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# Recent problems solved by 'josmiceli'

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 test/430961: which 3 consecutive numbers have a sum of 7201 solutions Answer 299207 by josmiceli(9669)   on 2011-04-04 11:46:52 (Show Source): You can put this solution on YOUR website!Let the numbers be , , and The numbers are 239,240, and 241
 Parallelograms/430960: A parrallelogram has an area of 52 centimeters and its base is 2h+5. What is the hight. Please1 solutions Answer 299205 by josmiceli(9669)   on 2011-04-04 11:41:56 (Show Source): You can put this solution on YOUR website!Call the height given:
 Volume/430958: A candy company makes decorative cylinder-shaped canisters and fills them with red hot candies. They want to make 600 canisters and need to determine how much candy to buy. If the canisters are 6 inches in diameter and 5 inches tall, what is the total number of cubic inches that will be filled with candy? (don't forget the units that go with the answer)1 solutions Answer 299203 by josmiceli(9669)   on 2011-04-04 11:37:14 (Show Source): You can put this solution on YOUR website!The area of the base is in2 The volume of each canister is in3 The volume contained in canisters is canisters x in3/canister = in3
 Numbers_Word_Problems/430951: the difference of two consecutive odd integers are 64. what are the numbers?1 solutions Answer 299198 by josmiceli(9669)   on 2011-04-04 11:25:21 (Show Source): You can put this solution on YOUR website!The difference of 2 consecutive odd integers can't be . The difference is always 113 - 111 = 2 1079 - 1077 = 2 etc.
 Sequences-and-series/430945: (n+2)!/(n)!1 solutions Answer 299196 by josmiceli(9669)   on 2011-04-04 11:17:49 (Show Source): You can put this solution on YOUR website!Note that
 Finance/430950: How would I solve the problem for x? 1.10/x-.10=22 Thanks!1 solutions Answer 299193 by josmiceli(9669)   on 2011-04-04 11:12:03 (Show Source): You can put this solution on YOUR website! Multiply both sides by Add to both sides
 Polynomials-and-rational-expressions/430943: The problem: one-half of a number is 25 more than one-third of the same number. I got 150 but i need to show a check on it and don't know how1 solutions Answer 299192 by josmiceli(9669)   on 2011-04-04 11:05:39 (Show Source): You can put this solution on YOUR website! Multiply both sides by I'm not sure what kind of check is needed, but OK
 Graphs/430925: Solve each system by any method. show work or grapg. Y=2x-6 Y=-2x+21 solutions Answer 299173 by josmiceli(9669)   on 2011-04-04 09:51:07 (Show Source): You can put this solution on YOUR website!(1) (2) Add the equations divide both sides by Now plug this result back into either (1) or (2) (1) Add to both sides Divide both sides by The solution is (2,-2). Here' the plot:
 Travel_Word_Problems/430919: the average speed of a car is 108 km/hr. How many meters can the car travelin 3 minutes?1 solutions Answer 299172 by josmiceli(9669)   on 2011-04-04 09:40:46 (Show Source): You can put this solution on YOUR website! km/hr x m/km x hr/min x min = m
 Age_Word_Problems/430920: A father is 36 years old, and hi son is 6 years old. In how many years' time will the father be twice as old as his son?1 solutions Answer 299170 by josmiceli(9669)   on 2011-04-04 09:29:23 (Show Source): You can put this solution on YOUR website!Let = years from now when father is twice as old as his son In 24 years from now the father will be twice as old as his son
 Probability-and-statistics/430923: Assume that 40% of the population are right-handed and the remainder are left-handed(there are not ambidextrous individuals). If you stop the next 6 persons you meet, what is the probability that( for the purpose of this problem assume indepencence in the selection of the indivduals): All will be left-handed? 4.7%1 solutions Answer 299169 by josmiceli(9669)   on 2011-04-04 09:23:31 (Show Source): You can put this solution on YOUR website!For each of the 6 persons, will be left-handed on average. If you want all 6 to be left-handed, multiply the probabilities 4.7%
 Circles/430893: Pie Chart percentage question.Thank you for taking the time to answer this question.There are 130 students. 68 like chocolate ice cream. 52 like Vanilla. I want to know what percentage like each flavor. I thought 68/130=52% and 52/130=40% Why doesn't the total = 100%? The answer should be 57% chocolate and 43% vanilla??? How is that done? and what did I do wrong???? Thank you so much for your time and more important your knowledge.1 solutions Answer 299168 by josmiceli(9669)   on 2011-04-04 09:08:01 (Show Source): You can put this solution on YOUR website!Since , they either didn't poll all the students, or the other 10 students didn't like either flavor. If you take , , and take But then the question must be "Of the students who were able to answer the question, what percent liked each flavor?
 Quadratic-relations-and-conic-sections/430913: y2= -2x+12 Is this a parabola, ellipses or hyperbola1 solutions Answer 299166 by josmiceli(9669)   on 2011-04-04 08:49:26 (Show Source): You can put this solution on YOUR website!It's a parabola. Here's the plot
 Volume/430914: A room is 314 square feet, what size rug should i get1 solutions Answer 299165 by josmiceli(9669)   on 2011-04-04 08:37:52 (Show Source): You can put this solution on YOUR website!You have to know the shape of the room. Is it square? If so, each side of the rug is ft long, or 17.72 x 17.72
 Distributive-associative-commutative-properties/430697: How can I solve x^2-12x=-36 by factoring? So far This is the work I have accomplished: X^2-12x=-36. Stating the original problem X^2-12x+36=0 Add 36 to each side (x-6)(x-6). Factoring But then I get confused. Can you help?1 solutions Answer 299053 by josmiceli(9669)   on 2011-04-03 19:17:09 (Show Source): You can put this solution on YOUR website!You solved it (1) This is called a double root. The graph touches the x-axis in one place What value of makes (1) true? makes it true. That's the solution. Here's the graph:
 Numbers_Word_Problems/430696: the sum of two consecutive odd integers is 24. which equation can be used to find the first integer n? n+1=24 n+2=24 2n+1=24 2n+2=241 solutions Answer 299050 by josmiceli(9669)   on 2011-04-03 19:10:27 (Show Source): You can put this solution on YOUR website!Call the smaller number The next higher odd number is given: answer
 Mixture_Word_Problems/430647: Gina has a pile of 50 dimes and nickels worth \$4.30. How many coins of each type does she have?1 solutions Answer 299041 by josmiceli(9669)   on 2011-04-03 17:48:31 (Show Source): You can put this solution on YOUR website!She can't have an odd number of nickels, since that would give her a 5 in the units position, like \$4.35. --------------------------- She can't have all dimes, since that would equal \$5.00, which is \$.70 too much --------------------------- Suppose she had 40 dimes, making \$4.00. She needs \$.30, which is 6 nickels. 46 coins isn't enough. --------------------------- If she has 30 dimes, that's \$3.00, and \$1.30 must be made up with nickels. That's 26 nickels, and 30 + 26 = 56, which is too much --------------------------- 36 dimes = \$3.60, leaving \$.70 woth of nickels, or 14 nickels, and 14 + 36 = 50 --------------------------- She has 36 dimes and and 14 nickels
 logarithm/430342: convert to exponential form log x = 81 solutions Answer 298870 by josmiceli(9669)   on 2011-04-02 20:58:20 (Show Source):
 Quadratic_Equations/430055: One concert ticket costs \$90. For each addl ticket sold to the group, the price of all tickets is reduced by \$3. So 2 tickets costs 2x84 = \$174, etc. Write a quadratic function that gives the total cost, C, of buying x tickets. 1 solutions Answer 298635 by josmiceli(9669)   on 2011-04-01 17:56:48 (Show Source): You can put this solution on YOUR website!In words: Cost = ( cost of 1 ticket minus [\$3 x (extra tickets)] x total number of tickets check answer: For 2 tickets: OK Notice that for 30 tickets, The total cost is only \$90
 Finance/430026: A little help please!? How much do you have to invest today at 5% interest if you want to have \$18,000 in 6 months? 1 solutions Answer 298629 by josmiceli(9669)   on 2011-04-01 16:13:27 (Show Source): You can put this solution on YOUR website!This is a "simple interest" problem Let = amount to invest @ 5% yearly interest Hopefully this is right- I'd try a 2nd opinion, too.
 Radicals/430024: I need to solve this equation algebraically sqrt (x+1)= cube root (4x-4)1 solutions Answer 298628 by josmiceli(9669)   on 2011-04-01 15:58:52 (Show Source): You can put this solution on YOUR website!Raise each sides to the 6th power This has me stumped. I can say I can say I'll rewrite the equation Add to both sides Looking at this, the answer seems to be between and . Maybe you can find a cubic equation solver on the internet.
 Square-cubic-other-roots/430011: If -5=1, then x=? A. -8 B. 8 C. 9 D. 12 e. 181 solutions Answer 298621 by josmiceli(9669)   on 2011-04-01 14:48:46 (Show Source): You can put this solution on YOUR website! Add to both sides Square both sides e. is the answer
 Linear-systems/430004: solve by elimination, to include solution (if any) and ordered pair 0.05x+0.25y=11 0.15x+0.05y=121 solutions Answer 298620 by josmiceli(9669)   on 2011-04-01 14:45:02 (Show Source): You can put this solution on YOUR website!(1) (2) Multiply both sides of (1) and (2) by (1) (2) Multiply both sides of (2) by and subtract (1) from (2) (2) (1) And (1) (1) (1) (1) (70,30) answer
 Evaluation_Word_Problems/429994: This is a multiple choice answer. Find the remainder when x^3-5x^2+8 is divided by x-2. You must make adjustments for the missing x term. 0,-4,-20,-32 I would really appreciate some help on this! :)1 solutions Answer 298616 by josmiceli(9669)   on 2011-04-01 14:34:44 (Show Source): You can put this solution on YOUR website!I get for a remainder The 1st term of the answer is and Subtract this from You get The 2nd term of the answer is Subtract this from You get Add , getting The 3rd term of the answer is Subtract this from You get the remainder,
 Percentage-and-ratio-word-problems/429790: 1 lb. soy meal has 14% protein 1 lb. corn meal has 7% protein How many pounds of each is mixed together for a total weight of 280 lbs. with a 11% protein1 solutions Answer 298493 by josmiceli(9669)   on 2011-03-31 21:10:45 (Show Source): You can put this solution on YOUR website!Let = pounds of soy meal needed Let = pounds of corn meal needed given: (1) (2) ------------------ (1) (1) (1) Multiply both sides of (2) by and subtract (2) from (1) (1) (2) and, since (2) 160 pounds of soy meal is needed 120 pounds of corn meal is needed
 Polynomials-and-rational-expressions/429760: What are factors of -36 that when you add them it will equal -36 and when you multiply them you get -361 solutions Answer 298487 by josmiceli(9669)   on 2011-03-31 20:57:30 (Show Source): You can put this solution on YOUR website!I'll say the factors are conjugate complex numbers and ---------------- The factors are and
 test/429781: How can I solve this equation: 4x-2=3y-1 ?1 solutions Answer 298485 by josmiceli(9669)   on 2011-03-31 20:37:08 (Show Source): You can put this solution on YOUR website! Add to both sides Divide both sides by Now just write it with on the left side Here's the plot:
 Travel_Word_Problems/429677: If I have a vehicle and it gets 10 miles per gallon and has a 55 gallon gas tank and we are traveling a total of 1500 miles how many tanks of gas will we consume?1 solutions Answer 298425 by josmiceli(9669)   on 2011-03-31 16:59:53 (Show Source): You can put this solution on YOUR website!First, I figure out the units without numbers (tanks of gas) = (miles) / (miles/gallon) / (gallons / tank) tanks
 Volume/429674: In my Math work shop class we are measuring boxes. I am trying to figure out how much water can be held in a box the width is 4 1/2 inches the the length is 7 1/2 and hight is 1 3/4 inches. How much water can this box hold till it over flows?1 solutions Answer 298418 by josmiceli(9669)   on 2011-03-31 16:42:03 (Show Source): You can put this solution on YOUR website!You need to find the volume of the box. If the length, width, and height are measured in inches, The volume is measured in cubic inches The formula is Volume = length x width x height in3 in3
 Travel_Word_Problems/429287: Two cars heading in same direction, 300 ft apart. One behind is traveling 53 mph, one in front is traveling 40 mph. How many seconds until they hit? What if the front one is traveling 10 mph?1 solutions Answer 298218 by josmiceli(9669)   on 2011-03-30 19:27:11 (Show Source): You can put this solution on YOUR website!Let = distance front car has to go Let = time for them to meet equation for 40 mi/hr car (1) equation for 53 mi/hr car (2) Substitute (1) into (2) (2) hrs hrs x min/hr x sec/min They hit in 15.73 sec -------------------------- If the front car goes 10 mi/hr (1) (2) (2) hrs sec They hit in 4.757 sec
 Linear-equations/428938: 353 people attend a local play ata private club. members get tickets for \$2.75, while non - members have to pay \$6.50. If the total gate for the play came to \$1762, how many members and non - members came to the play?1 solutions Answer 298035 by josmiceli(9669)   on 2011-03-29 21:26:50 (Show Source): You can put this solution on YOUR website! = number of members = number of non-members given: (1) (2) (in cents) Multiply both sides of (1) by and subtract (1) from (2) (2) (1) and (1) 142 members and 211 non-members came