Sunday

August 31, 2014

August 31, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

Arrange from biggest to smallest: 365 ml, 90ml,2l,680ml
*Monday, August 25, 2014 at 10:55am*

**Math**

Mike went to the bakery and bought eatables worth $ 25, out of which 30 cents went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free?
*Monday, August 25, 2014 at 9:43am*

**Math**

2+22+23+......+29=? A. 2044 B. 1022 C. 1056 D. None of these
*Monday, August 25, 2014 at 9:01am*

**Math**

2+22+23+.......*29=?
*Monday, August 25, 2014 at 8:56am*

**Math**

Sana and Rabia has more chocolates, respectively 20% and 50% than Hiba. The ratio, of the number of chocolates that Sana and Rabia has, is:
*Monday, August 25, 2014 at 8:38am*

**math**

ATM personal identification number PIN codes typically consist of four-digit sequences of numbers. Find the probability that if you forget your PIN, you can guess correct sequence if you recall the two digits
*Monday, August 25, 2014 at 6:22am*

**math**

A drawer contains 4 red socks and 4 blue socks. Find the least number of socks that must be drawn from the drawer to be assured of having a pair of red socks
*Monday, August 25, 2014 at 6:21am*

**Math**

Arham opens a retail store with Rs 3500 and after 5 months, Babar joins with Arham as his partner. After a year, the profit is divided in the ratio 2:3. What is Babar' s contribution in the capital?
*Monday, August 25, 2014 at 6:13am*

**Math**

Trees grown in a forest increased from 175000 to 262500 in decade. The average percent increase of growth per year is?
*Monday, August 25, 2014 at 6:07am*

**Math**

Waseem buys jeans worth Rs6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax@ 10%. Find the amount he will have to pay for the jeans.
*Monday, August 25, 2014 at 6:03am*

**Math**

Mike went to the bakery and bought eatables worth $ 25, out of which 30 cents went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free?
*Monday, August 25, 2014 at 5:44am*

**math**

Find the altitude of a right circular cone of maximum curved surface which can be inscribed of radius "r"
*Monday, August 25, 2014 at 4:52am*

**Math**

Can't figure this out... :( An isosceles trapezium with its longest side facing upward has an area of 145cm^2. Find the amount of material needed to make up the sides of the trapezium, when the side facing upward does not need to be covered (i.e. Perimeter - length of ...
*Monday, August 25, 2014 at 3:13am*

**Math**

Change the following to the standard equation of the ellipse 1. 5x^2 + 3y^2 = 15 2. x^2 + 12y^2 = 16 3. 3y^2 + 4x^2 = 3 And please can you give the value of a, b and c of this equations... so that I can sketch it....
*Monday, August 25, 2014 at 2:52am*

**math**

calculate the resistances of (a) 100-watt 120-volt incandescent lamp, (b) a 750-watt 115-volt toaster, (c) a 1300 watt 110-volt portable iron.
*Sunday, August 24, 2014 at 11:24pm*

**Math**

You want to create an open rectangular box from a rectangular box. from a square piece of cardboard 20 inches by 20 inches. You will cut a 3 inch square from each corner. Draw a diagram and find the length of the box. Can someone help me with this diagram thing. I can't ...
*Sunday, August 24, 2014 at 10:27pm*

**Math - Old SAT exam**

If j, k, and n are consecutive integers such that 0<j<k<n and the units (ones) digit of the product is 9, what is the units digit of k? I thought of setting the product of x and x+2 to something but didn't know what.. I thought of pairs that get to a unit digit of...
*Sunday, August 24, 2014 at 10:26pm*

**Math**

A piece of fabric is 52 inches long. You cut the fabric into two pieces. The first piece is x inches long. The second is 14 inches longer than the first. Draw a diagram & solve for x.
*Sunday, August 24, 2014 at 10:20pm*

**math**

The length of the second side of a triangle is 24 cm shorter than twice the length of the first side. Using f for the first side and s for the second side, translate the sentence into an equation.
*Sunday, August 24, 2014 at 10:15pm*

**Math**

You want to create an open rectangular box from a rectangular piece of cardboard. The cardboard has length 14 in and you want to cut 2 in squares from each corner. Draw a diagram. What is the length of the box?
*Sunday, August 24, 2014 at 10:11pm*

**Math**

the perimeter of a rectangular park is 1080 yds. The width of the park is 240 yds. What is the length of the park? What is the amount of grass that the township has to mow & fertilize?
*Sunday, August 24, 2014 at 10:08pm*

**math 116 week 7**

-7x+4y>+=-28 and 2x+10y> 20 intersect
*Sunday, August 24, 2014 at 9:39pm*

**Math**

1 7/8 - 5 8/11 =
*Sunday, August 24, 2014 at 9:30pm*

**Math**

3 1/4 - 1 1/9 =
*Sunday, August 24, 2014 at 9:22pm*

**Math**

Two salesman Eman and Masood are paid a total of Rs. 550 per week by their employer. If Eman is paid 120 percent of the sum paid to Masood , how much is Masood paid per week?
*Sunday, August 24, 2014 at 9:18pm*

**Math**

9(s+4)^2-62(s+4)=7 Solve for s
*Sunday, August 24, 2014 at 6:01pm*

**math**

What is the slope of the budget line from trading with Friday (coconuts for fish)?
*Sunday, August 24, 2014 at 5:37pm*

**Math**

From 1990 to 2006, the population, p (in millions), of a large city can be modeled by p = 1.1(1.05)t, where t is the number of years since 1990.
*Sunday, August 24, 2014 at 5:09pm*

**Math**

A sheet of paper is 8 1/2 in wide and 11 in long. The sheet is printed with a margin 1 1/4 in. wide on all four sides. Find the perimeter of the printed part of the page. I got 34; I subtracted 11 with 1 1/4 and 8 1/2 with 1 1/4. I got 9 3/4 and 7 1/4. I added those and got 17...
*Sunday, August 24, 2014 at 3:58pm*

**Math**

A cabinet has shelves that are 12 1/2 in. apart. On one shelf, Katherine stacked a CD player that is 4 5/8 in/ high on top of an amplifier that is 6 3/4 in. high. How much space was left above the CD player? I got 1 1/4; I added 6 3/4 and 4 5/8 and got 11 2/8. Then I ...
*Sunday, August 24, 2014 at 3:37pm*

**math**

a number consists of two digits whose sum is 8.if 8 is added to the number its digits are reversed.find the number?
*Sunday, August 24, 2014 at 2:01pm*

**math**

in an examination,a student requires 40% of the total marks to pass. if Ru pa gets 185 marks and fails by 15 marks,find the total marks?
*Sunday, August 24, 2014 at 1:54pm*

**Math**

Bilawal can build a wall in 15 days and Bilal in 20 days. If the work on it together for 4 days , then the fraction of the work ?
*Sunday, August 24, 2014 at 1:46pm*

**Math**

Two salesman Eman and Masood are paid a total of Rs. 550 per week by their employer. If Eman is paid 120 percent of the sum paid to Masood , how much is Masood paid per week?
*Sunday, August 24, 2014 at 1:43pm*

**math**

A cylindrical gasoline tank is 50 ft high and has diameter 70 ft. How many gallons of gasoline will the tank hold if there are 7.5 gallons in 1 ft3 ?
*Sunday, August 24, 2014 at 1:07pm*

**math**

Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is reasonable
*Sunday, August 24, 2014 at 12:54pm*

**Math**

Bilawal can build a wall in 15 days and Bilal in 20 days. If the work on it together for 4 days , then the fraction of the work ?
*Sunday, August 24, 2014 at 11:22am*

**math**

(A)Simplify: n 1 n-1 1. 2 . 25 --------------- n 50.50 2. n 4 n 1 2 - 6.2 --------------- n 2 2 .5 (B)solve for x (1 over 2) to the power x 1 =32
*Sunday, August 24, 2014 at 10:40am*

**Math (quadratic function)**

A fuel station sell, aproximately, 2140 liters of gasoline, per day, in which each liters costs 1,75 dollars. The owner observed that, reducing the price of the liter, occurs an increase in the volume of fuel sold, in the proportion of 20 liters sold per day for each cent ...
*Sunday, August 24, 2014 at 9:41am*

**math**

For which vAlues of x the following expressions not defined if all these expressions are real numbers 1. 2x-1 negative ------ 3x-2 2.square root of 2(x-7)
*Sunday, August 24, 2014 at 8:56am*

**Math**

Bilawal can build a wall in 15 days and Bilal in 20 days. If the work on it together for to days , then the fraction of the work ?
*Sunday, August 24, 2014 at 6:44am*

**Math**

Three employes had salaries of 1136,7636 and 11628 respectively. What percentage of the total salaries did the highest- paid employee get ?
*Saturday, August 23, 2014 at 10:17pm*

**The Curriculum**

Which of the following is not an effective instructional strategy to help children develop math concepts? A. Using collections of commonly found objects for them to explore and manipulate B. Encouraging children to come up with their own conclusions rather than giving them ...
*Saturday, August 23, 2014 at 9:38pm*

**Math**

Solve: + n =
*Saturday, August 23, 2014 at 9:20pm*

**math**

Use quadratic formula (3x/x-1)+(2/x)=4 the solution set is ( , )
*Saturday, August 23, 2014 at 9:17pm*

**math**

As of August 22, 2014 the ratio of wins to total games the Red Sox played is? First of all I need to know if I am right about how many games the red sox played. I am pretty sure that they played 161 games. Am I correct?
*Saturday, August 23, 2014 at 8:26pm*

**math**

10. Michelle will divide 39 herbal tea bags and 91 mint tea bags among gift boxes. Each gift box will have the same number of herbal tea bags and the same number of mint tea bags. What is the greatest number of gift boxes Michelle can make?
*Saturday, August 23, 2014 at 7:14pm*

**math**

8. How many different four digit numbers can be made from the digits 3,8,6, and 9 if each digit appears only once in the arrangement? Is the answer 10?
*Saturday, August 23, 2014 at 7:11pm*

**math**

14. If a equals 50% of b, then in terms of a 50% of 5b is equal to what?
*Saturday, August 23, 2014 at 7:04pm*

**math**

16. if (x^2-6x-16)/(x^2+8x+12)=2, what is the value of 4x?
*Saturday, August 23, 2014 at 12:32pm*

**math**

35. If b is a positive integer less than 400 and more than 100, then how many integer pairs (a,b) satisfy the equation a/b=2/9?
*Saturday, August 23, 2014 at 12:28pm*

**math**

15. What is the mathematical average of number of weeks in a year, seasons in a year, and the number of days in January? A.36 B.33 C.32 D.31 E.29
*Saturday, August 23, 2014 at 12:17pm*

**Math**

Two salesman Emaan and Masood are paid a total of Rs 550 per week by their employer. If Emaan is paid 120 percent of the sum paid to Masood , how much is Masood paid per week.
*Saturday, August 23, 2014 at 11:12am*

**math**

the integral from -2 to 1 of 1/(x^2 +4x+13)
*Saturday, August 23, 2014 at 8:20am*

**Math**

Solve the equation: 4/3y+5/2y = 1
*Saturday, August 23, 2014 at 1:18am*

**math**

A flagpole is supported by a wire that is 5m long. The wire is pegged 2.5m from the foot of the pole. Find the height of the pole
*Saturday, August 23, 2014 at 12:44am*

**math**

Mason brought 18 red pencils to school. He brought 4 times as many erasers with him. How many erasers did Mason bring to school? Let M = how many erasers 18x4=M M=42
*Friday, August 22, 2014 at 6:31pm*

**math**

7. What area remains when the area of a square with side 3 is subtracted from the area of circle with radius 2?
*Friday, August 22, 2014 at 6:31pm*

**Math percentage (Money problem tax, discount)**

After 15% off, the book price becomes $26, what was the original price of the book? Round to the nearest cent. I had $29.9 but it was wrong :(
*Friday, August 22, 2014 at 6:30pm*

**math**

41. It takes Craig 20 minutes to type n pages. At these rates, how many hours will it take him to type 100 pages? All i know is 20/n
*Friday, August 22, 2014 at 6:27pm*

**math**

35. If b is positive integers less than 400 and more than 100, then how many integer pairs (a,b) satisfy the equation a/b=2/9?
*Friday, August 22, 2014 at 6:24pm*

**math**

24% of a number is 45, what is the number? Express your answer as a decimal.
*Friday, August 22, 2014 at 5:23pm*

**math**

calculate the upper limit for the definite integral from -2 to 2. oh x^2+1 dx with the partition P=-2,-1,0,1,2
*Friday, August 22, 2014 at 5:01pm*

**math**

If Britain and France had not adopted a policy of appeasement, would Adolf Hitler have been as successful as he was in overrunning Europe
*Friday, August 22, 2014 at 4:42pm*

**math mental math**

shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?
*Friday, August 22, 2014 at 3:56pm*

**math confused**

it took marty 42 min to write a book report. then he spent 18 min correcting this report. explain how can you use mental math to find how long marty spent on his report?
*Friday, August 22, 2014 at 3:51pm*

**math**

find d/dx of the integral from 1 to 2x of the (sqrt t^2+1)dt at x=sqrt2 the answer is 6. but i am not sure how to find d/dx. i tried taking the integral then doing that from 1 to 2x and then taking d/dx then plugging in sqrt2 for x but it was wrong
*Friday, August 22, 2014 at 3:43pm*

**MATH HELP **

shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?
*Friday, August 22, 2014 at 3:36pm*

**Related rates math in calculus**

A square sheet of cardboard has sides 18cm. Four equal portions are cut away from the corner and discard. The sides are then twiced up to form a restangular box. What are the dimension of the box formed that will have max volume?
*Friday, August 22, 2014 at 2:48pm*

**math**

which of the following is true about the function g(x)= 4x^2 - 3x^4? a)g is decreasing for x<1 b) g has a relative extreme value at (0,0) c)the graph of g is concave up for all x<0
*Friday, August 22, 2014 at 2:12pm*

**math**

20.Which of the following numbers could be described in the following way: an integer that is natural, rational and whole number? I think the answer is B A.0 B.1 C.2.33 D.-3 E.none of the above
*Friday, August 22, 2014 at 1:15pm*

**math**

15. What is the mathematical average of the number of weeks in a year, seasons in a year, and the number of days in January? This is what I know so far: I know there is 52 weeks in one year.
*Friday, August 22, 2014 at 1:03pm*

**math **

3. If Leah is 6 years older than Sue and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue? This what I have so far: L=s+6 J=L+5
*Friday, August 22, 2014 at 12:58pm*

**math**

48.Kate's class has between 40 and 51 students. Exactly of 75%of the students in her class have black book bags, and exactly 1/6 of students in her class do not have a book bag at all. How many students are in Kate's class?
*Friday, August 22, 2014 at 12:54pm*

**math**

solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.
*Friday, August 22, 2014 at 12:51pm*

**Math**

Write the numbers 1 to 9 in the circles so that each side of the square adds up to 12. (Hint:put 7 in the middle) Example: this is the grid u have to put the numbers in O------O-------O | |. | O------O-------O |. |. | O------O-------O
*Friday, August 22, 2014 at 12:35pm*

**Math**

I need to find expressions that will show how 5 x 37 can be rewritten using distributive property. 5 x 30 + 7 ---- My answer 5 x 30 + 5 x 7 5 x 40 - 5 x 7 5 x 40 - 5 x 3 *It can be more than one answer* 3u + 7v + 4u = 2v (I have to simplify) My answer is 7u + 9v because 4+3 ...
*Friday, August 22, 2014 at 12:07pm*

**Math**

What is the value of w? 5( 9 - 3) = w x 9 - 5 x 3 I think the answer is 6 because 9-3 equals 6. *it's not multiple choice*
*Friday, August 22, 2014 at 11:18am*

**math**

I need help with just two questions. Can you help me with them please? Thank you so much! 1. School Materials, Inc., packs 1-centimeter cubes in boxes that are 10 centimeters long, 12-centimeters wide, and 8 centimeters high. A carton holds 2 dozen boxes of cubes with no space...
*Friday, August 22, 2014 at 10:57am*

**Statistics**

The scores for math test #3 were normally distributed. If 15 students had a mean score of 74.8% and a standard deviation of 7.57, how many students scored above an 85%?
*Friday, August 22, 2014 at 3:43am*

**Calculus-Math**

Derivative of x^7/7x^3-45x+25
*Friday, August 22, 2014 at 1:09am*

**math**

One basket of oranges has one-third again as many oranges as a second basket. If the first basket has 3 more oranges than the second basket,how many has the first basket?
*Friday, August 22, 2014 at 12:53am*

**math **

Nancys birthdays is beteen aug 10 and aug 24. the date of her birthday is not an even number. the sum of the digits is 4. show how to find the date of nancys birthdat
*Thursday, August 21, 2014 at 11:13pm*

**math **

Nancys birthdays is beteen aug 10 and aug 27. the date of her birthday is not an even number. the sum of the digits is 4. show how to find the date of nancys birthdat
*Thursday, August 21, 2014 at 11:12pm*

**science & math**

for a ray of light incident normally on one face of the prism prace course of the ray measure the delta angle explain briefly do this for prism with angleA=60,45,90
*Thursday, August 21, 2014 at 10:34pm*

**math**

what is the base 10 of 469 3rd grade
*Thursday, August 21, 2014 at 10:03pm*

**Math**

How many 2-digit numbers have two different even numbers and odd numbers?
*Thursday, August 21, 2014 at 9:22pm*

**Math **

Write each percent as a fraction in simplest form. 2 2/5%=?
*Thursday, August 21, 2014 at 8:28pm*

**math **

Diana is going camping with her family. Their campsite is 3/4 mile away. They walk at a steady speed of 1 and 1/8 miles an hour. How many minutes will it take to get to the campsite
*Thursday, August 21, 2014 at 8:13pm*

**math**

35. If b is postive integers less than 400 and more than 100, then how many integer pairs (a,b) satisify the equation a/b=2/9?
*Thursday, August 21, 2014 at 7:42pm*

**math**

12. For what value of x will x and 120 have the same mean as 34 and 53?
*Thursday, August 21, 2014 at 7:39pm*

**math**

11.What is the slope of the line whose equation is 4y-6x+16=0?
*Thursday, August 21, 2014 at 7:38pm*

**math**

compare write >or< for 2,854,376 to 2,845,763
*Thursday, August 21, 2014 at 6:58pm*

**math**

The density of a solid or liquid material divided by the density of water is called the _______ of the material?
*Thursday, August 21, 2014 at 6:54pm*

**Math**

If 20% more than a number results in 28, what is the number? Express your answer as a fraction. Please help mates.
*Thursday, August 21, 2014 at 6:37pm*

**Math**

Whats the name of the number under the dividend? (Not the remainder)
*Thursday, August 21, 2014 at 5:36pm*

**Math**

Solve for w G=4x+1/2w+3/4 Can you show me the steps pls?
*Thursday, August 21, 2014 at 5:27pm*

**math**

why are 10.6 the same as 10.60?
*Thursday, August 21, 2014 at 4:56pm*

**math**

25. If the area of the base of a circular pool is 942 square yards. What is its radius?(use pie=3.14)
*Thursday, August 21, 2014 at 4:54pm*

**Math**

Using only one cut, how would you divide 7 pieces of licorice among 5 people so that each person gets the exact same amount of licorice without bending the licorice
*Thursday, August 21, 2014 at 4:36pm*

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