Questions on Algebra: Proportions answered by real tutors!

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Question 1085052: Is f (x+3) same with f(�) + f(3)
show solution with explanation
Click here to see answer by natolino_2017(77)

Question 1085579: 3ײ+90=0
Click here to see answer by Alan3354(69443)

Question 1085578: -3ײ+90=0
Click here to see answer by ikleyn(52776)

Question 1085881: Simplify each rate. Then write the rate in word form
84 fence panels for 1350 feet
Only type the simplified ratio in word form
Click here to see answer by ikleyn(52776)

Question 1085934: Could you please explain how to tackle this problem?
The ratio of Jonathan�s age to David�s age is 6:5. In seven years it will be 7:6. What are their ages now.
Thanks in advance.

Click here to see answer by Alan3354(69443)

Question 1086100: If the ratio between 8 and 11 is the same as the ratio of 2 x-y to X + 2 Y find the value of 7x/9y. Not able to solve please help.
Click here to see answer by Fombitz(32388)

Question 1086281: Divide 1290 into A,B and C such that A is 2/5 of B and B:C = 4:3.
Unable to solve please help.
Click here to see answer by Boreal(15235)

Question 1086281: Divide 1290 into A,B and C such that A is 2/5 of B and B:C = 4:3.
Unable to solve please help.
Click here to see answer by jorel1380(3719)

Question 1086282: A school has 630 students. The ratio of the number of boys to the number of girls is 3:2. This ratio changes to 7:5 after the admission of 90 new students. Find the number of newly admitted boys.
Click here to see answer by josgarithmetic(39616)

Question 1086296: The monthly pocket money of Ravi and Sanjiv are in the ratio 5 to 7 their expenditures are in the ratio 3 to 5 if each saves rupees 80 every month. Find their monthly pocket money.
My solution
Let the monthly pocket money of Ravi 5X and Sanjiv be 7y
Their expenditures be 3x and 5y
According to question
5x-3x=80
7y-5y=80
I don't know whether it is correct or wrong please tell me the correct answer

Click here to see answer by Theo(13342)

Question 1086353: The bus fare between two cities is increased in the ratio 7:9. Find the increase in the fare if:
(i) the original fare is 245
(ii) the increased fare is 207
Click here to see answer by josmiceli(19441)

Question 1086422: In the mixture of 126 kg of milk and water, milk and water are in the ratio 5:2 how much water must be added to the mixture to make this ratio 3:2.
My solution
Let X be the milk and Y be the water
x+y=126
x/y=5/2
y=2x/5
X+2x/5=126
7x=126*5
x=90
y=36
let water in this mixture be 3y
we have milk means y= 90
Water=90*3=270
Extra water added=270-36=234
answer is wrong please tell me where I have done the mistake
Click here to see answer by ikleyn(52776)

Question 1086490: If X + 3 : 4 x + 1 is the duplicate ratio of 3 : 5 find the value of x
Click here to see answer by MathLover1(20849)

Question 1086537: Write the ratio in lowest terms:
7 1/2 inches to 3 1/3 inches
How would I line this up to find the ratio.
Thank you so much!
Click here to see answer by ikleyn(52776)

Question 1086537: Write the ratio in lowest terms:
7 1/2 inches to 3 1/3 inches
How would I line this up to find the ratio.
Thank you so much!
Click here to see answer by MathTherapy(10551)

Question 1086538: A computer printer can print a 600-word document in 25 seconds. At this rate, how many seconds are required to print a document that contains 780 words?

To solve this I would just go - 600/25 = 780/x
is this the correct solving method? Thank you!
Click here to see answer by josgarithmetic(39616)

Question 1086608: If m : n is the duplicate ratio of m + x : n + X show that: x^2 = mn.
Unable to solve please help
Click here to see answer by jim_thompson5910(35256)

Question 1087876: A man spent 2/3 of his monthly salary on rent, 1/4 on food and 1/6 on books. If his monthly salary is gh600
I. How much did he spend on rent
2.hoe much for he spend on food
3. How much did he spend on books
THANK YOU
Click here to see answer by ikleyn(52776)

Question 1088215: One leg of a right triangle is 33 millimeters longer than the shorter leg and the hypotenuse is 66 millimeters longer than the shorter leg. Find the lengths of the sides of the triangle.
Click here to see answer by Fombitz(32388)

Question 1088214:
If the sides of a square are increased by
33
inches, the area becomes 49 square inches. Find the length of the sides of the original square.
A small square has a side measuring x. To its right, a larger square has a side measuring x plus 3.

x plus 3x+3 Find the length of the sides of the original square and the length of the sides of the second square?

Click here to see answer by Fombitz(32388)

Question 1088380: 3 men and 7 women can complete a work in 10 days . But 4 men and 6 women need 8 days to complete the same work . In how many days will 10 women complete the same work ?
Click here to see answer by josmiceli(19441)

Question 1088377: an amount of rs 735 was divided between a b and c .if each of them had received rs 25 less , their shares would have been in the ratio of 1:2:3.the money received by c is?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1088960: Estimate the answer to 21500�98
Click here to see answer by josgarithmetic(39616)

Question 1088963: covert 7.5 cents per ounces to dollar per pound?
showing steps.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1088983: Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, and 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 htmentor(1343)

Question 1089963: If 3x+4:x+5 is the duplicate ratio of 8:15, find x.

Click here to see answer by Fombitz(32388)

Question 1089964: If x-9:3x+6 is the duplicate ratio of 4:9, find x.
Click here to see answer by Fombitz(32388)

Question 1090521: If a 6-foot man casts an 8-foot shadow, how long of a shadow is cast by a 150-foot flagpole?

Write the correct proportion and solve.
Click here to see answer by Fombitz(32388)

Question 1090522: One Saturday Ajani sold 2 dozen donuts for every 5 dozen cookies. If he sold a total of 84 dozen items, how many dozen were donuts?
Click here to see answer by jorel1380(3719)

Question 1090658: Nick planted a cedar tree. It grew 10 cm in 1/2 of a year what will the height of the tree be at the end of six years
Click here to see answer by josgarithmetic(39616)

Question 1091080: I would like to know how and why on this question please
Which number in the following group of numbers represents the smallest amount?
7, .8,31,,33,2 why and how
Click here to see answer by Alan3354(69443)

Question 1091500: (a) A ton of five-dollar bills is worth $4,540,000. How many pounds does a five-dollar bill weigh?

(b)A criminal claims to be carrying $5 million in twenty-dollar bills in a brief case. Is this possible? Why or Why not?
Click here to see answer by Boreal(15235)

Question 1091546: The income of a man is increased in the ratio 10:11.If the increase in his income is 600 rupees per month, Find his new income

Click here to see answer by josgarithmetic(39616)

Question 1091668: If the edges of a 4-inch by 6-inch photograph are each enlarged by 20%, what is the perimeter of the new photograph? Please, could you help me break down this problem step by step?
Click here to see answer by ikleyn(52776)

Question 1092094: 5+4=10? How
Click here to see answer by Fombitz(32388)

Question 1092335: when rating a movie in 1994 critic gene siskel gave four thumbs up to every five thumbs up given by his partner roger ebert. if mr sisk gave thumbs up to 68 movies, how many movies did mr. evert rate favorably
Click here to see answer by josmiceli(19441)

Question 1092678: how to solve 15 -ozbag of yum tortilla chips conatains 5 serving.There are 240 milligrms of salt in each serving. How much many milligrmasof sodium are in an ounce of these chips?
can you help me how to solve it.
Click here to see answer by josgarithmetic(39616)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265