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# Recent problems solved by 'jojo14344'

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 Functions/156201: let (f) represent the number of feet. which algebraic expression represents the number of inches in (f)1 solutions Answer 115402 by jojo14344(1512)   on 2008-09-12 15:44:19 (Show Source): You can put this solution on YOUR website!Let = # of inches Being represents no. of feet. Then --------> no. of inches in feet thank you, Jojo
 Proportions/156410: how could you solve this question: a rock climber burns 60 calories for every 5 minutes of rock climbing. write a proportion on the lines below to determine how many calories a rock climber would burn in 7 minutes. thanks if you answer this but can you try to get it answered by the morning of september 12,2008 thanks1 solutions Answer 115203 by jojo14344(1512)   on 2008-09-11 16:04:53 (Show Source): You can put this solution on YOUR website! , he can burn 12 calories in 1 minute. In 7 minutes let's see: amount he'll burn in 7 minutes Thank you, Jojo
 Travel_Word_Problems/156279: One car travels 60mph and another one travels 45mph. If they start from the same place at the same time and travel in the same direction, after how many hours will the faster car be 50 miles ahead of the slower car?1 solutions Answer 115114 by jojo14344(1512)   on 2008-09-11 00:16:10 (Show Source): You can put this solution on YOUR website!Let -----------------> faster car ---------------------> slower car Remember the situation, that is ahead of at a certain that we're looking for. Putting that into equation, we need to add to to cover the gap of : , cross multiply , divide both side by 15 to solve "time": ---> time=3 hours & 20mins After and , will be 50 miles ahead of . In doubt? Let' see: DISTANCE OF AFTER 3 hours & 20 minutes: DISTANCE OF AFTER 3 hours & 20 minutes: Thank you, Jojo
 Parallelograms/156296: How do you find the area of a parallelogram?1 solutions Answer 115113 by jojo14344(1512)   on 2008-09-10 23:46:12 (Show Source): You can put this solution on YOUR website!Get the that is perpendicular to the and multiplied by the base= _____ sq units In getting the you can resort to Pyth. Theorem since that perpendicular line to the will form a triangle. Thank you, Jojo
 Finance/156314: 9x-9=51 solutions Answer 115112 by jojo14344(1512)   on 2008-09-10 23:39:03 (Show Source): You can put this solution on YOUR website! Thank you, Jojo
 Exponents/156317: 6(6)divided by (2 times 9)1 solutions Answer 115111 by jojo14344(1512)   on 2008-09-10 23:35:55 (Show Source): You can put this solution on YOUR website! -------> Thank you, Jojo
 Expressions-with-variables/156226: the minimum wage set in 1997 was \$5.15 per hour.evaluate the expression 40h where h=\$5.15 to find a worker's weekly salary.1 solutions Answer 115093 by jojo14344(1512)   on 2008-09-10 20:32:12 (Show Source): You can put this solution on YOUR website!If you work per week at a wage of \$5.15/hour: \$206/week Thank you, Jojo
 Unit_Conversion_Word_Problems/156256: how many cubed centimeters are in 1.00 mililiters?1 solutions Answer 115090 by jojo14344(1512)   on 2008-09-10 20:26:35 (Show Source): You can put this solution on YOUR website!Remember: Thank you, Jojo
 Polynomials-and-rational-expressions/156215: (20+12)/(4+4)1 solutions Answer 115081 by jojo14344(1512)   on 2008-09-10 17:43:56 (Show Source): You can put this solution on YOUR website!(20+12)/(4+4) = = Thank you, Jojo
 Numbers_Word_Problems/156070: Torry took 6 tests, she had an average 97. First 5 tests had the same score. The last test had 12 points less. What was her last test score?1 solutions Answer 114938 by jojo14344(1512)   on 2008-09-10 07:27:03 (Show Source): You can put this solution on YOUR website!If Torry has an of 97 for , so his total will be Now, let the score for each test be . SO, . And the condition that the last Test, is 12 less, so the score is . Therefore adding the 6 Tests' score will total to . To show: ----> --------------------------> SCORE for the 1st 5 tests ---------------------> SCORE on the last test In doubt? Let's add the total tests & the should equal to : Thank you, Jojo
 Mixture_Word_Problems/155935: If each side of a square is increased by 5 meters, the area becomes 121 square meters. Find the length of a side of the original square.1 solutions Answer 114869 by jojo14344(1512)   on 2008-09-09 18:05:01 (Show Source): You can put this solution on YOUR website!We based the measurement on the NEW dimensions: -----------> each side increased by 5 meters ---------> NEW Area So, Factor (perfect square): 2values: ----------> DON'T USE ---------------------> USE, side of ORIGINAL SQUARE In doubt? Use the side for the new AREA. Thank you, Jojo
 Linear-systems/155887: Adult tickets for a play cost \$25 each and children's tickets cost \$15each. The total receipts were \$7200 and the total attendance was 400. How many adults and how many children attended?1 solutions Answer 114841 by jojo14344(1512)   on 2008-09-09 15:16:32 (Show Source): You can put this solution on YOUR website!Remember: Total attendance =400, so ----------------------> eqn 1 Total receipts = \$7200.00: --------------------------------------> eqn 2 In eqn 1 we get, --> substitute in eqn 2: -----> --------------------> no. of Adults attended For Children, go back eqn 1: ------------> no. of Children attended In doubt? go back eqn 2: Thank you, Jojo
 Radicals/155714: Reduce the given expression to lowest terms -v - 1/ -7 ??? is it v + 1/ 7 1 solutions Answer 114773 by jojo14344(1512)   on 2008-09-08 23:59:16 (Show Source): You can put this solution on YOUR website!-v - 1/ -7 Let's isolate = right? so, ----------> Thank you, Jojo
 Angles/155738: An angle measures 12 degress less than three times its supplement. Find the measures of the angle.1 solutions Answer 114772 by jojo14344(1512)   on 2008-09-08 23:50:25 (Show Source): You can put this solution on YOUR website! ---------------> working eqn is a supplement of where ----> , 3 times its supplement less 12deg. So go back wworking eqn: ----> go back working eqn to get ; In doubt? go back to the : Thank you, Jojo
 Human-and-algebraic-language/155788: This question is from textbook You are making a rectangular rug. You want the rug to be twice as long as it is wide. Let w represent the width (in feet) of the rug. a.write an expression in terms of w for the perimeter of the rug.b.write an expression in terms of w for the area of the rug.1 solutions Answer 114770 by jojo14344(1512)   on 2008-09-08 23:10:24 (Show Source): You can put this solution on YOUR website!Remember: , twice as Long as the Width So, -----------------> Also, ---------------> Thank you, Jojo
 Miscellaneous_Word_Problems/155811: This question is from textbook elementary and intermediate algebra Cansomeone help me with this? #44. Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food? Thank you1 solutions Answer 114769 by jojo14344(1512)   on 2008-09-08 23:05:25 (Show Source): You can put this solution on YOUR website!If or 80% of doctors prefer fast food, then at convention of 445 doctors, 80% of which prefer that OR, . Thank you, Jojo
 Parallelograms/155799: Find the length of one base of a trapezoid if the area of the trapezoid is 46cm squared, the height is 4 cm and the length of the other base is 6cm.1 solutions Answer 114768 by jojo14344(1512)   on 2008-09-08 23:01:43 (Show Source): You can put this solution on YOUR website! Given: , , , & Substitution: ----> ------------------------------> length of the other base Thank you, Jojo
 Signed-numbers/155809: Find the error, then correct it. After driving 50 miles an hour for n hours the distance traveled was 50 n miles.1 solutions Answer 114767 by jojo14344(1512)   on 2008-09-08 22:50:17 (Show Source): You can put this solution on YOUR website!remember: Let' see, given: , , So, , cross multiply ---------> the distance is CORRECT Thank you, Jojo
 Equations/155803: 4X+3=-3+2X+14-31 solutions Answer 114765 by jojo14344(1512)   on 2008-09-08 22:43:59 (Show Source): You can put this solution on YOUR website! , combine similar terms , thank you, Jojo
 Mixture_Word_Problems/155666: How many liters of a 10% alcohol solution must be mixed with 70 liters of a 90% solution to get a 30% solution? Thanks in advance for your help!1 solutions Answer 114702 by jojo14344(1512)   on 2008-09-08 15:26:50 (Show Source): You can put this solution on YOUR website!There are 2 unknowns in the problem: VOLUME OF ALCOHOL ---> ? VOLUME OF OUTPUT SOLUTION---> ? We'll go to the 1st condition: 10% of Alcohol mixed with 90% of 70L of initial solution to produce 30% of . To show: ----------------------> eqn 1 Now, when we add the Volume of and , we get the volume of . To show: --------------------------------> eqn 2 Continuing, ---------------------> eqn 3 Substitute eqn 3 in eqn 1: -----> -------------------> volume of Alcohol : For Volume of , go back eqn 2: -------------------> volume of output solution In doubt? go back eqn 1: thank you Jojo
 Linear-equations/155665: This question is from textbook thinking mathematically A bookshelf is to be constructed. the length is to be 3 times the height. If 60 feet of lumbar is available for the entire unit, find the length and height of the book case.1 solutions Answer 114690 by jojo14344(1512)   on 2008-09-08 14:58:53 (Show Source): You can put this solution on YOUR website!The bookshelf is rectangular in shape with ---> condition 1, 3 times the height Take note Total , total feet of lumber available. So, ------------------------> working eqn but, and , then: -----> And, In doubt? Go back working eqn, remember Thank you, Jojo
 Reduction-of-unit-multipliers/155667: 5.7 unks=6.7 tats 47.3 unks=___________tats1 solutions Answer 114688 by jojo14344(1512)   on 2008-09-08 14:40:49 (Show Source): You can put this solution on YOUR website!5.7 unks=6.7 tats 47.3 unks=___________tats Simply, Thank you, Jojo
 Polynomials-and-rational-expressions/155655: Leading men. Bob Hope was born 2 years after Clark Gable and 2 years before Henry Fonda. In 1951, after all three of them had their birthdays, the sum of their ages was 144. In what years were they born?1 solutions Answer 114684 by jojo14344(1512)   on 2008-09-08 13:27:52 (Show Source): You can put this solution on YOUR website!Of course everyone is welcome to try this problem but see what I got: Remember: ,, : We all know that to know your , you subtract the base year (in this case it's ) to the year you were born: Let ----> the year HF was born so, ---> year CG was born, 2 years before HF -----> year BH was born, 2 years after CG . So we subtract the year each person born from 1951 so we can know their ages that sum up to 144 years. Let's see: ---------------> WORKING EQN ----> ===> Y=1903 & 8 months (August)---> the date & year HF born ===> 1901 & 8 months (August) ----> the date & year CG was born ===> 1903 & 8 months (August) ---> the date & year BH was born. In doubt? See above, let's see their ages: HF: ===> 47 years & 4months CG: ===> 49 years & 4months BH: ===> 47 years & 4months Going back to the condition, the SUM of their ages in 1951 is 144: 47yrs & 4months + 49yrs & 4months + 47yrs & 4months =144 years 143 years & 12 months =144 years 144 years = 144 years thank you, Jojo
 Equations/155641: the length of arectangle is 3cm less than four times its width.if the perimeter is 38cm,what is the area of the rectangle?1 solutions Answer 114652 by jojo14344(1512)   on 2008-09-08 07:38:50 (Show Source): You can put this solution on YOUR website!Given: So, -----> -----------------------------------> Width ------------------> Length Thank you, Jojo
 Word_Problems_With_Coins/155633: 600 quarters equals how many dimes?1 solutions Answer 114651 by jojo14344(1512)   on 2008-09-08 07:10:38 (Show Source): You can put this solution on YOUR website!Remember: --------> So, Thank you, Jojo
 Square-cubic-other-roots/155634: square root of 641 solutions Answer 114650 by jojo14344(1512)   on 2008-09-08 07:06:49 (Show Source): You can put this solution on YOUR website!=8 Thank you, Jojo
 Exponential-and-logarithmic-functions/155640: Approximate the number using a calculator. Round your answer to three decimal places. e^3.8 a. 37.672 b. 45.001 c. 44.701 d. 10.329 1 solutions Answer 114649 by jojo14344(1512)   on 2008-09-08 07:04:56 (Show Source): You can put this solution on YOUR website!You can easily punch in tothe calculator and get: ANSWER: C Thank you, Jojo
 Average/155621: How do I find the average of four numbers whose sum is 108?1 solutions Answer 114646 by jojo14344(1512)   on 2008-09-07 22:59:03 (Show Source): You can put this solution on YOUR website!Average of SUM of Four numbers : Thank you, Jojo
 Finance/155586: can you show me how to solve this problem -5(7-4)2 divideby 3-121 solutions Answer 114645 by jojo14344(1512)   on 2008-09-07 22:55:39 (Show Source): You can put this solution on YOUR website!-5(7-4)2 divideby 3-12 I assumed it's like this: Continuing, Remember in solving group of equations ----> Parentheses, Exponent, Multiplication, Division,Addition, Subtraction. ----> Thank you, Jojo
 Geometry_proofs/155452: GIVEN: AB=BC,AD=DE,BC=AD PROVE: DE=AB1 solutions Answer 114639 by jojo14344(1512)   on 2008-09-07 22:25:49 (Show Source): You can put this solution on YOUR website!Let's start with , but , so: right? Also, , therefore -----------> final condition Thank you, Jojo
 Quadratic_Equations/155598: The width of a rectangle is 2 ft less than the length. the area is 8 ft^2. Find the length and the width. PLEASE HELP!!!1 solutions Answer 114634 by jojo14344(1512)   on 2008-09-07 22:13:32 (Show Source): You can put this solution on YOUR website!Remember: For rectangle, ----------------------------> working eqn Given: Substitute, ------> BY QUADRATIC: , , & ---> 2 values , USED ----------------> LENGTH -----------------> WIDTH In doubt? Go back working eqn: Thank you, Jojo
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