I am a 3digit number. My first digit is thrice my last digit. The sum of my last two digit is one less than my last digit
145,873 results, page 89

Chemistry
Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the gases are allowed to mix. What would be the final pressure in torr after mixing, if initially H2 is in the first flask (Volume = 4.000 L) at 271.8 torr and CCl4 is in the second... 
Physics/Math
In the vector sum A + B = C , vector A has a magnitude of 13.1 m and is angled 49° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 20.0° counterclockwise from the x direction. What are (a) the magnitude and (b) the direction (... 
Stat
Does anyone know how to solve for this Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard ... 
Math
Can you Check my work please? Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000. b. Write down two equations for P and a, one when t = 4 and the other when t = 8. c. Use ... 
Excel
I have to create a payroll document for class using Excel and I am quite confused. Here is the parts that I am confused on. I have to calculate the number of years the employees have been working for us, I believe the function I need to use is TODAY() but it is not working, ... 
Math please help
1. Simplify the expression ((5x^2)/(4x^2))^2 2. (x)/(x^281)(9)/(81x^2) = For the first one the answer was 16x^8/25 but I don't know how to get that. For the second one the answer is 1/x9 and I also don't know how to get that one. 
Math
Fred and Jane are brother and sister. Fred is 3years older than twice jane's age. The sum of their ages is less than 36. Taking jane's age To be x years form a inequation. What can you say about jane's age. 
Math
1. If you flip a fair coin 10 times, what is the probability of a) getting all tails Is it 1/1024? b) getting all heads Is it 1/1024? c) getting at least one tails? Is it 1023/1024? 2. If you roll a pair of fair dice, what is the probability of a) getting a sum of 1 Is it 0? b... 
Riddle HELP
There are tree stoves. A glass stove, a brick stove, and a wood stove. You only have a match. Which do you light up first? Two cops walked into a room with no windows and found a dead man who obviously hung himself from the ceiling, though they couldn't figure out how. There ... 
Math
emma throws the javelin for the track team. At one meet she threw the javelin twice. One the first attempt she three 28 meter and on the second attempt she threw 32 meters. What is the ratio between the length of the first throw and the second throw? 
human relations
one taxi cab company charges 75 cents for the first quarter mile and 15 cents for each additional quarter mile. the competing taxi company charges 1.00 for the first quarter mile and 10 cents for each additional mile. what distance would produce the same fare for the two taxi ... 
intermediate algebra
1. Two numbers differ by 8. If onehalf the larger is added to onefourth the smaller, the resulting sum is 22.Find the numbers. 2. Ten years ago a man was three times as old as his son. In 12 more years the son is threefifths as old as his father. How old are they now? 3. A ... 
Math
Jim pays $75 per month for a cell phone plan plus $0.30 per minute be on the first thousand minutes write an equation for the cause (y) based on the number of minutes(x)after the first 1000 I have become very confused. 
math
It was noticed that some cars have license plates with 3 letters followed by three numbers while other license plates have 3 numbers followed by 3 numbers if neither letters nor numbers can repeat what is the probability of getting the letter A in the first letter slot and ... 
Calculus
Let R be the region in the first quadrant under the graph of y=1/sqrt(x) for 4</=x</=9. (a)Find the area of R. I took the antideriative. Then, I plugged in the 9 and 4. I got 2. (b) If the line x=k divides the region R into two regions of equal area, what is the value of... 
science
my first is VAN but not in PAN,my second is EARTH and also in HEAVEN,my third is ONE and not in two,my fourh is in BUN and also in FUN,my last is in STAR but not in RADAR,i am a planet that moves round the sun.name the planet. 
math
If Martha read one book a week for the first week and double the number of books each week for the next 5 weeks. She would have read 32 books the sixth week. Am I correct 
Math
1) for any three consecutive numbers, what can you say about odd numbers and even numbers? Explain. 2 A)Mirari conjectures that, for any three consecutive numbers, one number would be divisible by 3. Do you think Mirari is correct? Explain. 2 B) Gia claims that the sum of any ... 
Math Help!
Write an expression in algebra for each of the following: 1. the number of cents in x dimes 2. the difference if four is subtracted from x 3. the sum of three consecutive integers 4. the product of three consecutive integers plz help i don't get these questions Use N to ... 
math
Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first need to exchange dollars for British pounds, ... 
Math
Did I do this problem right? How many three symbol codes (letternumbernumber) can be made from the letters S,P,Y and two digits from the set {0,1,2,...,9} without repetition? Answer: 3*10*9=270. 
Math
A new quarterback has to pick two number that will go on his football shirt. How many pair of number can be make from the digits 3,5,7,and 9? What are all the possible choice?Explain how you arrived at your answer. 
9GR
3. Which statement is true about the following set of data? 18, 17, 21, 24, 21 1.The mean is greater than the median. 2.The median is less than the mode. 3.The mean and median are the same number. 4.The median and the mode are the same number. 
statistics
The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records, they have found that the length of a first interview is normally distributed, with mean μ = 31 minutes and standard ... 
Math
Two painters can paint a room in 2 hours if they work together. The less experienced painter takes 4 hours more than the more experienced painter to finish the job. How long does it take for the less experienced painter to paint the room individually? Round to 2 decimal places. 
Biology
Which of these two molecules is LESS involved in cell communication? Carbohydrates OR Lipids 
noun
if two dices are tossed together, the probability that the product will be less or equal to 18 what? 
math
the product of two numbers is 161. twice the smaller is 9 less than the larger 
Math, rational inequalities
Please can someone help me solve this problem? 2/x + 6/x1 less than or = 5 8/x 1 <= 5 Now add 1 to each side 8/x <= 4 so x must be < 0 Multiply both sides by x (a negative number). This means you have to change the direction of the > 8 >= 4x Divide both ... 
physics
A particle with a charge of 5.0 μC and a mass of 4.3 x 106 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 18 m/s. The only force acting on the particle is the electric force. What is the potential difference VB  VA ... 
math
For a bake sale Yolanda made 3 less than 5 times as many loaves of bread as her brother, Xander. If Y is the number of loaves Yolanda made and x os the number os loaves Xander made, which equation shows this relationship? A) Y=5x3 B)Y3=5x C)Y=5+x3 D)Y=5(x3) 
MATH
For a bake sale Yolanda made 3 less than 5 times as many loaves of bread as her brother, Xander. If Y is the number of loaves Yolanda made and x os the number os loaves Xander made, which equation shows this relationship? A) Y=5x3 B)Y3=5x C)Y=5+x3 D)Y=5(x3) Is it A? 
math
Translate the following situation into an inequality. Do not solve. “Charlie would like to pack one less outfit than Jane for their trip. Loretta would like to bring five outfits less than twice what Jane packs. Due to space in the suitcase, they are limited to a total of 24... 
MathStatistics
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity varied according to the N(373, 67) distribution. ... 
Chemistry
25 mL of a 0.10 M solution of the weak acid hydrofluoric acid, HF, (Ka = 7.2 x 104) is titrated with a 0.10 M solution of the weak base ammonia, NH3 (Kb = 1.8 x 105). Will the pH at the equivalence point be less than 7, equal to 7, or greater than 7? Explain. I’m guessing ... 
Multiple Choice HELP!
What is a counterexample for the conjecture? Conjecture: The product of two positive numbers is greater than the sum of the two numbers. A. 3 and 5 B. 2 and 2 C. A counterexample exists, but it is not shown above. D. There is no counterexample. The conjecture is true. I think ... 
Computer science
If we have any five numbers. how do we find maximum and minimum number of those. You take the first number and store it in variable Min and Max. Then you take the second number. If that number is larger than the variable Max you overwrite Max and store that varible there. If ... 
physics/math
Does the formula Sum of internal angles of a polygon = (n  2)x180 degrees, where n represents number of sides, work for polygons of interacting sides? 
Mathematics
Given the set of integers {1,2,3,…,801}, what is the maximum number of sets we could distribute these numbers into such that the sum of each set is exactly the same? 
Maths
Given the set of integers {1,2,3,…,801}, what is the maximum number of sets we could distribute these numbers into such that the sum of each set is exactly the same. 
algebra
given any seven positive integers, show that at least two must exist whose sum or difference is divisible by 10. 
math
Two rational numbers with the sum of 1, product of 6/25 and quotient of 6. ( I have been working on this for a long time but I can't figure it out!) 
Math urgent
If two "fair" dice are tossed what is the probability that the sum of their faces will be a multiple of 3? Show or explain how you got your answer? 
math
Can you find two positive numbers whose sum and product are both 5? Round off to nearest hundredth, please. 
Math
Find two consecutive odd integers such that the sum of four times the larger and twice the smaller is 194. Help Thank you! 
Math
Find two consecutive even integers such that the sum of the larger and 3 times the smaller is 234. I don't get how to put it as in equation. 
4th grade math
please help!! I have no idea how to do these I am trying to help my son.. Find two mixed numbers so that the sum is 21 1/6 and the difference is 4 3/6? 
chemistry
just take H2O AND CH3CH2OH as example.why say that h2o can form two hydrogen bond per molecule but CH3CH2OH only one.i am confused as both of them also has two lone pairs per molecule,is it true that one hydrogen atom will result in only one hydrogen bond and two hydrogen bond... 
MATH
Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first need to exchange dollars for British pounds, ... 
English
Which is a simple sentence? 1. Given the time of day,we were lucky to find a taxi. 2. Shelia used the lawnmower and Jacob drove the tractor. 3. Eventually she will. 4. Jennifer and Brian gave money to the orphanage. Would number 4 be an example of a simple sentence? There are ... 
Calculus
Solve the differential equation. Let C represent an arbitrary constant. (Note: In this case, your answer willto have a negative sign in front of the arbitrary C.) (dz)/(dt) + e^(t+z) = 0  (dz/dt) + (e^t)(e^z) = 0 (dz/dt) = (e^t)(e^z) dz = (e^t)(e^z)dt (dz/e^z... 
Physics
Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x 105 m and strike a screen 1.30 m from the slit. Two diffraction patterns are formed on the screen. What is the distance (in cm) between the common ... 
Physics
Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 4.47 x 105 m and strike a screen 1.70 m from the slit. Two diffraction patterns are formed on the screen. What is the distance (in cm) between the common ... 
physics
Show that the amplitude of the first reflected ray is equal to the sum of amplitude of all other reflected rays. 
maths
The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is 80 . Find the terms of A.P. 
maths
The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is 80 . Find the terms of A.P. 
maths
The first term of a geometric sequence is 31(1/4),the last term is 2 and the sum of the associated series is 50(3/4).what is the common ratio and how many terms are there in the series? 
maths
in a GP the sum of first and fifth term is 34 and the product of second ,third and fifth term is 512.find the numbers. 
need help
whats the definition of a biconditional "an acute angle is an angle whose measue is less than 90 degress" 1. if it measure is less than 90 degrees 2.if and only if its measure is less than 90 degrees 3. measure is less than 90 degrees if it is acute 4. if and only if it is not... 
Geometry
Ok, this is going to be confusing to write, but I'll do my best... <=angle T=perpendicular to (when upside down) (Write proof in twocolumn form) Given: <JMK=<LMK; segment MK T plane P Prove: segment JK = segment LK There is a plane (P) and there are two obtuse ... 
math
if a sum of money doubles in 8 yrs, in how many years will it triple itself?Is the answer 16? If it is please tell me how to show the workings. I understood the concept but cannot express it.This is a simple interest sum. 
MATH
Expand f(x)=ln (1+x/1x) in a Taylor Series about x=0. You must express your answer using summation notation. This is what I tried to do So I was thinking of taking the derivative of ln(1+x/1x) and get 2/x^21 And then use the identity 1/1x= sum x^k So then it will be ... 
MATH
11.) A company produces a product for which the variable cost is $12.30 per unit and the fixed costs are $98,000. The product sells for $17.98. Let x be the number of units produced and sold. a.) the total cost for a business is th sum of the variable cost and the fixed costs... 
Philosophy
I need help understanding the following passage: “Could we suppose two distinct incommunicable consciousnesses acting in the same body, the one constantly by day, the other by night; and, on the other side, the same consciousness, acting by intervals, in two distinct bodies... 
Philosophy
I need help understanding the following passage: “Could we suppose two distinct incommunicable consciousnesses acting in the same body, the one constantly by day, the other by night; and, on the other side, the same consciousness, acting by intervals, in two distinct bodies... 
C programming
Please name your submission of this problem as b.1.c (20 pts) and b.2.c (20 pts) You are the official score keeper for the "C" Bowling Association (CBA). You should write a program that will: a. Input date of game (three integers yyyy/mm/dd). b. Input bowler'... 
Math
Two towns are 420 miles apart. A car leaves the first town traveling toward the second town at 55 mph. At the same time, a second car leaves the other town and heads toward the first town at 65 mph. How long will it take for the two cars to meet? 
arithmetic
Steve's mom's age is 7 years less than 3 times Steve's age. The sum of their ages is 65 years. Find their ages. 
Math
Steves mom age is 7 years less than 3 times steves age. The sum of their ages is 65 years. Find their ages. 
algebra
Steve's mon's age is 7 years less than 3 times Steve's age. The sum of their ages is 65 years. Find their ages. 
science
whats my height in meters? my height is 5'3" 63 inches x 2.54 cm/inch = 160.0 cm = 1.600 meters You learn to do these by dimensional analysis. We know there are 39.37 inches in 1 meter. First, convert your height to inches so we are dealing with one item instead of feet AND ... 
Statistic
The number of customers who enter a supermarket each hour is normally distributed with a mean of 600 and a standard deviation of 200. The supermarket is open 16 hours per day. what is the probability that the total number of customers who enter the supermarket in one day is ... 
combinatorics
1. You have k slots (of the same size) to drop n tokens into. How many ways can you do this if the tokens are marked? Unmarked? (Hint: try with 3 tokens and 7 slots first) 2. What is the probability of getting them all in the unique “winning” slot? (Do you use the marked ... 
Algebra
Solve the system 9x5y=119 18x10y=238 Double both sides of the first equation and you have 18x10y =238 which is the same as the second equation. Since the two equations are not independent, there are no unique solutions. Thee are an infinite number of pairs of x and y that ... 
Engineering Economy
The football coach at the Midwestern university was given a 5yr employment contract that paid $22500 the first year and increased at an 8% uniform rate in each subsequent year. At the end of the first year's football season, the alumni agreed to buy his remaining years on the ... 
math
The 20 leaves of a 40page book are numbered 1 through 40. The first and last leaves are ripped out. What is the sum of the remaining page numbers? 
Math
A sequence of four integers is both arithmetic and geometric. if the sum of the four numbers is 20, find the first integer in the sequence. 
Maths  Geometric Progression
The second term of a GP is 1/2 and the sum ti infinity of the series is 4. Find the first term and and the common ratio of the series. 
mathematics
The sum of first m terms of an A.P is 5m²+3m. If its nth term is 168. Find the value of m. Also find the 20th term. 
Ap series
Sum of first six term of an ap is 46 ratio of its 10th term to that of 30th term is 1:3. Find its 13th term 
Geometric progression
The first term of an infinite geometric progression is 1 and the sum of the terms is 13, find common ratio. 
math
Suppose that n tennis players want to play an elimination tournament. That means: they pair up, at random, for each round; if the number of players before the round begins is odd, one of them, chosen at random, sits out that round. The winners of each round, and the odd one ... 
algebra word problem
One year, Shannon made $288 from two investments. $1100 was invested at one yearly rate and 1800 at a rate that was higher. Find the two rates of interest. 
algebra word problem
One year, Shannon made $288 from two investments. $1100 was invested at one yearly rate and 1800 at a rate that was 1.5% higher. Find the two rates of interest 
Physics
A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this? 
Physics
A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this? 
Physics
A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up of East. Calculate the force in the first rope (F1) in Newtons. How would I do this? 
Science (Chemistry)
Can someone explain why the ratio of magnesium ions to chloride ions in MgCl2 is 1 :2 Mg is in group IIA and has two electrons in its outside shell. Cl is in group VIIA and has seven electrons in its outside shell. Mg wants to lose two electrons; Cl wants to gain one electron... 
KEYBOARDING
1. When keying, it's important that you keep your eyes on the A. computer monitor. B. source copy. C. keyboard. D. home row keys. 2. In the inside address of a letter, how many times do you space after a period following the abbreviation Ms.? A. None B. One time C. Two times D... 
statistics
Siegel found that elderly people who owned dogs were less likely to pay visits to their doctors after upsetting events than were those who didn’t own pets. Similarly, consider the following hypothetical data. A sample of elderly dog owners is compared to a similar group (in ... 
Geometry
in two congruent triangles the ratio of lengths of two corresponding sides is 5:8. If the perimeter of the larger triangle is 10 ft less than twice the perimeter of the smaller triangle find the perimeter of each triangle 
PreCalculus
I need help with a Matrix Algebra problem A small school has 100 students who occupy three classrooms A, B, and C. After the first period of the school day, half the students in room A move to room B, onefifth of the students in room B move to room C, and onethird of the ... 
Math
You have the number 1,000,000,000 (one billion). What is one hundredth of that number? 
Math
A taxi company charged $4.40 for a 2 mile trip. It charges certain amount for each 1/5 mile traveled. It charges twice as much for the first 1/5 mile. How muchis charged for the first 1/5 mile and each 1/5 mile after the first one? 
Physics
you a resident physician are reading the medical chart o a normal adult female patient carelessly one of the nurses has entered this nurse's suggestion is physically reasonable: (a) the number is 150 and units are kilograms. (b) the number is 4.25 and the units are slugs. (c) ... 
Math HURRY !!!!!!!!
Please Help me Explain how ratios can be used to compare two numbers I searched the web and I didn't understand it I think this might help me but could someone help me put it in a sentence The 1st number in a ratio tells the amount thtat shows up for every 2nd number Example: ... 
Math! Please check!
Okay, so this one is going to be a bit difficult to answer as I cannot post my number line, so you may just have to visualize it, or draw it out on paper. If HI = GM at what coordinates could point M lie? Point H is at 8 on the number line and point I is at 14 on the number ... 
math
Find the number of 6 term strictly increasing geometric progressions, such that all terms are positive integers less than 1000. 
Geometry
Find the number of 6 term strictly increasing geometric progressions, such that all terms are positive integers less than 1000. 
Math
Of 20 scores, 19 are less than or equal to 10. Find the percentile rank of 10. They don't give you the exact number of tens so i don't really know how to do this? Could someone please explain?