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Recent problems solved by 'richwmiller'

richwmiller answered: 9124 problems
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Money_Word_Problems/256842: I WANT TO HAVE $65000 COLLEGE FUND IN 10 YEARS. HOW MUCH WILL I HAVE TO DEPOSIT NOW ASSUMING I HAVE NO MONEY IN THE BANK AND THE APR OF 6% COMPOUNDED DAILY? 1 solutions Answer 188884 by richwmiller(9135)   on 2010-01-14 10:33:15 (Show Source): You can put this solution on YOUR website! Stop shouting! All caps is shouting on the internet and it is hard to read.

Travel_Word_Problems/256814: In racing over a given distance at uniform speed Bryan can beat Sean by 20 meters, Sean can beat Stephen by 10 meters, and Bryan can beat Stephen by 28 meters. How many meters is the distance over which they are racing? 1 solutions Answer 188883 by richwmiller(9135)   on 2010-01-14 10:31:26 (Show Source): You can put this solution on YOUR website! d=distance rt=d b=sean+20 sean=st+10 sean-st=10 b=st+28 sean+20=st+28 sean-st=8 sean-st=10 Something is wrong. 8 cannot equal 10

absolute-value/256820: why are some algebra and geometry questions solved with a calculater and some are not? 1 solutions Answer 188878 by richwmiller(9135)   on 2010-01-14 10:15:09 (Show Source): You can put this solution on YOUR website! Never used a calculater in my life! Calculators many times! Some calculators can do more than others.

Angles/256841: the supplement of an angle measures 25 degrees more than twice its complement. what is the measure of the angle? 1 solutions Answer 188876 by richwmiller(9135)   on 2010-01-14 10:13:03 (Show Source): You can put this solution on YOUR website! a+s=180 a+c=90 s=25+2c

Radicals/256840: Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. sqrt 45a^7b times sqrt27a^8b^6 Any help would be appreciated. 1 solutions Answer 188874 by richwmiller(9135)   on 2010-01-14 10:11:53 (Show Source): You can put this solution on YOUR website! what is under sqrt ? just the 45 or all of it just the 27 or all of it? The response was everything.

Linear-systems/256838: what are the x- and y-intercepts of the line with equation 4x+5y+40? 1 solutions Answer 188873 by richwmiller(9135)   on 2010-01-14 10:09:23 (Show Source): You can put this solution on YOUR website! that is not an equation. Do you see an equal sign? Nothing is equated. 4x+5y+40=0 is an equation. See the equal sign I equated one side with the other. enter 0 for x and find y (y intercept) enter 0 for y and find x (x intercept)

real-numbers/256831: state the property of real number being used in 2x(3+y)=(3+y)2x 1 solutions Answer 188871 by richwmiller(9135)   on 2010-01-14 10:04:18 (Show Source): You can put this solution on YOUR website! distributive, commutative and associative properties

Graphs/256837: graph the equation: y = -3/4x + 3 1 solutions Answer 188870 by richwmiller(9135)   on 2010-01-14 10:03:31 (Show Source): You can put this solution on YOUR website! find y when x=0 find x when y=0 and plot those two points and connect as a straight line

Rate-of-work-word-problems/256825: The formula relating the volume, V, of a baloon and its radius,r, as it is being inflated is: V(r)=4/3 pi r^3,where r is the radius in cm. a) Determine the average rate of change in volume between r=2 and r=10cm. b) Determine the average rate of change in volume between r=8 and r=10cm. c) Determine the average rate of change in volume between r=9.99 and r=10 d) Calculate the value of 4 pi r ^2 for r=10. What do you notice? Please help me :) Thanks. 1 solutions Answer 188869 by richwmiller(9135)   on 2010-01-14 10:02:05 (Show Source): You can put this solution on YOUR website! reminder : do not submit similar problems. And put them in the right category This problem did not belong in mixtures. We ask very little of you.

real-numbers/256829: I need to simplify this equation. x-{x-1-[x-2-(x-3-{x-4-[x-5-(x-6)]})]} reduces to x-3 start as far in as possible with x-5-(x-6) which becomes x-x-5+6=1 then move out to the next group x-4-(our result 1) 1 solutions Answer 188868 by richwmiller(9135)   on 2010-01-14 09:59:20 (Show Source): You can put this solution on YOUR website!

Graphs/256833: Given the function y = -3/4 x - 1, which set of numbers completes the table? INPUT OUTPUT 0 -1 4 8 12 1 solutions Answer 188867 by richwmiller(9135)   on 2010-01-14 09:54:50 (Show Source): You can put this solution on YOUR website! just plug in the input (as x) and work out the output (as y) so 0 was in put as x and y=-1

Linear-equations/256836: Graph the equation and identify the y-intercept. y + x= -5 1 solutions Answer 188866 by richwmiller(9135)   on 2010-01-14 09:52:55 (Show Source): You can put this solution on YOUR website! reminder : Do not submit similar problems

Angles/256832: How do I find the measure of an angle if its measure is 6 degrees less than 5 times the measure of its complement? 1 solutions Answer 188865 by richwmiller(9135)   on 2010-01-14 09:51:40 (Show Source): You can put this solution on YOUR website! a+c=90 a=-6+5c

Number-Line/256834: A group of 24 dancers march in front of a band at Octoberfest. On your SMTW paper draw ALL the arrays to show how these marchers can be arranged. How many possibilities are there? 1 solutions Answer 188864 by richwmiller(9135)   on 2010-01-14 09:50:07 (Show Source): You can put this solution on YOUR website! That assignment is insane! Ok,give the number of arrangements but to draw each one is ridiculous. They can be arranged in groups of 23 and 1, 22 and 2, etc each group of 4 with 6 dancer sin each can be arranged in many different ways. Whoever thought of this question is insane. 6 people can be arranged in 6! ways alone. and different shapes to boot stars circles squares rectangles trapezoids

Radicals/256828: how do you simplify the square root of 1184 1 solutions Answer 188861 by richwmiller(9135)   on 2010-01-14 09:43:17 (Show Source): You can put this solution on YOUR website! break it up into its prime factors (lowest factors possible) 1184 of course is divisible by 2 but is divisible 5 times by two and once by 37 2^5x37 1184/2=592 2^1 =2 592/2=296 2^2 =4 296/2=148 2^3 =8 148/2=74 2^4 =16 74/2-37 2^5 =32 37 has no factors break up the 2's into pairs 2*2=2^2 we can break it into 2^4 and get the square root =2^2=4 so we get sqrt(1184)=4sqrt(2*37)=

real-numbers/256826: Show Work please....Totally confused Question: Of a possible quotients of the numbers 10, -1/2, -5, and 1/5, which two produce the largest quotient and which two produce the lowest quotient? 1 solutions Answer 188858 by richwmiller(9135)   on 2010-01-14 09:30:13 (Show Source): You can put this solution on YOUR website! 10 divided by 1/5 is the same as multiplying by 5 so the quotient is 50 Lowest would be -5 divided by 1/5 with -25 as the quotient. 10 divided by -1/2 is the same as multiplying by -2 so the quotient is -20. Two things to remember are that negative is lower than plus (positive) and that dividing by a fraction is the same as multiplying by its reciprocal.

Graphs/256823: solve the equation. justify each step. -8x+7=-33 name the property and operation you used to solve each step of the equation 1 solutions Answer 188855 by richwmiller(9135)   on 2010-01-14 09:17:33 (Show Source): You can put this solution on YOUR website! You ask a lot for such a simple equation. subtract 7 from both sides ==subtraction from both sides -8x=-26 divide both sides by -8 ==division on both sides x=-26/-8 x=3 2/8=3 1/4=3.25 reduce fractions convert to decimals say goodbye say goodbye

Rate-of-work-word-problems/256683: Terry spent 3/8 of her monthly salary on rent, 1/3 of her monthly salary on food. If she has $294 left, what is her monthly salary? 1 solutions Answer 188804 by richwmiller(9135)   on 2010-01-13 22:34:33 (Show Source): You can put this solution on YOUR website! x-3x/8-x/3=294 x=1008 monthly salary

Linear-equations/256716: can you help me find the slope passing through the points (1,-1),(1,3) 1 solutions Answer 188801 by richwmiller(9135)   on 2010-01-13 22:31:11 (Show Source): You can put this solution on YOUR website! Yes, I can. Will I? I haven't decided. 3-(-1)/(1-1)=m This is x=1 has its slope is undefined/undecided. It is a vertical line. [If the numerator were 0 then it would be a slope of 0. ] Notice that x is 1 in both points so there is no change and thus the denominator rise/run=0 which is undefined.

Travel_Word_Problems/256742: How much time is saved by driving 15 miles at 75 mph instead of 60 mph? 1 solutions Answer 188800 by richwmiller(9135)   on 2010-01-13 22:06:13 (Show Source): You can put this solution on YOUR website! That depends on if you get stopped by the cops or get in an accident doesn't it? rt=d t=d/r t=15/75=1/5=12 minutes t=15/60=1/4=15 minutes 3 minutes dufference. Is it worth it?

Geometry_Word_Problems/256737: Going into the final exam which will count as two test, amelia has test scores of 77 86 74 61 and 92. What score does amelia need on the final to have an average of 80? 1 solutions Answer 188798 by richwmiller(9135)   on 2010-01-13 22:02:20 (Show Source): You can put this solution on YOUR website! (77+86+74+61+92+2x)/7=80 x=85 PS Amelia had a 78 average going into the final. Sorry but she went from a 61 to a 92. Right!

Money_Word_Problems/256738: Shaylee and jon have 20 coins they would like to give to their Algebra teacher. If they are all quarters and nickels and have a value of $2.60 how many of each coin do they have. 1 solutions Answer 188797 by richwmiller(9135)   on 2010-01-13 21:57:01 (Show Source): You can put this solution on YOUR website! No bribes for the Algebra teachers. Or the bribe has to be larger than that. q+n=20 25q+5n=260 n=12 q=8

Finance/256724: Write the word or phrase that best completes each statement or answers the following questions. Identify the misuse or misrepresentation of statistics. "7 out of 10 dentists recommend Brand X toothpaste". This finding is based on the results of a survey of 10 randomly selected dentists. What is wrong with this survey? 1 solutions Answer 188795 by richwmiller(9135)   on 2010-01-13 21:54:21 (Show Source): You can put this solution on YOUR website! small sample.

Travel_Word_Problems/256734: a car drives 1,200 feet down a road in 24 seconds.how many miles per hour is the car traveling? 1 solutions Answer 188794 by richwmiller(9135)   on 2010-01-13 21:52:35 (Show Source): You can put this solution on YOUR website! (1200/5280)*(24/60*60)

Probability-and-statistics/256728: Using the your state’s (NC) current unemployment rate, what is the probability that an individual living in your state will be able to find a new job after being laid off? 1 solutions Answer 188792 by richwmiller(9135)   on 2010-01-13 21:44:30 (Show Source): You can put this solution on YOUR website! Depends on what you are willing to do or not do. Do you want to actually earn money, then the chances are slim to none.

Finance/256725: Write the word or phrase that best completes each statement or answers the following questions. Identify the misuse or misrepresentation of statistics. According to a survey, jazz music is the most popular music. 1 solutions Answer 188791 by richwmiller(9135)   on 2010-01-13 21:42:33 (Show Source): You can put this solution on YOUR website! Unbelievable!

Rectangles/256705: How Can I Simpify The Area Of A Rectangle 1 solutions Answer 188790 by richwmiller(9135)   on 2010-01-13 21:41:16 (Show Source): You can put this solution on YOUR website! Fill it with gelatin. Take it through a car wash. Take it to school for no child left behind. Introduce it to George W. Bush. How about an example of your problem?

Polynomials-and-rational-expressions/255327: how do you factor polynomials? 1 solutions Answer 188789 by richwmiller(9135)   on 2010-01-13 21:29:52 (Show Source): You can put this solution on YOUR website! Answers: A) Carefully B) With a polynomial factor calculator C) How about an example of what you want?

Linear_Equations_And_Systems_Word_Problems/256635: A farmer grows only sunflowers and flax on his 240 acre farm. This year he wants to plant 80 more acres of sunflowers than flax. How many acres of each crop does the farmer need to plant? 1 solutions Answer 188786 by richwmiller(9135)   on 2010-01-13 21:17:03 (Show Source): You can put this solution on YOUR website! s+f=240 s=f+80 s+f=240 s-f=80 2s=320 s=160 f=80

Numbers_Word_Problems/256714: Marco has 150 coins,all nickels and dimes. He has 12 more dimes than nickles. How many nickels and dimes does he have? 1 solutions Answer 188785 by richwmiller(9135)   on 2010-01-13 21:15:08 (Show Source): You can put this solution on YOUR website! n+d=150 d=12+n 89=d 69=n

Rectangles/256710: Is it mathematically possible to have a rectangle with x-dimensions equal to 1/2? 1 solutions Answer 188784 by richwmiller(9135)   on 2010-01-13 21:12:57 (Show Source): You can put this solution on YOUR website! rectangles have two dimensions length and width rectangular prisms (solids) similar to a cube have three dimensions length width and height.