Questions on Algebra: Proportions answered by real tutors!

Algebra ->  Proportions  -> Lessons -> Questions on Algebra: Proportions answered by real tutors!      Log On


   



Tutors Answer Your Questions about Proportions (FREE)


Question 1036560: A consignment of fodder can feed 1000 sheep for 20 days. Assuming that all the sheep consume the fodder at the same rate, how many consignments of fodder are needed to feed 550 sheep for 400 days.
Click here to see answer by jorel555(1290) About Me 

Question 1036745: Working together, Jo and Ralph can do the garden chores in 6 hours. It takes Jo twice as long as Ralph to do the work alone. How many hours does it take Jo working alone?
Answer: 18 Hours (How?)

Click here to see answer by ikleyn(52776) About Me 

Question 1036833: Given that X is inversely proportional to the square of Y. It is known that x = 8 for a particular value of Y. When Y is increased bu 200%, find
(a) the value of X,
(b) the percentage change in the value of X

Click here to see answer by Boreal(15235) About Me 

Question 1036561: Kate makes a donation to a charitable organisation on a monthly basis. Her monthly donation is directly proportional to the square of her monthly savings. If she saves $900 and $1200 in January and February respectively, her donation increases by $35 from January to February. Find the amount of money she donates to the charitable organisation in each of the two months.
Click here to see answer by jorel555(1290) About Me 

Question 1037277: Billy and jimmy are hosting a party that cost $48 per ticket. If dinner cosf $14.72 per head, the Dj cost $525, and the lofts cost $1218, how many tickets will they need to sell to break even ?
Click here to see answer by Cromlix(4381) About Me 

Question 1037513: John spent the following amounts of time building a workbench.
drawing plans two hours.
cutting the wood hour-and-a-half.
assembling the workbench 2 hours.
sanding and selling three and a half hours.
what is the ratio of time spent cutting wood to total time spent on the project.

Click here to see answer by Theo(13342) About Me 

Question 1037695: P1= t1p2/t2 solve for t2
Click here to see answer by Alan3354(69443) About Me 
Question 1037695: P1= t1p2/t2 solve for t2
Click here to see answer by solver91311(24713) About Me 

Question 1037872: A map is drawn to a scale of 1:50000. Find
(i) the distance on the map between places that are 10km apart
(ii) the actual distance between two places that are 8.5km apart on the map.
THANK YOU

Click here to see answer by Boreal(15235) About Me 

Question 1039062: A 7-ounce serving of grapefruit juice contains 110 grams of water. How many grams of water are in 35 ounces of grapefruit juice?
There are ___ grams pf water in 35 ounces of grapefruit juice

Click here to see answer by josmiceli(19441) About Me 

Question 1039060: A baseball player gets 9 hits in the first 15 games of the season. If he continues hitting at the same rate, how many hits will he get in the first 25 games?
In the first 25 games, he'll get ____ hits.

Click here to see answer by Boreal(15235) About Me 

Question 1039059: A map is drawn so that every 3.3 inches on the map corresponds to an actual distance of 80 miles. If the actual distance between the two cities is 480 miles, how far apart are they on the map?
The two cities are __ inches apart on the map

Click here to see answer by addingup(3677) About Me 

Question 1039577: Mr. Joe spent 2/5 of his monthly salary on clothing, 1/2 of the remaining on rent and 1/4 of the remaing on drinks. If he still had 100 left. Find
his monthly salary
THANK YOU

Click here to see answer by josgarithmetic(39616) About Me 

Question 1039614: What percentage of 4 is 5?
Click here to see answer by chen.aavaz(62) About Me 

Question 1039804: Hi,
I'm stuck on this problem and would appreciate any help given:
You mix 2/5 cups of red paint for every 1/4 cup of blue paint to make 1 5/8 gallons of purple paint.
a) how much red and blue paint do you use?
B) You decide that you want to make a lighter purple paint. You make the new mixture by adding 1/10 cup of white paint for every 2/5 cup of red paint and 1/4 cup of blue paint. How much red, blue, and white paint do you use to make 3/8 gallon of lighter purple paint?
Thank you so much. This is quite a long problem so I appreciate any and all efforts taken to solve it. Thanks.

Click here to see answer by stanbon(75887) About Me 

Question 1040218: A chemist needs 6 liters of a 10​%
alcohol solution but has only a
15​% alcohol solution. How many liters each of the
15​% solution and water should he mix to make the desired
6 liters of 10​%
​solution?
The chemist needs to mix
___ liters of
15​% alcohol solution with
___ liters of water.

Click here to see answer by josmiceli(19441) About Me 

Question 1040385: which is a proportion? 2/5 = 4/25, 4/6= 6/9, 4/3 = 6/8, 5/6 = 10/18
Click here to see answer by ikleyn(52776) About Me 

Question 1040720: if a:b = b:c, show that a^2b^2c^2(1/a^2 + 1/b^2 + 1/c^2) = a^3 + b^3 + c^3.
Click here to see answer by robertb(5830) About Me 

Question 1041629: 5/13-10/13
Click here to see answer by Fombitz(32388) About Me 

Question 1042637: I think this is a basic question. But it has been 10 years since I had any algebra and I have to take a placement course for college courses. Here is my problem: "if the total cost of x apples is b cents, what is a general formula for the cost, in cents, of y apples?"
I believe I know the answer to this problem, but I need help in understanding why this is the answer. I can get to "by/x" , but I don't remember why I am going through these motions. Is there a law or property that is involved in this problem?

Click here to see answer by josmiceli(19441) About Me 
Question 1042637: I think this is a basic question. But it has been 10 years since I had any algebra and I have to take a placement course for college courses. Here is my problem: "if the total cost of x apples is b cents, what is a general formula for the cost, in cents, of y apples?"
I believe I know the answer to this problem, but I need help in understanding why this is the answer. I can get to "by/x" , but I don't remember why I am going through these motions. Is there a law or property that is involved in this problem?

Click here to see answer by ikleyn(52776) About Me 

Question 1042729: Hasan can do a job twice as fast as Jawed. Sameer can do a job as fast as Hasan and Jawed working together. If a certain job is completed in 4.5 hours by Jawed, how long it would take sameer to complete the same job?
A. 0.5 hour
B. 1 Hour
C. 1.5 Hours
D. 2 Hours

Click here to see answer by stanbon(75887) About Me 

Question 1042841: Suppose that y is inversely proportional to x and that y equals seven ninths when x=81. Complete parts ​(a) and ​(b).
​(a) Find the constant of proportionality k.
kequals=
​(b) Use y equals StartFraction k Over x EndFractiony=
k
x to find y when xequals=7.
yequals=
I need help on three questions please

Click here to see answer by josgarithmetic(39616) About Me 

Question 1043113: My elder brother is seven years older than me. Fine my age when my brother is 13 years old
Click here to see answer by ikleyn(52776) About Me 

Question 1043111: In last 3 years i was 18 years old.what is my mothers present age who is 20 years olderthen me
Click here to see answer by ikleyn(52776) About Me 

Question 1043680: Ashok spends 1/8 of the money for mangoes and 1/7 of the remaining money for sweets and then with the left over money, he goes to a bakery and spends 1/6 of the money to buy bread for his father and with the remaining money, he spends 1/5 and buys flowers for his sister and from the amount left over, he buys a cricket ball by spending 1/4 of the amount. Now, he is left with 48. How much money Ashok had at the beginning?
Click here to see answer by josmiceli(19441) About Me 

Question 1043715: What is the percent of 9/10?
Click here to see answer by josgarithmetic(39616) About Me 
Question 1043715: What is the percent of 9/10?
Click here to see answer by MathLover1(20849) About Me 

Question 1044398: 5/3=×/x+4
Click here to see answer by Alan3354(69443) About Me 

Question 1044872: Rizwan gave 2/7 of the fruit trifle to his friend and ate 1/5 of the remaining.
(a) What fraction of the Remaining fruit trifle did he take himself?
(b) How much of the fruit trifle was left over?

Click here to see answer by josmiceli(19441) About Me 

Question 1044955: Write a complete equation (using the variables x and y) for the line passing through the point (2, 7) and having x-intercept 7.
Click here to see answer by Boreal(15235) About Me 

Question 1044990: A line with slope -2 passes through the point (3, 7). Find the area of the triangle in the first quadrant formed by this line and the coordinate axes.
Click here to see answer by josgarithmetic(39616) About Me 

Question 1044988: Write a complete equation (using the variables x and y) for the line passing through the point (5, 2) and having y-intercept 5
Click here to see answer by josgarithmetic(39616) About Me 

Question 1044989: Write an equation in the variables x and y for the line that passes through the point (4, 15) and that is perpendicular to the line 2x + 6y = 26.
Click here to see answer by josgarithmetic(39616) About Me 

Question 1045013: If x varies directly as y and x is 9 when y is 3, find x when y is 12?
Click here to see answer by josgarithmetic(39616) About Me 

Question 1045081: Hi. If I have 2 gallons of a solution and add 1/2 gallon of water, how much is the solution diluted? Thanks for the help.
Click here to see answer by ikleyn(52776) About Me 

Question 1045162: 5/8 = x/12
Click here to see answer by josgarithmetic(39616) About Me 

Question 1045644: I have a problem with this statement(there are two no if we add 21 to first no then the ratio will be 11/4 then what will be the ratio if we add 21 to both the nos{first no is larger than scond no}
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 1045857: There are 140 9th graders at school,if 45%of them are girls, how many 9th grade girls are there?
Click here to see answer by Alan3354(69443) About Me 
Question 1045857: There are 140 9th graders at school,if 45%of them are girls, how many 9th grade girls are there?
Click here to see answer by ikleyn(52776) About Me 

Question 1045905: Lynn wants to find the height of the tallest building in her city.she stands 199 feet away from the building. Theread is a tree 42 feet in front of her that is 25 feet tall.how tall is the building to the nearest foot?
Click here to see answer by jorel555(1290) About Me 

Question 1046344: If one pound can feed either 5 chickens or 2 pigs, then ten pounds of grain can feed 20 chickens and how many pigs?

Click here to see answer by ikleyn(52776) About Me 

Question 1047238: Good Morning! Hopefully this fits into the category of Proportions. We have a real situation where we're hoping to fit a heavy object into a given space. Because of smaller solid barriers at the entry of the space the object (a microwave oven) must be placed into the space length-wise (rather than width-wise). The question is whether or not, once into the space, the object can be twisted 90 degrees into it's desired orientation. The height of both the space & object along with the depth of the space do not play into consideration of the problem.
Space: 23.5 inches wide
Object: 21.9 inches wide & 17.35 inches deep
Thank you for tackling this query, John

Click here to see answer by Theo(13342) About Me 
Question 1047238: Good Morning! Hopefully this fits into the category of Proportions. We have a real situation where we're hoping to fit a heavy object into a given space. Because of smaller solid barriers at the entry of the space the object (a microwave oven) must be placed into the space length-wise (rather than width-wise). The question is whether or not, once into the space, the object can be twisted 90 degrees into it's desired orientation. The height of both the space & object along with the depth of the space do not play into consideration of the problem.
Space: 23.5 inches wide
Object: 21.9 inches wide & 17.35 inches deep
Thank you for tackling this query, John

Click here to see answer by KMST(5328) About Me 

Question 1047698: Suppose M is jointly proportional to x and y and inversely proportional to the square of z. If x is doubled, y is decupled, and z is tripled, is the value of M changed, and if so, by what factor?
Thanks!

Click here to see answer by Theo(13342) About Me