape for a rectangle was one for which the ratio of the length to the width was 8 to 5, the golden ratio. If the length of the rectangular painting is 2 feet longer than its width, then for which dimensions would the length and the width have the golden ratio?
Click here to see answer by edjones(8007)  |
Question 147820: Section 6.7, Exercises # 60
To estimate the size of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later, a random sample of 100 bears included only 2 tagged bears. What is the conservationist’s estimate of the size of the bear population?
Click here to see answer by ankor@dixie-net.com(22740) |
Question 148140: Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does X receive than if the profits were divided in proportion to the amount invested?
Click here to see answer by stanbon(75887) |
Question 148513: Problem: An administrator of a popular web site is told that a new seerver can handle 41,000 "hits" per second. The web site currently experiences a peak demand of about 105,000 hits per second; but every month, the peak demand increases by 2800 hits per second. Use a Proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 24 months.
Click here to see answer by vleith(2983) |
Question 148563: Problem: An administrator of a popular web site is told that a new server can handle 41,000 "hits" per second. The web site currently experiences a peak demand of about 105,000 hits per second; but every month, the peak demand increases by 2800 hits per second. Use a proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 24 months.
Click here to see answer by stanbon(75887) |
Question 148735: The distance of station from the house of Ramakant Babu is 8km.He covers this distance in 36 minutes,travelling first part at the speed of 10km. per hour by bi-cycle and the second part at the speed of 18km. per hour by auto-rickshaw.What distance does he travel in each part?
Click here to see answer by stanbon(75887) |
Question 150682: what is the image distance i for an object that is 2,000,000 mm, from a 250mm telephoto lense , if the formula for the focal length F for a camera lens is: l
over f= l over o + l over i. (f= focal, o= objec, i= image)
Click here to see answer by Fombitz(32388)  |
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