Tutors Answer Your Questions about Proportions (FREE)
Question 35630: The instructor has learned that for the 30 students in her afternoon class, the ratio of student who do not own a computer to those who do is 2 to 1. How many students in the class own their own computer?
Click here to see answer by stanbon(75887)  |
Question 35628: the instructor of an introductory computer course wants to make a wall chart of a computer desktop for her students, to make it as realistic as possible, she would like the desktop icons to be proportional to the size of her 6’X6’ chart. If the icons on her 15” x 15” PC screen are 3/8” X 3/8”, how large should they be on her wall chart?
can someone please help me with this
Click here to see answer by benni1013(206) |
Question 37440: Please help me solve this: Bronze is an alloy of copper and tin. If a certain type of bronze requires 0.3 kilogram of tin per 1.0 kilogram of copper, how much tin must be combined with 50 kilograms of copper?
Click here to see answer by Paul(988) |
Question 37315: Laura invested $2000. Some at 8% per year and the rest at 10% giving her a total income of $176 per year. How much money did she invest at 8%.
I know that I need to create a table. I'm stuck as to what to do next. I appreciate your help and thanks so much!
Amount invested x Rate = Interest
Investment A 2000 7% .07(2000)
Investment B
Total Investment 176
Click here to see answer by checkley71(8403) |
Question 41445: Could someone out there help me solve this problem?
A tree casts a shodow that measures 5 m. At the same time, a meter stick casts a shodow that is 0.4 m long. How tall is the tree?
Thank you,
Sher
Click here to see answer by Nate(3500) |
Question 45632: Three guys split a hotel room for $30.00. Each paid $10.00. Later, the bell boy arrives at their room. He tells them that the hotel room only costs $25.00, so he gives them $5.00. They enjoy this news so much that they pay him $2.00 for his services and split the remaining $3.00 amongst themselves.
If they all spent nine dollars = $27.00 in all as well as the $2.00 for the bellboy: $27 + $2 = $29 where did the other dollar go?
Click here to see answer by Nate(3500) |
Question 49553: Can someone help me solve this problem?
Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16 m, one base is 20 m, and the area is 224 m^2, find the length of the other base.
Thanks,
Sher
Click here to see answer by Osran_Shri(18) |
Question 51661: i actually have a word problem about ratios.
The sides of a triangle are in the ratio 5 : 12 : 13. What is the length of each side of the triangle if the perimeter of the triangle is 15 in.?
i was given this question off a pratice worksheet. Lesson 1-3 Practice Algebra 2 Chapter 1 Solving Equations
Click here to see answer by checkley71(8403) |
Question 51707: i have been stuck on this problem for 4 days now and need some help solving it it is due in about 15 minutes so the sooner the better, thank you for your help it means alot to me!!!! the problem reads like this:
solve this problem using any math knowledge you have. then show me how you could use a proportion to solve this problem
by installing a $120 thermostat that reduces the temperature setting at night a family hopes to cut its annual bill for heating oil by 8 percent and thereby recover the cost of the thermostat in fuel savings after 2 years what was the family's annual fuel bill before installing the thermostat?
Click here to see answer by checkley71(8403) |
Question 52050: I have the problem with this question. Please help.
Question
A passenger train travelled at a speed of 72 km/h. A man on the passenger train observed a goods train travelling at a speed of 54 km/h in the opposite direction. If the goods train passed him in 8 seconds, find the length of the good train. (Hint : Model the problem and draw a diagram).
Thank you in anticipation.
CH Lam
Click here to see answer by josmiceli(19441)  |
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