Friday
February 12, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
What is a volume of a sphere with a radius of 6 meters rounded to the nearest square meter? A. 905 m^3 B. 679 m^3 C. 452 m^3 D. 226 m^3 Is the answer C?
Thursday, January 7, 2016 by Awesomness

Not cheating-math
What is the surface area for a sphere with a meter of 4 meters rounded to the nearest square meter? A. 50 m^2 B. 101 m^2 C. 201 m^2 D. 268 m^2
Thursday, January 7, 2016 by Awesomness

math
A cone has the radius of 15 cm and a volume of 540 cm^3. What is the volume of a similar cone with a radius of 12 cm? A. 54 cm^3 B. 240 cm^3 C. 160 cm^3 D. 360 cm^3
Thursday, January 7, 2016 by Awesomness

Math
1. If the product of 5 and the sum of 10 and a certain number is equal to 15, what is the number? 2. The sum of two consecutive counting numbers divided by their positive difference is 9. Find the larger numbers.
Thursday, January 7, 2016 by Chekwube

fourth grade math
After making a dot plot, Julie asked Kevin what size shoe he wore. She then added together the total of all the shoe sizes including Kevin's. The total was 139. What size shoe does Kevin wear?
Thursday, January 7, 2016 by joshua

math
The perimeter of an isosceles trapezium is 134 cm and the bases are 54 cm and 30 cm in length of the nonparallel sides of the trapezium and its area.
Thursday, January 7, 2016 by PAWAN PATWA

math
A normal clock loses 3 minutes per hr and another clock gains 5 min per hr. How many hours after from now, both the clocks will show the correct time simultaneously?
Thursday, January 7, 2016 by aman

math
A hollow cylindrical iron pipe is of length 35 cm . It's outer and inner diameters are 10cm and 8cm respectively . Find the weight of the pipe if 1 cube centimeter of iron weights 7 gram
Thursday, January 7, 2016 by anu

math
Five years ago mother's age was square of her son. 10 years hence her age will be twice of her son's age. Find mother's age.
Thursday, January 7, 2016 by dimpu

Math
An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference.
Thursday, January 7, 2016 by Manpreet

math
find equation of the ellipse whose center is at the origin and foci f(2,2) f(-2,-2) and length of semi-major axis is square root of 8?
Thursday, January 7, 2016 by asratu

Math
1. An aircraft flies round a triangular course A, B and C. From A to B is 200km on a bearing of 115° and from B to C is 150km on a bearing of 230°. How long is the course from C to A and on what bearing must the aircraft fly? 2. AT is a tangent to the circle ABCD. ...
Thursday, January 7, 2016 by Emem

Math
If the markup is %50 and the selling price is $300, what is the initial price? Given answers: A $150 B $200 C $350 D $400 I asked help from my mother and she said the answer was A, $150, although from the formula R = C / ( 1 - G) (to calculate revenue R based on the cost C and...
Thursday, January 7, 2016 by anon

Math
Given the points (6,-3) (-4,2): Find the equation of a line that passes through the origin and is parallel to the line defined by the points. Please help me...thank u so much
Thursday, January 7, 2016 by Ck

Math
Write the equation of a line, in general form, that has a slope of 4/3 and a y-intercept of -5. Help me please...thx
Thursday, January 7, 2016 by Ck

Math
If P varies jointly with Q and R, and P=420 when Q is 3 and R is 7, what is the value of P when Q is 2 and R is 1? Help me please...thx
Thursday, January 7, 2016 by Ck

Math
If Z varies inversely with Y, and Z=25 when Y=4, what is the value of Z when Y=10? Help please thx
Thursday, January 7, 2016 by Ck

Math
In one hour, Ed used 2/5 of the time to complete his homework and 1/4 of the time to check his email. How much time did he spend completing his homework and checking email? Write your answer as a fraction. (Bonus: write the answer in minutes.)
Thursday, January 7, 2016 by Alianna

Math
There are three departments A,B and C. B produces 2 units from one unit of A, C produces 2 units from one unit of B. Both A and B sold half of there production to next department and half to the outsiders, then what is the total production of A?
Thursday, January 7, 2016 by Tehseen

Math
Ther are 16 teens and I want to give them each 5/8 of a sub sandwich. How many sub sandwiches do I need? Explain please?
Wednesday, January 6, 2016 by Jesus

Math
Denise is saving for a new bicycle. The bike cost $89 and she already has $54. What percent of the total cost of the bicycle has Denisa already earned (rounded to the nearest whole percent)
Wednesday, January 6, 2016 by Sheila

math
Opposite vertics of a rectangle have the coordinates (1,9) and (9,3) .what is the length of one of its diagonals?
Wednesday, January 6, 2016 by maribeth

Math
in still water, a speed boat travels 5 times faster than the current of the river. If the speed boat can travel 48 miles upstream and then back in 5 hours, find the rate of the current.
Wednesday, January 6, 2016 by Amy

Math
Solve by completing the square ( find the vertex only) K^2-18k+50=0 M^2+500m+100=0
Wednesday, January 6, 2016 by Anonymous

Math
how can i solve for y value with this equation f(x)=-8cos(pi/30(x-y))+8
Wednesday, January 6, 2016 by Chris

Math
I want to include a new 20m x 58m swimming pool in the athletic center. I am submitting a scale drawing on an 8.5" x 11" sheet of paper. Which scale should I use to create as large a drawing as possible on the paper? 1/8"= 1m 5/16"= 1m 3/16"= 1m 1/4&...
Wednesday, January 6, 2016 by Jeremy

Math
The finale score In a soccer game is 4-3. How many different scores were possible at half time?
Wednesday, January 6, 2016 by Jenna

Math
The telephone company wants to know how many different phone numbers are available for one area code. the only restrictions are on the prefixes, you can't start with a zero and you can't use 411, 611, 811, 911, or 555. how many different phone numbers are available?
Wednesday, January 6, 2016 by Kim

Math
Simplify 4(5x - (3 - 4y + 2x) + 3y) 12x + 28y - 12 93x + 82y - 35 -27x + 70y - 0 14x + 96y - 62 None of the above
Wednesday, January 6, 2016 by Kira Kosarin

Math
The parabola y=x^2 How can that equation be changed to shift the parabola three units to the left and five units down
Wednesday, January 6, 2016 by April

Math
Isaac is packing boxes into a carton that is 12 inches long 18 inches wide and 6 inches high. The boxes are 4 inches long 6 inches wide and 2 inches high. How many boxes will fit inside the carton?
Wednesday, January 6, 2016 by KS

math
rewrite each pair of unlike fractions as like fractions
Wednesday, January 6, 2016 by ethan

Math
A gift box is 9 inches long 12 inches wide and 2 inches high. What is the volume of the gift box
Wednesday, January 6, 2016 by LS

MAth GCF LCM
25 square floor mats in a gymnasium are connected together to form a large square area of 22500 cm². What is the length of the side of each square floor mat?
Wednesday, January 6, 2016 by Ken

Math
Could I please get some help for these 3 questions, apologies for asking so many, but they were the ones I was really unsure of: 1. Find an equation for the line tangent to y=ln(x) and that goes through the origin. I have no idea, the ln(x) stuff is confusing me. 2. derivative...
Wednesday, January 6, 2016 by Bob

Math
8—(-2)
Wednesday, January 6, 2016 by Brianna

Math
Sarah and Noah work at Read On Bookstore and get paid the same hourly wage
Wednesday, January 6, 2016 by Donna

algebra
what is the slope of the line that passes through the pair points (-7/2,-3)and (-5,5/2)? so far i did m=5/2-(-3) / -5-(-7/2)=11/2 / -3/2 i dont know the rest Im finished my math homework but not this question and class starts in 15 minutes please help me!!!!
Wednesday, January 6, 2016 by ava

Math
The price of gas went up by 0.5% last month. Suppose gas currently costs $2.44 a gallon. If the price of gas continues to increase at this rate. What will it cost one year from now? When will it cost $5 a gallon?
Wednesday, January 6, 2016 by April

math
On Monday, Carlos ran 1/8 of a mile. On Wednesday, he ran 5/6 of a mile. Carlos ran 3/8 of a mile on Friday. Which day did Carlos run farthest?
Wednesday, January 6, 2016 by Pamela

math
the kkk has 20 members and 10 are kids. how many kids are not in the kkk?
Wednesday, January 6, 2016 by big e

math
1& 1/7 + 2& 2/3 = = = = = = = = =
Wednesday, January 6, 2016 by Anonymous

Math
Carter drank 15.75 gallons of water in 4 weeks.he drank the same amount of water each day.about how many days altogether will it take him to drink 20 gallons?
Wednesday, January 6, 2016 by Anonymous

Math
How do you add fraction with whole numbers? Please answer fast.
Wednesday, January 6, 2016 by Steph

consumers,business studies,math lit,english,cat
Please help me on how to choose my career or which field my I follow
Wednesday, January 6, 2016 by mandla

Math
Can you please help me do it and understand it? The area of a rectangular piece of land is 280 square meters. If the length of the land was 5 meters less and the width was 1 meter more, the shape of the land would be a square. Part A: Write an equation to find the width (x) of...
Wednesday, January 6, 2016 by Anonymous

Math
What is 47 times 1330 equal
Wednesday, January 6, 2016 by Shaylea

Math!!!
Suppose Y is a continuous variable whose density gives the following probabilities: Pr{ Y < -3 } = 0.05 Pr{ -3 < Y < -1 } = 0.15 Pr{ -1 < Y < 0 } = 0.3 Pr{ 0 < Y < 1 } = 0.3 Pr{ 1 < Y < 3 } = 0.15 Pr{ Y > 3 } = 0.05 Compute Pr{ Y > 0 } = ???? ...
Wednesday, January 6, 2016 by help please!

math
1/4=?/8
Wednesday, January 6, 2016 by Linda

Math
Change the cos function into a sin function d(t)= -8cos (pi(t)/30)+8
Wednesday, January 6, 2016 by Chris

math
Explain how to graph information from the table
Wednesday, January 6, 2016 by kiki

math
A solid with at most one base cannot be which of the following? A. cone B. cube C. pyramid D. sphere Is the answer B?
Wednesday, January 6, 2016 by Awesomness

math
Which solid has one base that is a rectangle and four lateral surfaces that are triangles? A. triangular pyramid B. cone C. rectangular prism D. rectangular pyramid Is the answer C?
Wednesday, January 6, 2016 by Awesomness

Math
Mr Aslam spends 1/3 of his salary on personal affairs, then gives half of the remaining amount for household purpose and finally he invested 75% of final remaining amount for emergency. If he has 1000 in hand now, what is his total salary?
Wednesday, January 6, 2016 by Tehseen

Math
Two trains are travelling in opposite direction. one of these id 500m long having a speed of 120km/hr while other is 100m long having a speed of 60km/h. in what time do these cross each other?
Wednesday, January 6, 2016 by Tehseen

Math
If a train is running 4 minutes late and losing 4 seconds per minute. how many more minutes will it take for the train to running half an hour late?
Wednesday, January 6, 2016 by Tehseen

Math
One person can complete a piece of work in 8 days while other person can complete the same work in 4 days(if both works 10 hours per day). how many hours are required to complete the same work if both persons do it combined?
Wednesday, January 6, 2016 by Tehseen

Math
A sells an article to B at a profit of 20%, B sells the same to C at a profit of 10%. If C pay Rs 6600. what did it cost to A?
Wednesday, January 6, 2016 by Tehseen

Math
A man spends 15% of his money and after spending 60% of the remainder he has 4080. Find the money he had at beginning?
Wednesday, January 6, 2016 by Tehseen

math
I have a plant that measures 4 inches tall. I measured it two weeks later and it was 6 times its original height. Write an equation using the variable, p, to determine the height of the plant two weeks later.
Wednesday, January 6, 2016 by kathy

math
350 is 70% of what number? a 500 b 420 c 245***** d 280 am i right?
Wednesday, January 6, 2016 by jazzy

math
if jen runs 1/12 mole each day , how many days will it take for her to run 2/3?
Wednesday, January 6, 2016 by erica

math
the outer length and breadth of photo is 60cm * 40cm if the width of the frame is 2.5cm what is the length breadth of the picture that will fit
Wednesday, January 6, 2016 by sakshi

Math
The angles of elevation of the highest point of a building from two points S and T are 60 degree and 30 degree respectively,T is vertically above S and ST=10m.Calculate the height of the building above the level of S
Wednesday, January 6, 2016 by Sandra

Life Scie, Life Orientation, History ,Math's Lit
which Studies would i study if am doing these subject am in Grade 12
Wednesday, January 6, 2016 by inga

Math
Solve for d D(t)= -8cos (pi(t)/30)+8
Wednesday, January 6, 2016 by Chris

math
Roma spent 30% of the money she bought to the mall..If she spent 450.00 only,how much did she have with her when she went to the mall?
Wednesday, January 6, 2016 by sarah

math
The perimeter of a rectangle is 26cm. It's width is 5cm. What is the length?
Wednesday, January 6, 2016 by jfBBC j

Math
A square lot is to planted with santan plants all around. The side of the lot measures 10 meters. If plant will be planted 20cm apart, how many plants must be planted in all?
Wednesday, January 6, 2016 by Jillian

MATH
Write the equation of the line in slope-intercept and standard form whose graph passes through the given point and has the given slope: (3,-2), m = -3/2 THANK YOU :)
Wednesday, January 6, 2016 by Camz

math
The sum of the digit of a two digit number is13.The tens digit is 17 less than the spuare of the units digit.What is the original number?
Wednesday, January 6, 2016 by Anonymous jr

math
Four brothers in one family have a combined age of 39 years. Alan is three times collins age, bill is 6 years younger than Alan and don is a quarter of bills age. How old are each of the four browser
Wednesday, January 6, 2016 by Anonymous

math
how find the area og base 1 and base 2 og 2m 6m 7m
Wednesday, January 6, 2016 by marienicole

math
In a fruit basket 1/4 of the fruits are bananas and 3/8 are mangoes.Which are more the bananas or the mangoes? Solution
Wednesday, January 6, 2016 by jessica

Math of Investment
How long will it take for money to double itself at {0.55, m=2}
Wednesday, January 6, 2016 by Mira

math
the difference between the numerator and denominator of a fraction is 5. if 5 is added to its denominator then the fraction is decreased by one of its one fourth 1(1/4). find the value of fraction
Wednesday, January 6, 2016 by sarath

math
A right circular cone stands on a hemisphere. The base radius of the cone is equal to the radius of the hemisphere. If the base radius of the cone is 10 centimeters and its height is 15 centimeters,calculate the total volume of the solid.
Wednesday, January 6, 2016 by Dennis

Math
the terminal side of an angle in standard position coincides with the line x-2y=0, what is the cosine to the nearest ten-thousandth??? I am completely lost with this one
Wednesday, January 6, 2016 by Emma

Math
the terminal side of an angle in standard position coincides with the line x-2y=0 in quadrant 3, find cosine theta to the nearest ten-thousandth
Wednesday, January 6, 2016 by Emma

Math
The median of 8 numbers is less than zero. At most how many of the numbers are positive?
Wednesday, January 6, 2016 by Bob

Math 10
A carpenter needs to cut 50 cm pieces of wood for table legs. If he has 5 yards of wood, how many legs can he cut? Does he have any wood left over?
Tuesday, January 5, 2016 by Angeli

Math
a) The ratio of the lengths of the sides of two squares is 1:4. What is the ratio of the are of the two squares? b) The ratio of the lengths of the sides of two cubes is 2:5. What is the ratio of the volumes? I don't get these questions :/
Tuesday, January 5, 2016 by Anonymous

math
find the area of a parallelogram with base 5cm and altitude 4.2cm
Tuesday, January 5, 2016 by aananya

Math
How do you convert 6 3/8 to each rational number into the form a/b ?
Tuesday, January 5, 2016 by SP

Math
You have a total of 21 pens and pencils. You have 3 more pens than pencils. Write a system of linear equations that represent this situation. How many of each do you have?
Tuesday, January 5, 2016 by Carly

Math
What number must be added to each of 4, 7, 12 so that the resulting numbers form a geometric sequence?
Tuesday, January 5, 2016 by Ceej

Math-Fractions
Abby baked 5 cherry pies. She wants to share them equally among 8 of her neighbors. How much of a pie will each neighbor get?
Tuesday, January 5, 2016 by Lisa

Math
6 students share 5 small pies equally
Tuesday, January 5, 2016 by Lisa

math algebra 2 using inverse variables
x=3/4,y=28
Tuesday, January 5, 2016 by ervin

Math
Six neighbors share 4 pies equally. How much of a pie does each neighbor get?
Tuesday, January 5, 2016 by Lisa

math
joe was baking a cake . he added 3/4 cup of white sugar and 3/8 cup of brown sugar .how much sugar did he use in all
Tuesday, January 5, 2016 by khizra

7th grade math
Suppose 36 videos are added to a video collection that has 24 videos. What is the percentage of change. I got 50 percent....my mom says it's 150 percent. thanks!
Tuesday, January 5, 2016 by Peggy

7th grade math
A biology class has 28 students. Four of the students transferred out to take chemistry. Find the percent of change in the number of students in the biology class. I got 86 percent change is that right? Thank you...My mom says it's 14.3 %
Tuesday, January 5, 2016 by Peggy

7th grade math
Suppose 36 videos are added to a video collection that has 24 videos. What is the percent of change?
Tuesday, January 5, 2016 by Peggy

math 7th grade
If after the holiday season, the average number of customers per day at the Game Galaxy store decreased from 612 to 450. Find the percent of decrease thank you
Tuesday, January 5, 2016 by Peggy

Math
how do i solve for t and turn this equation into a sin function d(t)=-8cos(pi(t)/30)+8
Tuesday, January 5, 2016 by Chris

math
Mrs. Lum bought 6 rolls of pink ribbon and some rolls of yellow ribbon. he total cost of the rolls of ribbon was $27. Each roll cost $3. How many rolls of yellow ribbon did M. Lum buy?
Tuesday, January 5, 2016 by Tam

Math
Sylvie's age is 5 years less half of Katie's age. If sylvie is 11 years old, what is Katie's age?
Tuesday, January 5, 2016 by Kurtani

5th grade math
How do I solve this problem. Should I multiply. Ms. Hodge is baking cupcakes. She uses 3/4 cups of sugar for each batch of cupcakes. she bakes 5 batches of cupcakes. How many cups of sugar did she use
Tuesday, January 5, 2016 by Desmond

Math
1. Identify the sequence. 3,888, 216, 12, 2/3... a. arithmetic b. geometric c. neither d. both 2. Find the value of the variables in the table. x = e, 5, 7, 10, 12 y = 18, 23, f, 48, 58 a. f = 33; e = 4 b. e = 33; f = 4 c. f = 30; e = 2 d. e = 30; 5 = 2 3. Which is D = 2zv ...
Tuesday, January 5, 2016 by Harley Esther

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