Questions on Word Problems: Numbers, consecutive odd/even, digits answered by real tutors!

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Question 89349: In 1975 the population of the Earth was approximately 4 billion and doubling every 35 years. The formula for the population P in year Y for this doubling rate is P(in billions)=4X2^[(y-1975)/35]
What will the population of the US be in 2025 if this growth rate continues
Click here to see answer by stanbon(57203)

Question 89368: The square of 5 more than a number - let x represent the number then write an expression for the product
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 89369: A garden area is 30 ft long and 20 ft wide. A path of uniform width
is set around the edge. If the remaining garden area is 400 ft2, what is the width of the path?

Click here to see answer by ptaylor(2048)

Question 89358: The price of an item is fiven by p=2x^2-100. Find the polynomial that represents the revenue generated from the sale of x items.
Click here to see answer by stanbon(57203)

Question 89707: Prove that there are no solutions in positive integers x and y to the equation x^4+y^4=625.
Click here to see answer by Earlsdon(6287)

Question 89874: One number is 3 times another number.The sum of their reciprocals is 4/9.What are the numbers?I got 4 and 12.That was wrong.The other choices are 1 and 2,2 and 6, and 3 and 9.Can somebody help me?
Click here to see answer by funmath(2925)

Question 50407: A 60 foot rope is cut into four pieces, with each successive piece twice as long as the previous one. Find the length of the longest piece.
Click here to see answer by padejr(3)

Question 90215: The sum of the third and twice the first of three consecutive odd integers is 49
Click here to see answer by rossiv53(27)

Question 90300: The sum of the squares of three consecutive integers is 116. Find the integers.
Click here to see answer by jim_thompson5910(28476)

Question 90286: The sum of 3 consecutive integers is 13 more than twice the smallest integer. Find the integer.
Click here to see answer by ankor@dixie-net.com(15622)

Question 90930: when you double a number & add 22, you get 5/8 of the original number-what is the original number?
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 91113: There are three consecutive integers such that the sum of the first and second integers decreased by the third integer will result in 68. What are the integers?
Click here to see answer by checkley71(8403)

Question 91412: The total of two number is 23. double the large number exceeds three times the smaller by sixteen. what are the integers.
Click here to see answer by checkley71(8403)

Question 91492: A number is 6 times the sum of its digits. The tens digit is 1 greater than the units digit. Find the number.
Click here to see answer by ptaylor(2048)

Question 91529: Please help with solving this...I can't seem to get the fractional part correct.
One number exceeds another by 5. The sum of their reciprocals equal to 19 divided by the product of the two numbers. Find the two numbers.
Click here to see answer by stanbon(57203)

Question 92322: Could you please help me with this problem?
One number is twice another number. The sum of their reciprocals is 1/4. Find the two numbers.
This is what I have so far: 1/x + 1/2x = 1/4, and then I multiplied both sides by 4x since that is the lcd and then I get a bit confused that it's not coming out right.
Thank you!
Click here to see answer by ankor@dixie-net.com(15622)

Question 92317: A car uses 9 gallons of gasoline on a trip of 108 miles. At that rate, how much gasoline will a trip of 192 miles require? Set up a proportion and solve.
Click here to see answer by Nate(3500)

Question 92370: One number is 1 less than another. If 6 times the smallest number minus 2 times the larger number is 30, find the two numbers.
Thanks:)
Click here to see answer by scott8148(6628)

Question 92397: The product of two integers is 32. One integer is twice the other. What are the integers? Please help!
Click here to see answer by jim_thompson5910(28476)

Question 92319: One number is 2 times another. If the sum of their reciprocals is 1/5, find the two numbers. Define variables, set up equation and solve.
Click here to see answer by checkley71(8403)

Question 92593: Eight times the first of three consecutive odd integers is ten more than twice the second.
Click here to see answer by venugopalramana(3286)

Question 92652: If x and y are positive consecutive odd integers, where y > x, which of the following is equal to y^2-x^2?
(a) 2x
(b)4x
(c)2x+2
(d)2x+4
(e)4x+4
Click here to see answer by ankor@dixie-net.com(15622)

Question 92705: What are the factors, and what are the multiples of 42?
Click here to see answer by MARYMORNINGSTAR(1)

Question 92747: Evaluate: 7c/-b if b=-2 and c=8
Click here to see answer by bucky(2189)

Question 92914: The first side of a triangle is 40cm shorter than twice the second. The third side is 2cm longer than the second. The perimeter is 70 cm. Find the length of each side.
Click here to see answer by psbhowmick(529)

Question 92913: Separate 25 into two parts so that the second part is 5 less than twice the first part. Find each part.
Click here to see answer by psbhowmick(529)

Question 93074: Find two consecutive odd numbers whose product exceeds its sum by 119.
Click here to see answer by checkley75(3666)

Question 94158: 1) When is the sum of any three consecutive numbers odd? when is it even?
2)I am a 2-digit prime number. the sum of my digits is 5, and the difference between them is 3. What number am I?
Please help me answer these questions
Click here to see answer by Earlsdon(6287)

Question 94357: Find three consecutive integers such that the sum of the first and twice the third is one more than three times the second.
Click here to see answer by checkley71(8403)

Question 94583: number problem. If one-half of one integer is subtracted from three fifths of the next consecutive integer the defference is 3. What are the two integers.
Click here to see answer by ankor@dixie-net.com(15622)

Question 92792: If E is the set of even intergers, P is the set of positive integers, and F is the set of integers less than 5, which of the following integers will be in all three sets?
(A) 6
(B) 4
(C) 1
(D) 0
(E) -2
Click here to see answer by stanbon(57203)

Question 94708: If a clock loses 2 minutes every 15 hours how much times does it lose after 2 hours? Need help on how to solve. Answer is 4/15
Click here to see answer by stanbon(57203)

Question 94781: two numbers have a sum of 24.one number in 6 less than twice,the other.what are the numbers?
Click here to see answer by ptaylor(2048)

Question 94849: Find three consecutive even integers whose sum is ten less than four times the smallest integer.
Click here to see answer by hard(12)

Question 94849: Find three consecutive even integers whose sum is ten less than four times the smallest integer.
Click here to see answer by ptaylor(2048)

Question 95164: The sum of the digits of a two digit number is 12. The tens digit is three times the ones digit. What is the number ? Thank you
Click here to see answer by checkley71(8403)

Question 95163: The sum of the digits of a two digit number is 12. The tens digit is three times the ones digit. What is the number ? Thank you
Click here to see answer by stanbon(57203)

Question 89575: Dear Tutors,
Here is my word problem that I am having difficulty with -
At the beginning of the day a 100 lb. watermelon is 99% water. At the end of the day it is 98% water. How much does the watermelon weigh at the end of the day?
I don't know how to start this and I am not sure if it is some kind of trick problem. The only thing I can come up with is 100 x 1/99 + 100 x 1/98 = 1
but I don't think that is right. Help!
Thank you, Debra
Click here to see answer by edjones(7569)

Question 95431: what is the lowest number in a group of three consecutive numbers to equal 600
Click here to see answer by edjones(7569)

Question 95280: The difference between two numbers is 12. If 20 is added to twice the larger number the result is 4 more than 3 times the smaller number. Find the two numbers.
Click here to see answer by ankor@dixie-net.com(15622)

Question 95608: find three consecutive integers such that the sum of the first and the third integer is 8 less than the second integer.
Click here to see answer by ptaylor(2048)

Question 95835: write an expression for the sum of two consecutive even integers
Click here to see answer by stanbon(57203)

Question 95835: write an expression for the sum of two consecutive even integers
Click here to see answer by edjones(7569)

Question 95834: The sum of two consecutive odd integers is 116. Find the integers
Click here to see answer by edjones(7569)

Question 95826: Find three consecutive odd integers such that three times the second minus the third is 11 more than the first.
I set the equation up as follows:
3(x + 2) - x + 4 = x + 11
Thanks for your help
Click here to see answer by checkley71(8403)

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, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800