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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.
Click here to see answer by stanbon(75887)

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.
Click here to see answer by stanbon(75887)

Question 696830: 6x2-5x-21=0 solve by the method of factorization.
Click here to see answer by Simnepi(216)

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.
Click here to see answer by josmiceli(19441)

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?
Click here to see answer by lwsshak3(11628)

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.
Click here to see answer by lwsshak3(11628)

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!!!
Click here to see answer by stanbon(75887)

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!
Click here to see answer by ankor@dixie-net.com(22740)

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)

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)

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?
Click here to see answer by jim_thompson5910(35256)

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

Click here to see answer by Positive_EV(69)

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
Click here to see answer by Positive_EV(69)

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.
Click here to see answer by Positive_EV(69)

Question 698033: can you help me "find three consecutive integers such that the first added to 3 times the second is 83"
Click here to see answer by solver91311(24713)

Question 698231: can you help me find two consecutive odd integers whose sum is 128 ?

Click here to see answer by rfer(16322)

Question 698284: find three consecutive odd integers such that the largest decreased by three times the second is 47 less than the smallest
Click here to see answer by neatmath(302)

Question 698568: Find the value of z such that approximately 10.26% of the distribution lies between it and the mean.
Click here to see answer by stanbon(75887)

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
Click here to see answer by stanbon(75887)

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)

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

Click here to see answer by Simnepi(216)

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.

Click here to see answer by ankor@dixie-net.com(22740)

Question 699283: find three consecutive positive even integers such that the product of the second and third integers is 15
Click here to see answer by Simnepi(216)

Question 699138: I must find, by a method other than induction, that 1+2^(6K+1)is divisible by 3.
Click here to see answer by KMST(5328)

Question 699973: eight times a number is 11 more than four times the number
Click here to see answer by smaraya(8)

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
Click here to see answer by josmiceli(19441)

Question 700163: find two consecutive integers such that the sum of the first and four times the second is 119
Click here to see answer by checkley79(3341)

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
Click here to see answer by Alan3354(69443)

Question 700934: What are four consecutive integers whose sum is 98
Click here to see answer by stanbon(75887)

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)

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
Click here to see answer by MathLover1(20849)

Question 702567: Use expressions for odd integer to confirm the conjecture that the product of two odd integers is an odd integer.
Click here to see answer by solver91311(24713)

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?
Click here to see answer by checkley79(3341)

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)

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)

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.
Click here to see answer by josgarithmetic(39617)

Question 704019: the sum of three consecutive odd integers is negative thirty three

Click here to see answer by josgarithmetic(39617)

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)

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