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Question 634479: You have 15L of 24% acid solution. How much water should you add in order to dilute the solution so that it is 8% acid?
Click here to see answer by stanbon(57354)

Question 634524: The total number of students in Year 8 at a high school is 180. There are 24 more girls than boys. How many boys are there??
Click here to see answer by Maths68(1474)

Question 634525: 1+2+3+4+5+6+7+8+9+10+..........+97+98+99
Click here to see answer by Alan3354(30993)

Question 634623: peter has 25 sweets and lilian has 55.how many sweets must peter give lilian so that lilian will have 4 timesas many sweets as peter?
Click here to see answer by richwmiller(9143)

Question 634621: a shopkeeper bought some eggs at 15cents each.six of them were broken while the rest wre sold at 20cents each.if he made a profit of $4.80,find how many eggs he bought?
Click here to see answer by richwmiller(9143)

Question 634545: word problem: answer with solutions
my hundreds digit is 2 more than my ones digit and my tens digit is 1 less than my hundreds digit. what numbers can i be?
Click here to see answer by Edwin McCravy(8909)

Question 634765: How much water must be added to 200 gallons of mixture which is 80 percent alcohol to reduce it to a 75 percent mixture?
Click here to see answer by richwmiller(9143)

Question 634950: a high school graduating class is made up of 396 students? There are 136 more girls. How many boys are in the class?
Click here to see answer by jim_thompson5910(28595)

Question 635052: A tugboat goes 120 miles upstream in 20 hours. The return trip downstream takes 5 hours. Find the speed of the tug boat without a current , and with a current.
Click here to see answer by Maths68(1474)

Question 635050: The width of a rectangle is 3 ft. less than the length. The area is 4 ft^2. Find the length and the width.
For some reason I cannot figure this out and I need it for a test can anyone help quickly
Click here to see answer by Maths68(1474)

Question 635254: a resterant manager want to purchase 200sets of dishes. One design cost $25 per set,while another cost $45 dollars per set. If she want to use her entire budget of $7800, how many of each design should be ordered?
Click here to see answer by stanbon(57354)

Question 635582: Trenton sells electronic supplies.Each week he earns 190 dollars plus commission equal to 4% of his sales. This week his goal is to earn no less than 500 dollars. Write and solve an inequality to find the amount of sales he must have to reach his goal.
Click here to see answer by lwsshak3(6505)

Question 635719: How soon after six o'clock will the hands of a clock be together?
Click here to see answer by richwmiller(9143)

Question 635726: How soon after one o'clock will the hands of a clock form a right angle?
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Question 635784: divide 174 into two parts so that one part is 45% of the other
Click here to see answer by MathLover1(6634)

Question 635784: divide 174 into two parts so that one part is 45% of the other
Click here to see answer by ewatrrr(10682)

Question 635784: divide 174 into two parts so that one part is 45% of the other
Click here to see answer by DrBeeee(378)

Question 635933: Macys and Dillards are both advertising positions for sales associates. The Macys position will pay $20,000 plus a 7% commission on all transactions completed by the sales associate. The Dillards position will pay $25,000 plus a 5% commission on all transactions completed by the sales associate. How much must be sold to make the Macys position the higher paying job?
CHOICES:
a. The sales associate should sell more than $100.

b. The sales associate should sell more than $1,000.

c. The sales associate should sell more than $25,000

d. The sales associate should sell more than $250,000.

Click here to see answer by DrBeeee(378)

Question 636010: A test consists of multiple choice questions worth 3 points and essay questions worth 5 points. The test has 17 questions that are worth a total of 65 points. Use a model to determine how many multiple choice questions are on the test

Click here to see answer by ewatrrr(10682)

Question 636081: Francis bought a stereo for x dollars and sold it at
a 3 percent profit. Which of the following gives the
amount of Francis’ profit?
Click here to see answer by solver91311(16885)

Question 636152: Alex has twice as much money as Jennifer. Jennifer has $6 less than shannon. Together they have $54. How much money does each have?
Click here to see answer by Tatiana_Stebko(1326)

Question 636153: A student received grades if 75 and 81 on the first two exams. What grade must the student ear on the last exam to get an average of no less than 80?
Click here to see answer by Tatiana_Stebko(1326)

Question 636224: One side of the rectangle is 1 dm less than it's diagonal. If the perimeter of the rectangle is 62 dm, find the area of the rectangle.
Click here to see answer by solver91311(16885)

Question 636243: you deposit $70 in a savings account that pays an annual interest rate of 3%. how much simple interest would you earn in 2.5 years?
Click here to see answer by solver91311(16885)

Question 636255: the tens digit of a certain number is 3 more than the one digit. The sum of the squares of the digits is 29. find the number.
Click here to see answer by sachi(392)

Question 636221: One number is three more than a second number. Forty-nine more than the product of the two numbers is 89. Find the numbers
Click here to see answer by ptaylor(2048)

Question 636312: I'm not sure if this is the right category, but here's the word problem.
"The population of butterflies in a local pasture is 60 in January 2010. In March 2010, the population of butterflies is 80. The population P of butterflies can be modeled by the equation P=ab^t where t is the number of months since January 2010 and a and b are constants.
A. Find the values of a and b in the model P=ab^t
B. According to the model, what will the population of butterflies be in January 2011?
C. According to the model, when will the population reach 200?
Click here to see answer by ewatrrr(10682)

Question 636227: The area of a 6 m by 4 m rectangle is to be doubled. By what equal amount must each dimension be increased?
Click here to see answer by math-vortex(472)

Question 636231: An 8 dm by 6 dm picture is to be photocopied in reduced size. The owner wants the copy to be half the size of the original picture. If the length and the width of the original picture will be reduced by the same measure, find the dimension of the photocopy.
Click here to see answer by ankor@dixie-net.com(15652)

Question 636406: In a bag there are 13 red marbles, 5 blue marbles, and 7 green marbles. What percent of the marbles are green?
Click here to see answer by Tatiana_Stebko(1326)

Question 636245: The sum of two numbers is 36.Find the numbers whose sum of their squares is a maximum.
Click here to see answer by ankor@dixie-net.com(15652)

Question 636417: three buddies own a car in fla. One partner owns 7/12 of a car the other owns 1/6. how much of the car does the third partner own?
Click here to see answer by ankor@dixie-net.com(15652)

Question 636418: Three freinds own a car in fla. one owns 7/12 of the car the second owns 1/6. How much does the third own?

Click here to see answer by PkGeci(6)

Question 636469: A 20m ladder and a 15m ladder were leaned against a building. The botom of the longer ladder was 7m farther from the bottom of the building than the shorter ladder, but both ladders reached the same distance up the building. Find the distance.
Click here to see answer by DrBeeee(378)

Question 636519: Select any two integers between -12 and +12 which will become solutions to a system of two equations.
Write two equations that have your two integers as solutions. Show how you built the equations using your integers. Your solution and equations should not be the same as those of other students or the textbook. There are infinite possibilities.
Solve your system of equations by the addition/subtraction method. Make sure you show the necessary 5 steps. Use the example on page 426 of Mathematics in Our World as a guide.

Click here to see answer by ankor@dixie-net.com(15652)

Question 636721: The greater of two number is 8 times the lesser and their sum is 180.Find the number.
Click here to see answer by sachi(392)

Question 636727: The difference between 3/4 of a line and 2/5 of the same line is 28cm.Find the length of the line.
Click here to see answer by sachi(392)

Question 636765: Please help. Due tomorrow.
1.)A box is to be formed by cutting squares measuring 2 cm on a side from a square piece of cardboard and then folding the sided. If the volume of the box is to be 392 cm squared, what is the original size of the cardboard?
2.)Manuel is constructing a model house. He wants each window to have an area of 315cm squared, and he wants the length of each window to be 6 cm more than the width. What are the dimensions of each window?
3.)A circle has a radius of 20 cm. By how much must the radius be increased so that the area will increase to 144 pie cm squared?
4.)An airplane flies 900 miles against a headwind if 25 miles per hour. The plane took 15 minutes longer for this flight than with a tailwind of 25 miles per hour. How fast could the plane fly in still air?
Click here to see answer by KMST(1868)

Question 636897: sold a combined total of 211 sodas and hotdogs, number is soda was 45 morethan hotdogs.
Click here to see answer by checkley79(3050)

Question 637362: Qantas shares pay a yearly return of 9% and Telstra shares pay 11%. John invests $1500 more on Telstra shares than on Qantas and his total yearly earnings from the two investments is $1475. How much did he invest in Qantas shares?
Click here to see answer by god2012(108)

Question 637430: -2x+3y=-37.5
-4x+0y=-24
Click here to see answer by checkley79(3050)

Question 637513: During the class period,the number of girls is ten more than four times the number of boys.formulate two linear equations from the statement to determine the number of boys in the class if the total number of students in that class is one hundred.let the number of boys be represented by variable y and let the number of girls be represented by variable x.
Click here to see answer by ankor@dixie-net.com(15652)

Question 638212: Factorize 36a^2-12a+1
Click here to see answer by lwsshak3(6505)

Question 638354: A professor announces that course grades will be computed by taking 40% of a student's project score (0-100 points) and adding 60% of the students final exam score (0-100 points). If a student gets an 86 on the project, what scores can she get on the final exam to get a course grade of at least 90?
These are some conclusions I've made, which may or may not be correct.
40%(86)+60%(x) is greater than or equal to 90. I am confused by the word "And" in the problem. Does this let me know that this is a compound inequality? If so, what other numbers do I use to create another inequality...100?
Click here to see answer by ankor@dixie-net.com(15652)

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