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# Recent problems solved by 'richwmiller'

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 Travel_Word_Problems/291068: Jackson is on Spring Break for his school which is Memphis, Tennessee. He is planning on visiting his two brothers and their sister. He will be traveling by air. If he leaves Memphis, Tennessee International airport and stop at Oklahoma City, Oklahoma airport, how long will it for Jackson to arrive if he is traveling at a ground speed of 380km/hr? There in Oklahoma he will visit with his older brother for two hours and get back onto another plan that will take him to El Paso, Texas. In Texas he will land at the Biggs Field airport. He will only visit for an hour with his other brother and back onto a plane to Las Vegas, Nevada to stay with his sister until break is over. The two planes’ ground speed was 310km/hr. How long will the trip take before Jackson will see his sister? 1 solutions Answer 210581 by richwmiller(9135)   on 2010-04-12 07:45:27 (Show Source): You can put this solution on YOUR website! Considering security and plane delays, I would say about a week.
 Probability-and-statistics/291072: How many different selections of 3 cards can be made from 12 face cards?1 solutions Answer 210580 by richwmiller(9135)   on 2010-04-12 07:41:18 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]
 absolute-value/291051: What is the sum of all integer solutions to |x+2|=5 ?1 solutions Answer 210579 by richwmiller(9135)   on 2010-04-12 07:38:42 (Show Source): You can put this solution on YOUR website!-7+3=-4
 Linear-equations/291029: FIND LINEAR FUNCTION SLOPE 1/5 AND Y-INTERCEPT (0,8/7)1 solutions Answer 210578 by richwmiller(9135)   on 2010-04-12 07:23:28 (Show Source): You can put this solution on YOUR website!We are not deaf just blind.
 Linear-equations/291065: What is the y=mx+b form of the following: 1.5x - y = 10 1 solutions Answer 210577 by richwmiller(9135)   on 2010-04-12 07:19:38 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]
 Rate-of-work-word-problems/291044: Q.1 If a:m=5:8 and m:d=7:14 then a:d will be....? Q.2 A pipe fill tank in 5 mins, B fill in 6 mins. Both will fill in mins...?(by working at same time)1 solutions Answer 210576 by richwmiller(9135)   on 2010-04-12 07:18:11 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]
 Miscellaneous_Word_Problems/291049: Ahcène, Nabil and Paul play each other in a tournament. Each game has a winner and a loser. The winner of the tournament is the first to win 10 games and the tournament ends when a winner is found. They play each other in the order: Ahcène vs. Nabil, Ahcène vs. Paul, and Nabil vs. Paul, repeating this order until the tournament ends. What is the smallest possible number of games in the tournament? (A) 10 (B) 13 (C) 14 (D) 15 (E) 20 1 solutions Answer 210575 by richwmiller(9135)   on 2010-04-12 06:59:56 (Show Source): You can put this solution on YOUR website!n,n x n,n,x n,n,x n,n,x n,n (C) 14
 Graphs/291059: Use slope-intercept to write the equation of the line with the given properties. Write each equation in slope-intercept form. passing through 9-4,5) and (2,-6)1 solutions Answer 210574 by richwmiller(9135)   on 2010-04-12 06:54:52 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]
 Miscellaneous_Word_Problems/291052: Mary is going to have a party for 95 guests. Hot dogs are sold in packages of eight and buns are sold in packages of ten. If she purchases the minimum number of packages of each to guarantee at least one hot dog and one bun for each guest, how many more buns than hot dogs does she have to buy?1 solutions Answer 210573 by richwmiller(9135)   on 2010-04-12 06:52:52 (Show Source): You can put this solution on YOUR website!95<=8h at least 12 95<=10b at least 10 She needs at least 2 more packs of hot dogs than buns. Check your problem.
 Exponents/291054: suppose that 3^2x+1 = 12 Which of the following value is (1/81)^x ? a 1/4 b 1/8 c 1/16 d 1/32 e none of these1 solutions Answer 210572 by richwmiller(9135)   on 2010-04-12 06:42:17 (Show Source): You can put this solution on YOUR website!What is the exponent? 2? 2x? 2x+1?
 Percentage-and-ratio-word-problems/291057: in what ratios a 20% methyl alcohol solution be mixed with 50% methyl alcohol so that the resulting solutions contains 40% methyl alcohol? 1 solutions Answer 210571 by richwmiller(9135)   on 2010-04-12 06:39:24 (Show Source): You can put this solution on YOUR website!.2x+.5y=.4(x+y) x=.5y y=2x y/x=2/1 x/y=1/2
 Linear-systems/291056: 1/2x-y=5 x-y=12 we have to solve algebraically 1 solutions Answer 210570 by richwmiller(9135)   on 2010-04-12 06:33:01 (Show Source): You can put this solution on YOUR website!subtract the first from the second
 Graphs/290967: write an equation for the line with slope 1/3 and y - intercept 4 1 solutions Answer 210545 by richwmiller(9135)   on 2010-04-11 23:27:27 (Show Source): You can put this solution on YOUR website!y=x/3+4
 Linear_Equations_And_Systems_Word_Problems/290964: Is (-1,2), (1,2), (-2,4, (2,4) a linear equation. I put no since the domain does not equal one range number1 solutions Answer 210544 by richwmiller(9135)   on 2010-04-11 23:24:16 (Show Source): You can put this solution on YOUR website!Not all linear equations are one to one. y=3 and x=2 are not one to one x=2 is not a function but y=3 is.
 Trigonometry-basics/290946: I would like to know how to solve this If one root of a quadratic equation is 1/2-2i, what is the equation?1 solutions Answer 210543 by richwmiller(9135)   on 2010-04-11 23:12:19 (Show Source): You can put this solution on YOUR website!Hint: square roots and complex roots come in plus and minus pairs.
 Probability-and-statistics/291006: 1. If a null hypothesis is not rejected at the 0.10 level, it may be rejected at the 0.05 level. a. True b. False 1 solutions Answer 210541 by richwmiller(9135)   on 2010-04-11 23:03:14 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]
 Polynomials-and-rational-expressions/290990: How do you solve: (2b-7)^2 is the factorization of a trinomial. What is the trinomial? Thank you!1 solutions Answer 210540 by richwmiller(9135)   on 2010-04-11 23:01:27 (Show Source): You can put this solution on YOUR website!Use FOIL
 expressions/291003: what is the equivalent expression of -(a-75) without parentheses? 1 solutions Answer 210539 by richwmiller(9135)   on 2010-04-11 23:00:18 (Show Source): You can put this solution on YOUR website!remove the - outside and change all signs inside
 Polynomials-and-rational-expressions/290989: How do you factor this trinomial? 12x^2 + 5xy - 3y^2 Thank you!1 solutions Answer 210538 by richwmiller(9135)   on 2010-04-11 22:58:50 (Show Source): You can put this solution on YOUR website!(3x-y) (4x+3y)
 Trigonometry-basics/290975: I am not certain if anyone can help me with this trig problem. I am not sure what is really considered trig basics. Determine the amplitude, period, any vertical translation, and any phase shift of the given graph. y=4sin(x-pi/8). Thanks......1 solutions Answer 210537 by richwmiller(9135)   on 2010-04-11 22:52:21 (Show Source): You can put this solution on YOUR website!You have stumped all 1000 tutors! Wow. None of has even heard of amplitude, let alone period, vertical translation and phase shift. And what is pi? Do you mean apple pie! And did you "sin" over apple "pie"? Who 8 the pie?
 Equations/290958: "solve 4r+2(4-r)=5r+7-3r show all work step by step"1 solutions Answer 210536 by richwmiller(9135)   on 2010-04-11 22:47:50 (Show Source): You can put this solution on YOUR website!So where is your portion of the work step by step?
 Linear_Algebra/290998: help me solve those polynomials x^3+21x^2=15x 1 solutions Answer 210534 by richwmiller(9135)   on 2010-04-11 22:38:24 (Show Source): You can put this solution on YOUR website!Some website rules you won't like: You are limited to one problem per submission. [One problem at a time.] No more than 4 submissions daily. [4 problems a day] No similar problems. [Different type problems only.]