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# Recent problems solved by 'jb007mi6'

jb007mi6 answered: 53 problems
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 Rectangles/28337: The perimeter of a rectangle is to be no greater than 300 in., and the length must be 125 in. Write an appropriate inequality, then find the maximum width of the rectangle.1 solutions Answer 16733 by jb007mi6(53)   on 2006-03-12 15:47:47 (Show Source): You can put this solution on YOUR website!so your width has to be 300-250 over 2 so 25
 Graphs/29960: May you please help me with this question, it says to plot and label the point corresponding to each given ordered pair; then describe its location. The pairs are: (4,3) (3,4) (-2,5) (-5,3) (-2,-1) (-6,-3) (1,-3) (,-3) (0,4) (4,0) (0,-2) If you can solve this problem, I would really appreciate it. Thanks alot. 1 solutions Answer 16729 by jb007mi6(53)   on 2006-03-12 15:28:21 (Show Source): You can put this solution on YOUR website!whatever the "x" coordinate (the first number in the ordered pair) is, is however much left or right you go from the origin. whatever the "y" coordinate (the second number in the ordered pair) is, is however much up or down you gor from the origin.
 Age_Word_Problems/29968: ok please help me, aead is 5 years older than Jen. Four times Jen's age increased by 3 years equals three times Ed's age diminished by 2 years. Find each person's age. ed? Jen? 1 solutions Answer 16728 by jb007mi6(53)   on 2006-03-12 15:23:27 (Show Source): You can put this solution on YOUR website!Ed-5=Jen 4(Jen)+3=3(Ed)-2 use "E" and "J" from now on... so if J=E-5, then you can plug "e-5" everywhere you see a J in the other equation 4(e-5)=3(e)-2 4e-20=3e-2 e=18 Ed is 18 yrs old Jen is 13 yrs old
 Travel_Word_Problems/29961: Elvin drove halfway from ashton to dover at 40 mi/h abd the rest of the way at 60 mi/h. What was his average speed for the whole trip? (Hint: let the distance for the whole trip be, say, 100 mi.)1 solutions Answer 16726 by jb007mi6(53)   on 2006-03-12 15:10:41 (Show Source): You can put this solution on YOUR website!average...40+60 ----- = 50mph 2
 percentage/29962: how do you change percents into money?1 solutions Answer 16724 by jb007mi6(53)   on 2006-03-12 14:59:11 (Show Source): You can put this solution on YOUR website!multiply by 100
 Age_Word_Problems/29965: ok please help this one is hard, The difference in the age of two girls is 1 year. The sum of their ages is 27. What are their ages?1 solutions Answer 16723 by jb007mi6(53)   on 2006-03-12 14:56:09 (Show Source): You can put this solution on YOUR website!0K...one girl is x and the other is y you know the following {x-y=1 {x+y=27 so add both equations and you get 2x=28 so x=14 14-1=y y=13 the two girls are 13 and 14
 Polynomials-and-rational-expressions/29905: Add. Express your result in simplest form. 4/xy + 6/xy Thank you 1 solutions Answer 16673 by jb007mi6(53)   on 2006-03-11 22:48:08 (Show Source): You can put this solution on YOUR website!10/xy
 Quadratic_Equations/29892: What are examples of quadratic equations or applications with imaginary numbers? 1 solutions Answer 16667 by jb007mi6(53)   on 2006-03-11 22:14:37 (Show Source): You can put this solution on YOUR website!i^2+6i+9 ????????
 logarithm/29897: please help, I know very little about using the calculator! log b a= loga/logb using this formula, find log, 10001 solutions Answer 16665 by jb007mi6(53)   on 2006-03-11 22:08:43 (Show Source): You can put this solution on YOUR website!well, you don't really need the formula you can just press 1000 and then log in a calculator. (logs on calculators are base ten so don't worry about that) you should end up with three
 Systems-of-equations/29898: r/gy=x Solve for y1 solutions Answer 16664 by jb007mi6(53)   on 2006-03-11 22:02:33 (Show Source): You can put this solution on YOUR website!multiply both sides by gy to clear the fraction r=gyx divide both sides by gx to isolate y y=r/(gx)
 Linear_Algebra/29868: Given f(x) =x^3 and g (x) = 3+6x^2, find (g o f) (x). Here are the possible answers: a. none of these b. 3+6x^2/x^3 c. 3+6x^6 d. 3+6x^2 Thanks for helping1 solutions Answer 16636 by jb007mi6(53)   on 2006-03-11 09:52:32 (Show Source): You can put this solution on YOUR website!that would be "C" because you take "x^3" and plug it in whereever you see an "X" in g. 3+6(x^3)^2 the exponents multiply 3+6x^6
 Linear_Algebra/29873: Question: Given log[10]3=S and log[10]11=T, find log[10]33 Here are the possible answers: S+T ST 10^st 10^s+t1 solutions Answer 16635 by jb007mi6(53)   on 2006-03-11 09:49:57 (Show Source): You can put this solution on YOUR website!that would be S+T
 Linear_Algebra/29872: Solve: log[8](3x+2)=4 Thanks1 solutions Answer 16634 by jb007mi6(53)   on 2006-03-11 09:48:15 (Show Source): You can put this solution on YOUR website!8^4 = 3x+2 32=3x+2 3x=30 x=10
 Travel_Word_Problems/28290: an aircraft travels 1500.2 miles in 1/5 tank. ( a full tank is 88 gallons) how far can they it travel with 120 gallons?1 solutions Answer 16633 by jb007mi6(53)   on 2006-03-11 09:43:55 (Show Source): You can put this solution on YOUR website!set up a proportion with a half tank 44 gal, the aircraft can travel 1500.2 miles in a full tank 88 gal, the aircraft can travel 1500.2 * 2 or 3000.4 miles so with 120 gal, the plane can travel...the following 3000.4 miles ? miles ------------ = ---------- 88 gallons 120 gal cross multiply 88?=360048 divide by 88 and you get aproximately 4091 miles. If this is a trick question, then the tank can not really hold 120 gallons of fuel.
 Miscellaneous_Word_Problems/29713: A shoemaker died, leaving behind 17 pairs of men's shoes and boots. In his last will and testament he disposed of them as follows: 1/2 of the collection to his youngest, hardworking, son; 1/3 to the middle son; and 1/9 to "Lazybones", the eldest son. Understanding that it was not possible to divide the 17 pairs into halves, thirds, and ninths, the exasperated executor of the will tossed in his own footwear, making it a total of eighteen pairs, which he divided as follows: 1/2, or 9 pairs, to the youngest son; 1/3, or 6 pairs, to the middle son; and 1/9, or 2 pairs, to the eldest son. Upon realizing that adding up 9, 6, and 2 made 17, the executor elatedly retrieved his own pair of shoes and closed the estate. Question: What's the mistake in the shoemaker's problem?1 solutions Answer 16574 by jb007mi6(53)   on 2006-03-10 19:10:20 (Show Source): You can put this solution on YOUR website!...not sure there is one...i went over it several times...can't get anything
 Inequalities/29844: Solve the inequality -3<5-2x/5<9 thanks1 solutions Answer 16573 by jb007mi6(53)   on 2006-03-10 19:07:44 (Show Source): You can put this solution on YOUR website!multiply everything by "5" to clear the fraction -15<5-2x<45 subtract everything by 5 -20<-2x<40 divide by 2 -10<-x<20 switch the signs to get x 10>x>-20 change it around so it makes sense -20
 Equations/29845: hi thanks for the last answer,heres another one for you: 7y + 1 = 9 + 3y... I think y=2 am I right or way off the mark? your help is always appreciated! :)1 solutions Answer 16572 by jb007mi6(53)   on 2006-03-10 19:04:03 (Show Source): You can put this solution on YOUR website!so you subtract 3y and 1 from both sides of the equation 4y=8 divide both sides by 4 y=2 you were right on!!!
 Expressions-with-variables/28386: {3x+y=5 {2x-y=10 Can you please show all work.1 solutions Answer 16570 by jb007mi6(53)   on 2006-03-10 18:57:29 (Show Source): You can put this solution on YOUR website!it helps to label your equations. lets say (3x+y=5 is "1" and the other is "2" solve each equation for y "1" ----- y=-3x+5 "2" ----- y=2x-10 since both equations both equal "y" you can set them equal to eachother -3x+5=2x-10 solve this equation for "X" -5x=-15 x=3 put the value of "3" into the first (or second) equation in "1" 3(3)+y=5 9+y=5 y=-4 check your answers in the other equation as well
 Equations/28379: I would appreciate help in the following problem: w = P +1 over 2, for 1. Solve. Thanking you in advance.1 solutions Answer 16569 by jb007mi6(53)   on 2006-03-10 18:52:13 (Show Source): You can put this solution on YOUR website!w=(P+1)/2 multiply both sides by 2 to clear fraction 2w=P+1 subtract P from both sides 2w-P=1 turn around for answer 1=2W-P
 Miscellaneous_Word_Problems/28380: Please help. y = 2a - ab + 3, for a. Appreciate any help. Thanks.1 solutions Answer 16568 by jb007mi6(53)   on 2006-03-10 18:49:31 (Show Source): You can put this solution on YOUR website!so you have to isolate the "a" switch the equation around for mathematical purposes 2a-ab+3=y subtract both sides by 3 2a-ab+3-3=y-3 this is 2a-ab=y-3 factor out an "a" a(2-b)=y-3 divide both sides by "2-b" to isolate the "a" a=(y-3)/(2-b)
 Numbers_Word_Problems/28381: two consecutive even integers whose sum is 126 three consecutive odd intergers whose sum is 117 two consecutive even integers whose sum is 217 three consecutive even integers whose sum is 3961 solutions Answer 16567 by jb007mi6(53)   on 2006-03-10 18:44:59 (Show Source): You can put this solution on YOUR website!problem #1 one integer is "x" and the other is "x+2" because the two integers are consecutive and even. x+x+2=126 subtract 2 from both sides x+x=124 add like terms 2x=124 divide both sides by two x=62 so one integer is 62 and the other is 64 you can do the others similarly
 Triangles/27225: Fidn the measures of two complementary angles, angle A and angle B, if the measure of angle A = 7x+4 and the measure of angle B = 4x+9. Thanks!1 solutions Answer 14801 by jb007mi6(53)   on 2006-02-12 15:39:54 (Show Source): You can put this solution on YOUR website!since the angles are complimentary, that means the two angles are = 90 degrees. so (7x+4)+(4x+9)=90 this is 11x+13=90 11x=77 x=7 plug this into A and B and get 7(7)+4=49+4=53 angle A is 53 4(7)+9=28+9=37 angle B is 27 *53+27=90...so you know it's right
 Polynomials-and-rational-expressions/25795: Please help me solve this equation: p^2+6p=01 solutions Answer 13881 by jb007mi6(53)   on 2006-01-29 12:40:40 (Show Source): You can put this solution on YOUR website!ok ... so you have p common in both terms on the left hand side of the equation this means you can factor the p like so p(p+6)=0 if you expand the LHS, then you will get the original equation. now set each factor equal to 0 p=0 and p+6=0 thus, p=0 and p=-6 hope this helps...
 Angles/15231: What is the measure of each interior angle of a regular pentagon?1 solutions Answer 7561 by jb007mi6(53)   on 2005-10-13 19:18:52 (Show Source): You can put this solution on YOUR website!in a regular pentagon, the sides and angles are equal since there are 5 angles and the whole pentagon has 3 triangles and one triangle is 180 degrees, there are 540 degrees in a pentagon if X is the # of degrees in one angle of a regular pentagon, you have this equation 5X=540 so each angle is 72 degrees
 Divisibility_and_Prime_Numbers/15232: what is the prime factorization in expanded form of 271 solutions Answer 7560 by jb007mi6(53)   on 2005-10-13 19:16:13 (Show Source): You can put this solution on YOUR website!so since 27 is equal to nine times three 27=9*3 and 9 is equal to 3*3 so substitute 27=3*3*3 so that's the prime factorization or you can write 3^3 or 3 cubed
 Signed-numbers/15112: Is this true? (-) + (-) = -1 solutions Answer 7516 by jb007mi6(53)   on 2005-10-12 23:39:03 (Show Source): You can put this solution on YOUR website!it basically depends on the nmbers if the first number is lower (in value) than the second number, it is true if the second number is lower than it is false
 Expressions-with-variables/15114: I need help with four problems: I need to write a variable expression for each word phrase: Problem 1: five less than y Problem 2:the product of a number and 78 Problem 3:the quotient of a number and 9 Problem 4:ten increased by a number1 solutions Answer 7515 by jb007mi6(53)   on 2005-10-12 23:36:59 (Show Source): You can put this solution on YOUR website!1. if y is 10 than five less than 10 is 10-5 so 5 less than y is y-5 2. let's say your number is x and product means to multiply so it is x * 78 or 78x 3.the quotient (division) of a number (x) and 9 x / 9 4. 10 increased ( addition) by a number (x) 10+x
 expressions/15115: -10x+3 This question is negative ten plus three over ______ five. How can simplify this expression? 51 solutions Answer 7514 by jb007mi6(53)   on 2005-10-12 23:29:49 (Show Source): You can put this solution on YOUR website!you can make it like so -10x/5+3/5 divide the first part -2x+3/5 that's how you simplify
 real-numbers/15116: 4(-3x-5))-(10+4x) Simplify? Can someone help me with this? 1 solutions Answer 7513 by jb007mi6(53)   on 2005-10-12 23:15:07 (Show Source): You can put this solution on YOUR website!it's easier if you break it down in parts so the first part 4(-3x+5) distribute the 4 and get -12x+20 the next part is -(10+4x) if you distribut the negative, you get -10-4x so then you have -12x+20-10-4x combine like terms -16x+10
 Average/15117: How do you do this problem? 7g+7=4g-21 solutions Answer 7511 by jb007mi6(53)   on 2005-10-12 23:01:06 (Show Source): You can put this solution on YOUR website!so you subtract 4g from both sides 7g+7-4g=4g-2-4g this boils down to 3g-7=-2 now add 7 to both sides 3g-7+7=-2+7 this boils down to 3g=5 divide both sides by 3 3g/3=5/3 this boils down to g=5/3 this
 Human-and-algebraic-language/14962: The sum of 7 times a number and 7 divided by 2 is 14?1 solutions Answer 7434 by jb007mi6(53)   on 2005-10-11 23:41:05 (Show Source): You can put this solution on YOUR website!lets say your number is x so the sum of 7times a number and seven/2=14 so i think that it's 7 times a