# Questions on Algebra: Proportions answered by real tutors!

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 Algebra: Proportions Solvers Lessons Answers archive Quiz In Depth

 Question 325317: A card is selected from a standard deck of 52 playing cards. Find the probability of selecting 1. a five given the card is a not a club. 2. a heart given the card is red. 3. a face card, given that the card is black. (An ace is not a face card.) Show step by step work. Give all solutions exactly in reduced fraction form. Click here to see answer by Edwin McCravy(8893)

 Question 325680: On a house plan on which 2 inches represents 5 feet, the length of a room measures 7 1/2 inches. The actual length of the room is. I know how to set the problem up but don't know the next step. 2 inches/7 1/2 inches = 5/x I know to cross multiply what next Please help. Click here to see answer by rfer(12655)

 Question 326563: cost varies directly as time.Thecost is \$8.00 when the time is 2 hours. What is the constant of proportionality? Click here to see answer by user_dude2008(1861)

 Question 326571: 1.Which of the following statements are true about the function y =3x? I The function is a direct variation.II The function goes through the orgin.III. The constant of variation is 1/3.IV. y is 6 when x is 2. Click here to see answer by user_dude2008(1861)

 Question 326593: 1.Which portion could be used to solve for the height of the tree? a.6/h=10/30,b.6/10=h/30,c.6/10=40/h,d.6/h=10/40 Click here to see answer by user_dude2008(1861)

 Question 326595: 1.A skateboard was reduced in price from &50 to \$43.What was the precent decrease? Click here to see answer by nyc_function(2733)

 Question 326616: a car travels at 20 meters per second what is its rate in kilometers per hours Click here to see answer by rfer(12655)

 Question 326663: if on a scale drawing 5 inches represents 80 feet then 3/4 inch would represent how many feet? Click here to see answer by rfer(12655)

 Question 326658: do a direct variation always goes through the origin of the coordinate plane? Click here to see answer by Fombitz(13828)

 Question 326753: sam wants to leave an 18% tip for dinner.the bill is for \$23.50. what equation can be used to find the total amount that sam should pay? Click here to see answer by Fombitz(13828)

 Question 326622: A Direct variation always goes goes through the origin of the coordinate plane Click here to see answer by Fombitz(13828)

 Question 326775: The Door On A Model Building Is 2 Inches Tall.The Door On The Actual Buliding Is 8 Feet Tall.What Was The Scale used Click here to see answer by Fombitz(13828)

 Question 326784: which of the foloowing is a proportion? a.2/5=4/25,b.4/6=6/9,c.4/3=6/8,d.5/6=10/18 Click here to see answer by JBarnum(2044)

 Question 327115: If I want to finish a 16 kilometer race in 2 hours what is the minium distance in kilometers that I should run every 15 minutes Click here to see answer by rfer(12655)

 Question 327857: Tickets to a local movie Were sold at \$6 for adults and \$4.50 for students. if 270 tickets were sold for a total of \$1395. how many tickets were sold of each kind? Click here to see answer by meay7c(10)

 Question 328348: On a map 2.5 inches represents 30 miles. On the map it is 8 inches from Atown to Bville. How many miles apart are the two towns? a.9.6 miles b.96 miles c.144 miles d.240 miles e.120 miles Click here to see answer by mananth(12270)

 Question 328804: If on a scale drawing 5 inches represents 80 feet then 3/4 inch would represent how many feet? I tried to divide 5 int 80 and it came out 6.66ongoing and i figured out that that was not right so i thought i would try and divide 80 into 3/4 but im not really shurr how to go about doing this question. Click here to see answer by scott8148(6628)

 Question 329444: If y varies inversely as the square of x and y = 1 when x = 2, what is the value of y when x = -4? Click here to see answer by nyc_function(2733)

 Question 329639: The ratio of men to women at a certain company is 5 to 7. How many male employees does the company have if there are 204 employees? Click here to see answer by jim_thompson5910(28536)
 Question 329639: The ratio of men to women at a certain company is 5 to 7. How many male employees does the company have if there are 204 employees? Click here to see answer by Edwin McCravy(8893)

 Question 329755: The ratio of men to women in a county is 94 to 100. How many males does the county have if there are 1082805.75 people? Click here to see answer by stanbon(57290)

 Question 330380: A JAZZ CONCERT BROUGHT IN \$158,000 ON THE SALE OF 7,800 TICKETS. IF THE TICKETS SOLD FOR \$15 AND \$25 EACH, HOW MAY OF EACH TYPE OF TICKET WERE SOLD? Click here to see answer by Fombitz(13828)

 Question 330480: Jim is making a diagram of the solar system. If he draws Neptune, which is 2795 million miles from the sun, 10 inches from the sun on his paper, how far away ( to the nearest tenth of an inch) from the sun should he draw Mars, which is 142 million miles from the sun? Click here to see answer by nyc_function(2733)

 Question 331630: Problem: the instructor of an introductory computer course wants to make a wall chart of a computer desktop for students.to make it realistic the desktop icons must be proportional to the size of her 6ftX6ft wall chart. If the icons on her 15"X15" PC screen are 3/8" X 3/8" How large should they be on her wall chart? I think I have to find out what 3/8 to 15 is ,then use that to calculate for 6ftX6ft chart. Im not able to reason out a formula . Click here to see answer by solver91311(16877)

 Question 332210: I have a space that is 9 ft long and 6 ft wide. I want to increase the dimensions of the space by the same distance each way and have the area of the new space 5 times the area of the present space. How many ft should I add to both the width and the length? Thanks Click here to see answer by mananth(12270)

 Question 332444: A machine fills 750 cartons in 3 hours. how many cartons can this same machine fill in 8 hours Click here to see answer by edjones(7569)

 Question 333194: A treasure map is drawn to a scale of 2 inches = 3 miles. On the map, the distance between Point A and X-marks-the-spot is 9 1/2 inches. How many actual miles does this represent. Click here to see answer by rfer(12655)

 Question 334114: A treasure map is drawn to a scale of 2 inches = 3 miles. On the map, the distance between Point A and X-marks-the-spot is 9 1/2 inches. How many actual miles does this represent. Click here to see answer by mananth(12270)

 Question 334252: Write the ratio of whole numbers using fractional notation write the fraction in simplist form 9.2 t0 100. I know the answer is 23/250 but how do you get this answer Click here to see answer by rfer(12655)

 Question 334280: abbotttsville and broken branch are distance 175 millas apart. on a map, the distance between the two towns are 2.5 inches. what is the scale of the map? Click here to see answer by rfer(12655)
 Question 334280: abbotttsville and broken branch are distance 175 millas apart. on a map, the distance between the two towns are 2.5 inches. what is the scale of the map? Click here to see answer by Alan3354(30993)

 Question 334465: Show me the solution to this problem. n/2=5/10 Click here to see answer by mananth(12270)
 Question 334465: Show me the solution to this problem. n/2=5/10 Click here to see answer by benazir.sj@gmail.com(109)

 Question 334403: If r varies jointly as s and t, when r=90, s=8 and t=15. find r when s=7 and t=12. Click here to see answer by Alan3354(30993)

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