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April 20, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
you dump a box of numbered sticks from 1 to 100, what is the probability that I will get a multiple of 8
Wednesday, April 2, 2014 at 3:35pm

math
1/5
Wednesday, April 2, 2014 at 3:34pm

Math 2
-489 > -498
Wednesday, April 2, 2014 at 3:33pm

math
you dump a box of numbered sticks from 1 to 100, what is the probability that I will get a multiple of 5,
Wednesday, April 2, 2014 at 3:31pm

math
1. n/2 = 38/2 =19 2) median is the mean of the 19th and 20th number. Mean = 12/2 = 6
Wednesday, April 2, 2014 at 3:31pm

Math
A B B B
Wednesday, April 2, 2014 at 3:29pm

math
what are the odds i favor of picking an S in Mississippi?
Wednesday, April 2, 2014 at 3:24pm

Math 2
Which is bigger -489 or -498? Use greater or less signs. Thanks
Wednesday, April 2, 2014 at 3:18pm

Math
What number is added to each number to get the next number? 509 + ____ = 517 517 + ____ = 525 etc.
Wednesday, April 2, 2014 at 3:09pm

Math
My pattern is 509, 517, 525, 533, 541. What is the place value to describe how the numbers change?
Wednesday, April 2, 2014 at 3:06pm

Math (check answer)
Sometimes is correct.
Wednesday, April 2, 2014 at 3:02pm

Math (check answer)
i meant sometimes
Wednesday, April 2, 2014 at 3:00pm

Math (check answer)
1.never the difference of two positive integers is _____ negative. A.always B.sometimes C.never
Wednesday, April 2, 2014 at 3:00pm

math
find the median for the given frequency score, x = 1,2,3,4,5,6,7,8,9,10 frequency, f = 1,1,3,3,5,7,5,5,7,1
Wednesday, April 2, 2014 at 2:18pm

math
correct. The power set of A P(A) is the set of all subsets of A. These would be {}, {2}, {3},...{2,3},{2,5},... and so on up to A itself.
Wednesday, April 2, 2014 at 12:59pm

math
Oh thanks..its 2^5=32..
Wednesday, April 2, 2014 at 12:35pm

math
5
Wednesday, April 2, 2014 at 12:29pm

math
the garden is 10x10, so what's the perimeter?
Wednesday, April 2, 2014 at 12:27pm

math
Suzanne wants to put a fence around her square garden. If the garden covers an area of 100 ft2, how many feet of fencing does she need? (1 point) 20 ft 40 ft 10 ft 400 ft
Wednesday, April 2, 2014 at 12:24pm

math
well, how many elements in A?
Wednesday, April 2, 2014 at 12:23pm

Math
ignore the 2nd part of my answer to the above, the numbers don't even match. I cut and pasted from a previous solution but the numbers were not even the same Also note that even though 263 is a solution, it is one of an infinite number. But it said to find "a number&...
Wednesday, April 2, 2014 at 12:23pm

math
six sides, so make sure there are 2 odd numbers.
Wednesday, April 2, 2014 at 12:22pm

math
Given a set with n elements has 2^n subsets.Find the number of subsets for set A={2,3,5,7,11}.
Wednesday, April 2, 2014 at 12:06pm

Math
a=b b+2b = 6(a-26) 3b = 6(b-26) 3b = 6b - 156 b = 52 So, they both started out with 52 cupcakes.
Wednesday, April 2, 2014 at 12:03pm

Math
look up "Chinese Remainder Theorem" and you will find many pages for this kind of problem You will have to know how to do arithmetic in "modular arithmetic" , and this forum_search_20140419 is not suitable to teach you that. I just worked out the above ...
Wednesday, April 2, 2014 at 11:22am

math
In English Class, after studying a book called \The Lord of the Flies" by William Golding, students are split into 6 groups and each group is required to make a fi lm based on one of the 8 important scenes in the novel. Each group can choose which scene they are creating ...
Wednesday, April 2, 2014 at 11:02am

math
your data just has to be entered here http://davidmlane.com/hyperstat/z_table.​html
Wednesday, April 2, 2014 at 11:01am

math
number of boys --- 2x number of girls --- 5x after 12 new boys number of boys = 2x+12 girls , still 5x (2x+12)/(5x) = 4/9 18x + 108 = 20x 108 = 2x x = 54 So now the number of boys = 2x+12 = 108+12 = 120
Wednesday, April 2, 2014 at 11:00am

Math
This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 2, when divided by 5 gives a remainder of 3, and when divided by 7 gives a remainder of 4.
Wednesday, April 2, 2014 at 10:52am

math
the current ratio of boys to girls at a certain school is 2 to 5 . if 12 additional boys were added to the school, the new ratio of boys to girls would be 4 to 9. how many boys currently attend the school?
Wednesday, April 2, 2014 at 10:28am

math
suppose a normal distrubtion has a mean of 25 and a standard deviation of 2. what is the area under the curve between 23 and 27
Wednesday, April 2, 2014 at 10:10am

Math
A and B had an equal numbers of cupcakes at first. After B bought twice as many cupcakes as he had at first and A gave away 26 cupcakes, B had 6 times as many cupcakes as A. How many cupcakes did A have at first?
Wednesday, April 2, 2014 at 9:37am

math
To compare 3/8 and 9/16 what equivalent fraction could you find
Wednesday, April 2, 2014 at 8:12am

math
write a number on each section of a hexagon so that the probability of getting an odd number is 1/3
Wednesday, April 2, 2014 at 6:21am

math
center at (0,0) a^2+b^2 = c^2 c = √85
Wednesday, April 2, 2014 at 5:51am

math
a+50 = 2b b+50 = 2a (a+b)+100 = 2(a+b) a+b = 100
Wednesday, April 2, 2014 at 5:49am

math
a < c a+c = 29 m = a+26 we want maximum value for alvin, because that will also give the max to melvin. Since a<c, alvin has to have less than half of their shared 29. So, a <= 14 a=14 c=15 m=40 max total: 69
Wednesday, April 2, 2014 at 5:46am

math
$10 is tax. 50% of that is $5, so reduce the cost by that much. What % of 90 is 5? Just wondering -- where is the profit needed to make money?
Wednesday, April 2, 2014 at 5:42am

business Math
Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115. What is the percent of interest paid on this loan? (Do not round intermediate calculations. Round your answer to the nearest whole percent.)
Wednesday, April 2, 2014 at 5:20am

Business Math
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,307 interest on $45,000 at 4.0%. What was the time, using exact interest? (Do not round intermediate calculations. Round up your answer to the nearest day.) Please help!
Wednesday, April 2, 2014 at 5:18am

Math
80miles = 80*1.60934 = 128.7472 km
Wednesday, April 2, 2014 at 5:17am

math
A product cost $100, 90% of the price being production cost,the remainder being tax, if the govt raises the tax by 50%, by how much in % will the factory have to reduce its production cost to keep he price still at $100
Wednesday, April 2, 2014 at 4:31am

math
Alvin, Calvin and Melvin each have some positive integer number of sweets. Alvin has fewer sweets than Calvin, and they have 29 sweets in total. Melvin has 26 sweets more than Alvin. What is the maximum number of sweets that they can all have in total?
Wednesday, April 2, 2014 at 3:34am

math
Adam and Bob went apple picking in an orchard. At the end of the day, they realized that if Adam had picked 50 more apples, he would have picked twice as many as Bob picked. On the other hand, if Bob had picked 50 more apples, he would have picked twice as many as Adam picked...
Wednesday, April 2, 2014 at 3:28am

math
a number of children chose roald dahl multiplied by a number of children who chose C.S Lewis is 735. 14 more chose Jacquline wilson. how many chose Jacquline wilson and how many chose roald dahl
Wednesday, April 2, 2014 at 1:54am

math
Find the foci x^2/49 + y^2/36 = 1
Wednesday, April 2, 2014 at 1:48am

Math
x^2/5 +8x/5 -1
Wednesday, April 2, 2014 at 1:04am

Math (how do you find the volume of a cone)
for any object with a point at the top and straight sides use (1/3) height * area of base
Wednesday, April 2, 2014 at 12:49am

Math
Dd
Wednesday, April 2, 2014 at 12:26am

Math
How do you solve 1/5(x^2+8x-5)
Tuesday, April 1, 2014 at 11:56pm

Math
forgot the link http://www.jiskha.com/display.cgi?id=132​9034595
Tuesday, April 1, 2014 at 11:25pm

Math
looks like yours, just input 20 instead of the 60
Tuesday, April 1, 2014 at 11:25pm

Math (how do you find the volume of a cone)
V = (1/3) pi r^2 h
Tuesday, April 1, 2014 at 11:07pm

Math (how do you find the volume of a cone)
for example, a radius of 5 and a height of 20, could you please explain the steps? Thank you in advance!!
Tuesday, April 1, 2014 at 11:06pm

Math
Use the pythagorean theorem. a^2+b^2=c^2
Tuesday, April 1, 2014 at 10:49pm

Math
The formula r=2sqrt(...)5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will Acari skid at 20 mph?
Tuesday, April 1, 2014 at 10:46pm

Math
Darla is building a desk. To make sure she had made a square corner, she measures 7ft from the corner along one edge, and 8ft from the corner of the other edge. How long should the diagonal be between those two points if the corner is a right angle?
Tuesday, April 1, 2014 at 10:42pm

Math
-1/4
Tuesday, April 1, 2014 at 10:37pm

Math
http://hubpages.com/hub/What-are-the-Pro​perties-of-Addition-and-Multiplication
Tuesday, April 1, 2014 at 10:02pm

math
0.8 * 4 = ?
Tuesday, April 1, 2014 at 9:59pm

Math
What property is shown in the equation below? 6x0=0 a)zero property of multiplication b)inverse property of multiplication c)identity property of multiplication d)commutative property of multiplication
Tuesday, April 1, 2014 at 9:58pm

Math!!!
4/100 = x/80 100x = 320 x = 3.20 or take .2($4) = $ .80 after discount, cost = $ 4.00 - .80 = $3.20
Tuesday, April 1, 2014 at 9:56pm

math
Sam buys a lamp during the sale. There was a discount of 20%. If the original price is $4, what is the sale price?
Tuesday, April 1, 2014 at 9:52pm

Math
-4,-1/4,4,1/4
Tuesday, April 1, 2014 at 9:49pm

Math
did it here .... http://www.jiskha.com/display.cgi?id=139​6401662 give your posts a bit of time. You reposted this with only about 20 minutes in between. If tutors are online they may be answering somebody else's question while yours is waiting.
Tuesday, April 1, 2014 at 9:49pm

math
0.6 * 50 = ?
Tuesday, April 1, 2014 at 9:46pm

Math
What is y+3-4=5, with the sqrt.(...) sign over y+3
Tuesday, April 1, 2014 at 9:46pm

math
A pen is marked down 40% from the original price. The original price was $50. What is the sale price before sales tax?
Tuesday, April 1, 2014 at 9:44pm

math
By definition, parallel rays never meet.
Tuesday, April 1, 2014 at 9:43pm

Math
0.6x = 12 x = 12/0.6 x = 20 20 - 12 = ?
Tuesday, April 1, 2014 at 9:33pm

MATH UGH WORD PROBLEM
capacity of tank = π r^2 h = π(100^2)(40) = 400000π number of gallons = 7.5(400000π) = appr .....
Tuesday, April 1, 2014 at 9:30pm

Math!!!
Sam buys a lamp during the sale. There was a discount of 20%. If the original price is $4, what is the sale price? - Please put in proportion form!
Tuesday, April 1, 2014 at 9:15pm

math..help again
Got it.... Thanks so much!!!
Tuesday, April 1, 2014 at 9:14pm

Math
A shirt is on sale for 40% off. The sale price is $12. What was the original price? What was the amount of the discount?
Tuesday, April 1, 2014 at 9:13pm

math
90
Tuesday, April 1, 2014 at 9:11pm

MATH UGH WORD PROBLEM
About 7.5 gallons of water occupy one cubic foot. About how many gallons of water are in a clindrical water tank with dimensions with 100 ft radius and 40 ft height.
Tuesday, April 1, 2014 at 9:10pm

math
can a parallel rays form an angle explain
Tuesday, April 1, 2014 at 9:06pm

math
Jill is corrrect
Tuesday, April 1, 2014 at 9:04pm

Math
area of whole thing is 120x60 = 7200 ft^2 so half of that is 3600 ft^2 make a sketch showing the first run area of 1st run = 120x4 + 120x4 + 52x4 + 52x4 = 1376 leaving 2224 make a sketch of the remaining rectangle which is 112 by 52 area of 2nd run = 112x4+112x4+48x4+48x4 = ...
Tuesday, April 1, 2014 at 8:55pm

Math
The demand for rice in Japan for a particular year was estimated by the general function q = f (p) =Ap^(-0.13), where p represents the price of a unit of rice, A represents a constant that can be calculated uniquely for a particular year, and q represents the annual per capita...
Tuesday, April 1, 2014 at 8:46pm

Math- urgent
1st number --- x 2nd number --- y "The second of two numbers is five more than the twice first." ---> y = 2x+5 "the sum of the numbers is 44" ---> x+y = 44 x+y = 44 x + (2x+5) = 44 x + 2x + 5 = 44 3x = 39 x = 13 1st is 13, 2nd is 31 check: is 31 five ...
Tuesday, April 1, 2014 at 8:44pm

math..help again
look back at your previous post of this same question
Tuesday, April 1, 2014 at 8:42pm

math
2.75 * 3.2 = 8.8 = 8 4/5 tablespoons
Tuesday, April 1, 2014 at 8:41pm

math
I gave it to you ... instead of y I have "cost" instead of x I have "n" y = mx + b <-----> cost = (1/10)n + 5
Tuesday, April 1, 2014 at 8:39pm

math..help again
A photo lab manager graphed the cost of having photos developed as a function of the number of photos in the order. The graph is a line with a slope of 1/10th that passes through (10,6). Write an equation in slope-intercept form that describes the cost to have photos developed.
Tuesday, April 1, 2014 at 8:26pm

math
Please help!pam is mixing 3 1/5 batches of paint.if one batch calls for 2 3/4 tablespoons of detergent to add to the tempura powder,how many tablespoons of detergent will pam need?
Tuesday, April 1, 2014 at 8:24pm

Math- urgent
The second of two numbers is five more than the twice first. The sum of the numbers is 44. Find the numbers. Show all work.
Tuesday, April 1, 2014 at 8:22pm

Math
The answer is integer
Tuesday, April 1, 2014 at 8:22pm

Math
Venski and his brother have each agreed to mow half of the front lawn, which is a rectangle, 120 feet by 60 feet. The law mower cuts a 4-foot-wide strip. If Venski starts at one corner and mows around the lawn toward the center, on which trip around will he have half the area ...
Tuesday, April 1, 2014 at 7:34pm

Math
Multiply by 8. 8 * 2.5 = 20 feet 8 * 0.1 8 0.8 feet
Tuesday, April 1, 2014 at 7:01pm

math
102
Tuesday, April 1, 2014 at 7:00pm

Math
Do you have choices?
Tuesday, April 1, 2014 at 6:58pm

Math
Can u help me on this you have to convert inches into feet 1 inch = 8 feet and how do I do this with 2 1/4inches and also 1/10inches
Tuesday, April 1, 2014 at 6:58pm

Math
what value is equivalent to -1/4?
Tuesday, April 1, 2014 at 6:57pm

math
Fg
Tuesday, April 1, 2014 at 6:48pm

math
So if slope intercept form is y=mx+b what would this equation look like for this word problem? Thanks
Tuesday, April 1, 2014 at 6:34pm

Math
ummmhhh, how many sides does a hexagon have ?
Tuesday, April 1, 2014 at 6:19pm

Math
What is the perimeter of a regular hexagon with sides measuring 3 1/2 feet
Tuesday, April 1, 2014 at 6:14pm

math
I will assume that your given ordered pair (10,6) is of the type (number , cost), then cost - 6 = (1/10)(number -10) cost = (1/10) number -1 + 6 cost = (1/10)n + 5 so if n = 25 cost = (1/10)(25) + 5 = 7.5 units of cost (you gave no units)
Tuesday, April 1, 2014 at 5:57pm

1st grade math
Write some name for 12
Tuesday, April 1, 2014 at 5:33pm

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