Questions on Algebra: Proportions answered by real tutors!

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Question 522388: how do you find a proportion. 12% of 17
Click here to see answer by stanbon(57231)

Question 522790: How do I do this problem?
Eugene bought 27 comics and 12 magazines for $126. If 3 comics cost as much as 2 magazines, find the cost of each comic.
Click here to see answer by Maths68(1474)

Question 568: can you please send me some practice work on algebra? i'm having problem with problem like 2x + 4y= 8
6x + 12y= 24
Then it would ask question like, what is the value of Y? I do run into problem like 3x + 4y= 12, and 6x + 14y= 30, so what is the y + 10=
can you email how do problem like this
Click here to see answer by BLAZETHEKILLER(3)

Question 524048: HI
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Question 524658: A blueprint shows the master bedroom to be 5 inches long and 3 inches wide. The scale on the blueprint is 2 inches for every 11 feet. What are the actual length and width of the master bedroom?
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Question 524684: Mary,Bob, and Dylan contributed money to the college fund in the ratio of 3:5:8. If they contributed $464, how much did each person contribute to the fund?
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Question 524715: the scale on a blueprint is 1/2 inch for every 6 feet. the height of the living room ceiling is shown as one and a half inches on the print. how high should the living room ceiling really be?
Click here to see answer by edjones(7569)

Question 525559: total of three numbers is 174. If the ratio between 1st and 3rd number is 1:4. And the ratio between 2nd and 3rd number is 9:16. Then what is the 2nd number?
Click here to see answer by ankor@dixie-net.com(15632)

Question 525810: Help with this question please:
0.05:x as 0.15:30
Click here to see answer by Tatiana_Stebko(1326)

Question 526211: The costs incurred by a trucking company vary jointly with the number of trucks in service and the number of hours they are used. When 4 trucks are used for 6 hours each, the costs are $1800.
a)Find the costs of using 19 trucks, each for 12hours.
Click here to see answer by richwmiller(9135)

Question 526671: statistics question. what is the probability of matching the letter if you have a ticket with two numbers an one letter. show formula
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Question 526822: If the width(x) of an object is 3 and the length(y) is 4 on a chart, then what would be the length(y) of an object if the width(x) is 1?
I have tried many times, but I just can't get it right. At first, I figured out a half of 3, but I thought it might not have even been relavant. I also have tried to figure out what the length(y) of an object is, if the width(x) was 6, and I got 8. This would be a real big help.
Thank you for your time
Click here to see answer by ankor@dixie-net.com(15632)

Question 528280: Hi my name is Tamika. I am currently in the seventh grade. On one of my homework problems i didnt understand, please get back to me as soom as possible.: )
x 4
- = -
15 8
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Question 528354: what is 7/x=9/10

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Question 528448: 2/x=16/40=
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Question 529802: Please help with this question. My son needs help. Thank you so much!
Question:
Two rectangles are similar. One is 5 cm by 12 cm. the longer side of the second rectangle is 8 cm greater than twice the shorter side. find its length and width.

Click here to see answer by jim_thompson5910(28503)

Question 529859: Hi, I have a problem. I have been learing about proportions for a while, but I just can't get it. The problem is:42 is 30% of what number?
Click here to see answer by ankor@dixie-net.com(15632)

Question 530069: 12+121
Click here to see answer by jim_thompson5910(28503)

Question 530504: Hi,
my question is....
a falcon flew 16 2/3 miles in 5 minutes. what is this speed in feet per second. round your answer to the nearest tenth.
thx! :)
Click here to see answer by stanbon(57231)

Question 530532: the scale on a map of Virginia shows that 1 cm represents 30 miles. the actual distance from richmond, VA to Washington, DC is 110 miles. one the map, how many cm are between the 2 cities. round your answer to the nearest tenth.
Click here to see answer by stanbon(57231)

Question 530518: a map of Indiana is being made to a scale of 1/2 in: 20 mi. Indianapolis is 128 miles from fort wayne. how far apart from each other will they appear on this map?
Click here to see answer by rfer(12646)

Question 530514: a model of a building was built to a scale of 1:65.5. one side of model is 23 inches long. how, long in feet, is this side of the actual building? round to the nearest tenth.
Click here to see answer by rfer(12646)

Question 530523: a giraffe can run 32mph. what is this speed in feet per second? round your answer to the nearest tenth.
Click here to see answer by josmiceli(9654)

Question 530913: ``Hi,
my question is....
sam is building a model of an car. the scale of his model to the actual car is 1:10. his model is 18 1/2 inches long. how long is the actual car?
thx! :) ''.
Click here to see answer by oberobic(2304)

Question 531732: Shane's neighbor pledged $1.25 for every 0.5 miles that Shane swims in the charity swim-a-thon. If Shane swims 3 miles, how much money will his neighbor donate?
Click here to see answer by stanbon(57231)

Question 531727: Barbara's goal is to practice piano 20 minutes for every 5 minutes of lessons she takes. If she takes a 20 minute piano lesson this week, how many minutes should she practice this week?
Click here to see answer by josmiceli(9654)

Question 531751: The measure of two supplementary angles are in the Ratio 11:13. Find the measure of each angle.

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Question 531812: i have a with solving proportions, i don't know where to start. such as x+1/3= 10/x+2
Click here to see answer by bucky(2189)

Question 532381: y over 2=6 over 24

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Question 532951: this is for help with my daughters homework the question is every mile marker is a thousand feet and you passed mile marker 8 at 3:10 and mile marker 20 at 3:14 what was your average speed
Click here to see answer by scott8148(6628)

Question 533247: A case of 12 one liter bottles of apple juice cost 19.80$ a case
Of 24 cans each can containing 340 ml of apple juice
Cost 14.50$ which case of apple juice cost less per milliliter
Click here to see answer by richwmiller(9135)

Question 533619: So I've been working on this word problem for about an hour and I'm not getting it at all. Here it is:
"A hybrid car averages 601 miles on a 12.2 gallon tank of gas. Manuel is planning a 1280-mile vacation in his hybrid car. Find how many gallons of gas he can expect to burn."
If you guys could help me, that would be awesome.
Click here to see answer by josmiceli(9654)

Question 533617: Suppose that Julian has 44 coins consisting of pennies and nickels. If the number of nickels is two more than, twice the number of pennies , find the number of coins of each kind?
Click here to see answer by josmiceli(9654)

Question 533598: The diameter of Jupiter is approximately 11 times larger than the diameter of earth. Find the diameter of earth given that Jupiter has a diameter of approximately 89,000 miles. Express the answer to the nearest mile
Click here to see answer by ankor@dixie-net.com(15632)

Question 533728: Obtain a standard deck of 52 cards, and think of the cards as the 52 items your firm produces each day. Let the four aces and four kings in the deck represent defective items.
if 10 items are randomly sampled from a days production, what should be the proportion of defective items?
Please help! Thank you!
Click here to see answer by stanbon(57231)

Question 533748: A marker cost as much as 4 pens. Manny paid $143 for 2 markers and 5 pens. What is the cost of a marker? What is the cost of a pen?
Click here to see answer by unlockmath(1599)

Question 533977: Cost varies directly as time. The cost is $8 when the time is 2 hours.
What is the constant of proportionality?
Click here to see answer by josmiceli(9654)

Question 534007: A metal smith wishes to create an alloy of 20%,silverand12% gold. She has three raw materials to work with. One is 10%,silverand10% gold the second is 25%,silverand10% gold, and the final metal is 30%,silverand15% gold. In what proportions should she combine the three to produce the desired alloy?
Click here to see answer by ankor@dixie-net.com(15632)

Question 534452: 15 machines prepare 360 sweaters in 6 days. 3 machines become out of order. how many sweaters could be prepared in 10 days by remaining machines
Click here to see answer by solver91311(16868)

Question 534824: If the cost of x apples is b cents, what is a general formula for the cost, in cents, of y apples?
I know the answer is bx/y, but I need to know why?????
Thanks for your help!!
Click here to see answer by mananth(12270)

Question 535212: Also need help on the following:
Convert: 3.43 meters into centimeters
Click here to see answer by rfer(12646)

Question 535210: i got 17 for my answer but it was wrong,
9/n=11/13
solving proportions
Click here to see answer by Alan3354(30982)

Question 535210: i got 17 for my answer but it was wrong,
9/n=11/13
solving proportions
Click here to see answer by rfer(12646)

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