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April 19, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
The highest point in alabama is 2,400 feet high. The lowest point is 500 feet high. How much higher is the highest point than the lowest point?
Wednesday, March 12, 2014 at 8:41pm

math
Mount washington in new hampshire is 2,096 yards high. How many feet is the mountain? (3ft = 1 yd)
Wednesday, March 12, 2014 at 8:40pm

math
Multiply.
Wednesday, March 12, 2014 at 8:33pm

math
12 * 14 * 7 = ? minutes
Wednesday, March 12, 2014 at 8:32pm

math
The typical American eats 96.3 pounds of beef each year. If the average price of beef is $2.42 per pound, about how much is spent on beef by each american?
Wednesday, March 12, 2014 at 8:32pm

math
One radio station has an average of 12 minutes of advertising per hour. The station broadcasts 14 hours per day. How much advertising time can it sell each week?
Wednesday, March 12, 2014 at 8:29pm

Math
P= N [ 1 - (1+r)^-n ] /r P = present value, what he pays N = payment amount r = interest rate/period n = number of payments here n = 120 months need compound interest rate per month, not quarterly .045/4 = .01125 1.01125^4 = 1.045765 per year (1+r)^12 = 1.045765 (1+r) = 1....
Wednesday, March 12, 2014 at 8:28pm

math
(1/30)hour/entry * 630 entries = 21 hours 21 hours * $7.50/hour = $157.50 They are not paying her enough.
Wednesday, March 12, 2014 at 8:03pm

math
ur tootie
Wednesday, March 12, 2014 at 7:58pm

Math
how much should rod pay for a 10 year annuity that provides month end payments of 1800 at 4.5% compounded quarterly
Wednesday, March 12, 2014 at 7:49pm

math
18/24 = 3/4
Wednesday, March 12, 2014 at 7:44pm

math
There was a competition that attracted 630 entries for a $250 prize. Molly gets paid $7.50 per hour for checking the entries, which takes her 2 minutes each. How much do they pay Molly to check the entries?
Wednesday, March 12, 2014 at 7:43pm

Math
4. only the stem and leaf plot 5. both graphs
Wednesday, March 12, 2014 at 7:21pm

Math
0.5x + 0.25x + 6.75 + 2.5 = x 0.75x + 9.25 = x 9.25 = x - 0.75x 9.25 = 0.25x 9.25 / 0.25 = x 37 = x
Wednesday, March 12, 2014 at 7:13pm

Math
Sam spent half his money on a shirt. At another store he spent half the money he had left. Then he bought a cd for $6.75. He had $2.50 left. How much money did Sam have in the beginning?
Wednesday, March 12, 2014 at 7:05pm

MATH
http://www.mathsisfun.com/geometry/const​ruct-linebisect.html
Wednesday, March 12, 2014 at 7:01pm

MATH
explain how to construct a perpendicular bisector
Wednesday, March 12, 2014 at 6:57pm

business math
You're welcome.
Wednesday, March 12, 2014 at 6:45pm

business math
thank you both!
Wednesday, March 12, 2014 at 6:43pm

business math
to reduce by 12 % multiply by 1-.12 = 0.88
Wednesday, March 12, 2014 at 6:39pm

business math
If did that, you'd need to subtract that answer from 186,000. A more efficient way is 0.88 * 186,000 = 163,680
Wednesday, March 12, 2014 at 6:38pm

business math
Martin Ellingham is negotiating to buy a vacation cottage in Port Wenn. The seller of the cottage is asking $186,000. Martin offered him a cash deal, owner-seller (no broker) only if the seller would reduce the price by 12%. The seller agreed. Martin must pay 10% down payment ...
Wednesday, March 12, 2014 at 6:34pm

math
I would assume it means to divide each third into two pieces (presumably also equal halves)
Wednesday, March 12, 2014 at 6:08pm

math
what does 2-fracture each third mean?!
Wednesday, March 12, 2014 at 6:04pm

math
avg speed is total distance divided by total time: (5+4)/(21+39) km/min = 9 km/hr That's a pretty good clip!
Wednesday, March 12, 2014 at 6:00pm

math
9 km in 60 minutes = 9 kph
Wednesday, March 12, 2014 at 6:00pm

math
9 kilometers in 60 minutes = 9 kilometers/ hour
Wednesday, March 12, 2014 at 5:59pm

math
if someone walks 5km in 21 minutes and then 4 km in 39 minutes then whats his average speed
Wednesday, March 12, 2014 at 5:57pm

help with math!!!!
You should be able to do them yourself now.
Wednesday, March 12, 2014 at 5:39pm

help with math!!!!
Do not do it the way I did it. Use substitution, but you should get the same answer.
Wednesday, March 12, 2014 at 5:38pm

help with math!!!!
Thank you so much can you help me with couple more?
Wednesday, March 12, 2014 at 5:38pm

help with math!!!!
13. -x + y = -13 3x - y = 19 --------------- too easy to add them 2 x + 0 = 6 x = 3 y = -10
Wednesday, March 12, 2014 at 5:37pm

help with math!!!!
Oh yeah sorry. i didn't see it. for number one it was 3x-y=19
Wednesday, March 12, 2014 at 5:29pm

help with math!!!!
Oh thanks ! and for number one thats how the equations was written
Wednesday, March 12, 2014 at 5:29pm

math
OK. Enough, Mr. Awesome! You've been banned before for treating Jiskha as a playground. I'll ban you for a much longer time if you post more nonsense.
Wednesday, March 12, 2014 at 5:25pm

help with math!!!!
I dont get it. What do you mean?
Wednesday, March 12, 2014 at 5:22pm

help with math!!!!
13. -x + y = -13 3x - 1 = 19 Is that a typo? No y in second equation? That sure makes it easy. 15. y = (7 x + 5) x - 3(7x+5) = 5 x - 21 x - 15 = 5 -20 x = 20 x = -1 y = -2 17. y = (-3x - 13) -2x + 5 (-3x-13) = -54 or 2x + 5 (3x+13) = 54 17 x + 65 = 54 17 x = - 11 x = -11/17 y...
Wednesday, March 12, 2014 at 5:22pm

math
what is 2 + 2 = ?
Wednesday, March 12, 2014 at 5:19pm

Math ( trig )
bottom of wheel up 5 so height above wheel bottom = 40 distance below center = 47 -40 cos A = 7/47 A = 81.4 degrees
Wednesday, March 12, 2014 at 5:12pm

help with math!!!!
Solve each system using substitution. Tell whether the system has one solution, infinitely many solutions, or no solution. 13. -x + y = -13 3x - 1 = 19 15. 1/3y= 7/3 x + 5/3 x - 3y = 5 17. 3x + y = -13 -2x + 5y = -54
Wednesday, March 12, 2014 at 5:11pm

PLZZ HELP ME WITH THIS MATH MS SUE.
We know nothing about the solids you are comparing.
Wednesday, March 12, 2014 at 5:02pm

PLZZ HELP ME WITH THIS MATH MS SUE.
@MSSUE @Anoymous
Wednesday, March 12, 2014 at 4:52pm

PLZZ HELP ME WITH THIS MATH MS SUE.
ARE THEY CORRECT? HELP ME NOW
Wednesday, March 12, 2014 at 4:51pm

PLZZ HELP ME WITH THIS MATH MS SUE.
4. For the pair of similar solids, find the value of the variable. cylinders (1 point) 3 cm 18 cm 16 cm** 2 cm 5. For the pair of similar solids, find the value of the variable. pyramids (1 point) 12 mm 48 mm** 20 mm 3 mm ARE THESE CORRECT?
Wednesday, March 12, 2014 at 4:49pm

6th grade math
The median gives you sort of a middle where half are above and half below. Use the median because Zimbabwe, Canada, and the US are not representative. As you can see, Zimbabwe pulls the average way down but is really what is often called an "outlier".
Wednesday, March 12, 2014 at 4:39pm

Business Math
Larry Mager purchased a ski lodge in Telluride for $850,000. His bank is willing to finance 70% of the purchase price. As part of the mortgage closing costs, Larry had to pay 4(1/4) discount points. How much did this amount to?
Wednesday, March 12, 2014 at 4:36pm

Math special angels PLEASE JUST GIVE ME THE ANSWER
http://www.aaamath.com/geo-comp-or-sup.h​tm I'll be glad to check YOUR answer.
Wednesday, March 12, 2014 at 4:33pm

6th grade math
I have to determine which method - mean, median, or mode - would be best for answering the following question: Find the average number of athletes for the sample of 7 countries listed by deciding which measure of center is the best represntation of the number of athletes from ...
Wednesday, March 12, 2014 at 4:14pm

Math special angels PLEASE JUST GIVE ME THE ANSWER
An angle measures 47 degrees. what are the measures of the angle's complement and supplement A) complement 43. suppplement 133 B) complement 133. suppplement 43 C)complement 133 supplement 143 D)complement 143 supplement 53
Wednesday, March 12, 2014 at 4:14pm

Math ( trig )
If a person on the Ferris wheel is 45 feet above the ground. The Gris wheel has a radius of 47.f and is 5 feet above the ground. At what degrees had the Ferris wheel rotated counted clockwise?
Wednesday, March 12, 2014 at 3:59pm

Math ~ Check Answers ~
I did not read it carefully.
Wednesday, March 12, 2014 at 3:47pm

Math ~ Check Answers ~
yes, 60 was correct
Wednesday, March 12, 2014 at 3:43pm

Math ~ Check Answers ~
So... is the 1st one is correct? A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. •3.8 ft^3 •60 ft^3 <<<<<< •15 ft^3 •10....
Wednesday, March 12, 2014 at 2:46pm

Math ~ Check Answers ~
If it is similar, then ALL the dimensions, not just the height, are doubled. If you double lengths, you quadruple areas A = k L^2 90 * 4 = 360 in^2
Wednesday, March 12, 2014 at 2:21pm

Math ~ Check Answers ~
A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. •3.8 ft^3 •60 ft^3 <<<<<< •15 ft^3 •10.4 ft^3 A pyramid has a height of...
Wednesday, March 12, 2014 at 2:17pm

MATH
x^2 - 4 x - 8 = 0 x = [ 4 +/- sqrt (16+32) ]/2 x = [ 4 +/- 4 sqrt 3 ] /2 x = 2 [1+/- sqrt 3 ]
Wednesday, March 12, 2014 at 2:14pm

MATH
Use your calculator to compute the actual roots. Use the Quadratic Formula to solve x2 – 4x – 8 = 0.
Wednesday, March 12, 2014 at 2:07pm

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
Wednesday, March 12, 2014 at 1:22pm

Math
I would use a bar graph for both.
Wednesday, March 12, 2014 at 1:21pm

math patterns and rules
have you actually tried any of the proposed solutions?
Wednesday, March 12, 2014 at 1:16pm

Liberal Arts Math II
https://www.google.com/search?client=saf​ari&rls=en&q=snowflake+island+perimeter&​ie=UTF-8&oe=UTF-8
Wednesday, March 12, 2014 at 1:14pm

math patterns and rules
write a rule for the sequnce. 3,-3,-9,-15 a.start with 3 and add -6 repeatedly b.start with -6 snd add 3 repeatedly c.start with 3 and add 6 repeatedly d.start with 3 an subtract -6 repeatedly
Wednesday, March 12, 2014 at 1:12pm

math/algebra
1 - 1/(x-1) - 2/(x+1)
Wednesday, March 12, 2014 at 1:08pm

STATISTIC HELP
1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the questions that follow. Plain Brown Blue Green Orange Red Yellow Probability 0.3 0.1 0.1 0.1 0.02 ??? ...
Wednesday, March 12, 2014 at 1:08pm

math
Find 2 factors in your end terms that will add to give the middle term. 18 = 9*2 = 6*3 This doesn't seem possible with your equation. Do you have a typo?
Wednesday, March 12, 2014 at 1:07pm

math/algebra
Express x^2 - 3x/x^2 - 1 As partial fractions
Wednesday, March 12, 2014 at 11:51am

math/algebra
Express x^2 - 3x x^2 - 1 As partial fractions
Wednesday, March 12, 2014 at 11:42am

math/algebra
This was actually just like the last one. It is your turn to do them now. I already passed the course.
Wednesday, March 12, 2014 at 11:18am

math/algebra
x+z = 1 so z = (1-x) 2 x + 1 y = 1.5 so y = (1.5 - 2x) x + y + z = 0.5 so x + (1.5-2x) + (1-x) = 0.5 x + 1.5 - 2x +1 - x = 0.5 -2 x + 2.5 = 0.5 2 x = 2 x = 1 etc
Wednesday, March 12, 2014 at 11:16am

math/algebra
Solve the following systems: 2x + 2z =2 4x + 2y =3 2× + 2y + 2z =1
Wednesday, March 12, 2014 at 10:59am

Math
You are welcome :)
Wednesday, March 12, 2014 at 10:58am

Life science, history, geography, and maths literacy
i say you must do history,geography,pure math
Wednesday, March 12, 2014 at 10:49am

math/algebra
z = (2-x) y = (3-x) x -(3-x) +(2-x) = 1 x - 3 + x + 2 - x = 1 x - 1 = 1 x = 2 z = 0 y = 1
Wednesday, March 12, 2014 at 10:44am

Math
Thank u so much
Wednesday, March 12, 2014 at 10:42am

Math
20 k = 1980 k = 99 yes correct
Wednesday, March 12, 2014 at 10:41am

math/algebra
Solve the following systems: 1) x+z=2 2x+y=3 X-y+z=1
Wednesday, March 12, 2014 at 10:38am

Math
5. Solve the proportion using cross product 18/20 = k/110 A. 99 (my answer) B. 122 C. 33 D. 2.9 (my answer) The reason why I picked 2 of them were because I'm stuck between the two
Wednesday, March 12, 2014 at 10:36am

math
2 x^2 -2 = 0 2 (x^2-1) = 0 (x-1)(x+1) = 0 x = 1 or x = -1
Wednesday, March 12, 2014 at 10:36am

liberal arts math
(4x+1)^2 = 4x(4x+1) + 1(4x+1) =16 x^2 + 4x + 4 x + 1 = 16 x^2 + 8 x +1 or do FOIL if you know it. so: - x^2 + 3 = 16 x^2 + 8 x + 1 17 x^2 + 8 x - 2 = 0
Wednesday, March 12, 2014 at 10:34am

Math
Is 5. 2.9
Wednesday, March 12, 2014 at 10:33am

math
2x^2+7=9
Wednesday, March 12, 2014 at 10:12am

liberal arts math
Put the equation below in the form ax^2+bx+c=0. -x^2+3=(4x+1)^2, I've been stuck on this for the past hour, could someone please explain how to do this problem?
Wednesday, March 12, 2014 at 10:09am

math
I am a 3rd grader and I was given the same math question on March 5, 2014. My answer was and still is Marty's pizza was bigger than Luis. My teacher said that my answer was wrong because Luis ate 5/6 of his pizza. I tried to reason with her because the problem stated that ...
Wednesday, March 12, 2014 at 9:54am

math
22 Dimes 8 quarters
Wednesday, March 12, 2014 at 8:56am

Math
20 times 10 = 200
Wednesday, March 12, 2014 at 5:27am

math
First step -- talk to your teacher!
Wednesday, March 12, 2014 at 5:27am

math
i dont get how my teacher teaches she goes to fast for my to understand it what do i do
Wednesday, March 12, 2014 at 3:00am

Math
20 tens is the same as how many ones?
Wednesday, March 12, 2014 at 2:36am

Math: Algebra
I really need help ASAP! I don't actually get what the question is saying...how do you solve the equation? I know the answer, just not how to get to it! THANK YOU FOR HELPING! ~Sanja
Wednesday, March 12, 2014 at 1:31am

Math: Algebra
What is f(-2) for the function f(x)=-2/3(x)-7/8
Wednesday, March 12, 2014 at 1:26am

Math
84 = pi * 36 * h now just solve for h same for the other
Wednesday, March 12, 2014 at 12:13am

math
13/150
Wednesday, March 12, 2014 at 12:12am

Math
Rey is playing a game. For every 2 steps forward he takes, he takes one step back. Complete the function table to show Rey's steps. Then write an equation for the function table. F 2-4-6-8-10 B _ _ _ _ _
Tuesday, March 11, 2014 at 11:40pm

math
(x-6)(x+3)
Tuesday, March 11, 2014 at 11:40pm

math
The voltage (in volts) induced in a coil of wire is v = (2t + 1)^0.5. The current in the coil is initially 0.3 amps, and the inductance is 5H. What is the equation for the current in the coil?
Tuesday, March 11, 2014 at 10:47pm

Math
Where is this sign supposed to go? √ To type that sign, hold down the ALT key while you type 251 on the number keyboard.
Tuesday, March 11, 2014 at 10:29pm

math
slove for ^x x^2-3x-18=0
Tuesday, March 11, 2014 at 10:24pm

math
x^2+x-18=0 quadratic equation slove for x
Tuesday, March 11, 2014 at 10:19pm

Math
Could someone please help me solve this radical equation of 2x+7-2=x It's suppose to have the radical sign but I don't know how to put it on here. Thank you
Tuesday, March 11, 2014 at 10:13pm

4th grade Math Help
Mr.brooks brought a box of 66 acorns to class can he give 3 acorns to each of the 23 students in his class why or why not
Tuesday, March 11, 2014 at 10:08pm

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