Questions on Word Problems: Problems with consecutive odd even integers answered by real tutors!

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Question 696811: To cover 14 km distance , anubhav cycles at a certain average speed. If he reduces his average speed by1 km/hr , he takes 20 min more to cover the same distance. find the original speed.
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Question 696792: Meeta can row her boat at 5km per hour in sill water.If she takes 1hr more to row the boat 5.25km upstream than to return downstream,find the speed of the stream.
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Question 696798: The time taken by Arushi to cover 150 km was 2hrs and 30 min more than the time taken in return journey. If she returned at a speed of 10km/hr more than the speed of going,find her speed in each direction.
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Question 696830: 6x2-5x-21=0 solve by the method of factorization.
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Question 696791: sheela can row a boat at the rate of 4km per hour in sill water.she takes 8 hrs in going 12km upstream and 12km downstream.find the speed of the stream.
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Question 696790: A fisherman can row a boat 8km downstream and return in 100min. If the speed of the stream is 2km per hour, find the speed of the boat in still water?
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Question 696828: The speed of the boat in still water is 15km/hr.It can go 30 km upstream and return to down stream in 41/2hrs.find the speed of the stream.
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Question 696921: PLEASE i need your help
Consider the accompanying contingency table, which presents the results of an advertising survey about the use of credit by Martan Oil Company customers.
Number of Purchases at Gasoline Station Last Year
Preferred Method of Payment
0–4
5–9
10–14
15–19
≥20
Sum
Cash
150
100
25
0
0
275
Oil-Company Card
50
35
115
80
70
350
National or Bank Credit Card
50
60
65
45
5
225
Sum
250
195
205
125
75
850
a. How many customers were surveyed?
b. Why are these bivariate data? What type of variable is each one?
c. How many customers preferred to use an oil-company credit card?
d. How many customers made 20 or more purchases last year?
can some one walk me through this PLEASE!!!

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Question 696910: Find three consecutive even integers such that when the first integer is multiplied by the third integer, the result is 2 more than 5 times the second integer. (only in algebraic solution)
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Question 696788: 5px^2-8x+2=0 solve using quadratic formula!
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Question 697006: PLEASE i need your help
ok im going to try to put it up that way again
Consider the accompanying contingency table, which presents the results of an advertising survey about the use of credit by Martan Oil Company customers.
Number of Purchases at Gasoline Station Last Year
Preferred Method of Payment 0-4 5-9 10-14 15-19 >20 sum
Cash 150 100 25 0 0 275
Oil-Company Card 50 35 115 80 70 350
National or Bank Credit Card 50 60 65 45 5 225
Sum 250 195 205 125 75 850
a. How many customers were surveyed?
b. Why are these bivariate data? What type of variable is each one?
c. How many customers preferred to use an oil-company credit card?
d. How many customers made 20 or more purchases last year?
i tried to put a cell in here and it wouldnt let me so this is the best i could do thanks

Click here to see answer by lynnlo(4176) About Me 
Question 697006: PLEASE i need your help
ok im going to try to put it up that way again
Consider the accompanying contingency table, which presents the results of an advertising survey about the use of credit by Martan Oil Company customers.
Number of Purchases at Gasoline Station Last Year
Preferred Method of Payment 0-4 5-9 10-14 15-19 >20 sum
Cash 150 100 25 0 0 275
Oil-Company Card 50 35 115 80 70 350
National or Bank Credit Card 50 60 65 45 5 225
Sum 250 195 205 125 75 850
a. How many customers were surveyed?
b. Why are these bivariate data? What type of variable is each one?
c. How many customers preferred to use an oil-company credit card?
d. How many customers made 20 or more purchases last year?
i tried to put a cell in here and it wouldnt let me so this is the best i could do thanks

Click here to see answer by MathTherapy(10551) About Me 

Question 697186: Solve: The sum of an integer and the next greater integer is at most 13. Write an inequality to find the lesser integer. Then solve for the lesser integer.
Click here to see answer by algebrahouse.com(1659) About Me 

Question 697384: if the correlation coefficient is 0.65, what is the sign of the slope of the regression line?
- As the correlation coefficient decreases from -0.97 to -0.99, do the points of the scatter plot move toward the regression line, or away from it?

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Question 697399: Find the mean and standard deviation of the following probability distribution:

x/P(x) 1/0.3 2/0.3 3/0.4
please somebody walk me through this

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Question 697397: Two cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of fives drawn in a set of 2 cards.

(A) If this experiment is completed without replacement, explain why x is not a binomial random variable.
(B) If this experiment is completed with replacement, explain why x is a binomial random variable

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Question 697398: A bag of colored blocks contains the following assortment of colors:
red (11), blue (22), orange (18), purple (13), green (10), and yellow (6).

Construct the probability distribution for x.

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Question 698033: can you help me "find three consecutive integers such that the first added to 3 times the second is 83"
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Question 698231: can you help me find two consecutive odd integers whose sum is 128 ?

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Question 698284: find three consecutive odd integers such that the largest decreased by three times the second is 47 less than the smallest
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Question 698568: Find the value of z such that approximately 10.26% of the distribution lies between it and the mean.
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Question 698562: Assuming a normal distribution, what is the z-score associated with the 90th percentile?
can some one help me with this and explain this to me

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Question 698609: The product of two consecutive integers is less than the square of the smaller integer. Find the larger of the two integers.

Click here to see answer by unlockmath(1688) About Me 

Question 697531: Classify the following as discrete or continuous random variables.

(A) The number of business majors at South University
(B) The time it takes to complete this assignment
(C) The blood pressures of patients admitted to a hospital in one day
(D) The number of people who play the state lottery each day

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Question 699093: Hello! I am a bit confused with this problem. PLEASE HELP ME.
find three consecutive even integers such that their sum decreased by the third is 82.

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Question 699283: find three consecutive positive even integers such that the product of the second and third integers is 15
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Question 699138: I must find, by a method other than induction, that 1+2^(6K+1)is divisible by 3.
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Question 699973: eight times a number is 11 more than four times the number
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Question 700129: Find three consecutive even integers such that twice the sum of the first and third integers is twenty-one more than the second integer
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Question 700163: find two consecutive integers such that the sum of the first and four times the second is 119
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Question 700578:
find two consecutive integers such that the sum of the first and four times the second is 119

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Question 700774: what are four consecutive integers that equal 98
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Question 700934: What are four consecutive integers whose sum is 98
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Question 701149: A department store offers a discount of a 2a-3 pesos for a pair of socks. If the regular price is 3a+8 pesos a pair, what is the cost of three pairs?

Click here to see answer by checkley79(3341) About Me 

Question 702315: For 2 consecutive integers, the result of adding the smaller integer and triple the larger integer is 79. What are the 2 integers?
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Question 702317: if 3^x =54, then which of the following must be true? The answer is 3
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Question 702567: Use expressions for odd integer to confirm the conjecture that the product of two odd integers is an odd integer.
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Question 702807: the sum of four odd integers is 24
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Question 702932: If x is an even integer, what would represent a lower even integer?
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Question 703197: find 3 consecutive even integers such that three times the first equals the sum of the other two
Click here to see answer by stanbon(75887) About Me 

Question 703375: The sum of the reciprocals of two consecutive positive integers is seventeen seventy-two. Write an equation that can be used to find the two integers. What are the integers?
Click here to see answer by nshah11(47) About Me 

Question 703801: Find four consecutive integers such that the sum of the two largest subtracted from twice the sum of the two smallest is 15.
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Question 704019: the sum of three consecutive odd integers is negative thirty three




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Question 704087: Find 3 consecutive integers so that 3 times the first increased by twice the
second is 2 less than 4 times the third one.
My idea starts: 3x + 2x = 4x - 2

Click here to see answer by sachi(548) About Me 

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