Friday
December 2, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
The country hall charges a rental fee of $1000 and at least $3000 for food. Olivi is planning a class reunion. If she had chosen a buffet that costs $38.56 per person what is the minimum possible number of people who must attend to support the expense?
Saturday, October 29, 2016 by Sierra

PLease Help Math Sets
The 130 consumers were asked about their buying preferences concerning another product that is sold in the market under three labels. The results were 12 buy only those sold under label A. 24 buy only those sold under label B. 27 buy only those sold under label C. 14 buy only ...
Saturday, October 29, 2016 by Kal Jay

math
If a dark-haired mother and father have a particular type of gene than the probability that any child that they have will be light-haired is 0.25. What is the probability that all three children will have light hair? Thanks.
Saturday, October 29, 2016 by Anonymous

math
You are writing multiple choice test. Each question has 5 choices, only one of which is correct. You have no idea how to answer three questions. What is the probability that you will get all three of these questions correct if you guess the answers? Please help. I'm ...
Saturday, October 29, 2016 by Anonymous

math
Find the value of K so that x^2-5x+k=0 has one root equal to 4.
Saturday, October 29, 2016 by Math

math
At a sports festival half the number of people that chose basketball, chose football. The number of students who chose basketball was a quarter the number of students who chose baseball. There were 84 more students who chose baseball than soccer. How many chose basketball?
Saturday, October 29, 2016 by andrew

math
A defective clock is set correctly at 12 nn.However it registers only fifteen mins. for each hr.In how many hr.will it again register the correct time?
Saturday, October 29, 2016 by iselle

Math
A quadrilateral has the following vertices: A(-2;4) B(-4-2) C(4;-3) D(2;1).Determine the coordinates of the enlarged image if the scale factor = 2
Saturday, October 29, 2016 by Kwanele

Math
At a speed of 15 revolutions per min.,how long will it take a wheel of radius 14 in.,rolling on its edge to travel 440 ft.
Saturday, October 29, 2016 by Chase

Math
Prove that angle a is equal to angle E if angle D is equal to angle c Science I can't put the picture of the triangle I will try and explain it Two triangles that connect on one angle >< like this but a triangle and the angle in the middle ^ ( the angle that has the...
Saturday, October 29, 2016 by Ali

math
A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine working calculators. A customer buys five of these ...
Saturday, October 29, 2016 by Anonymous

math
Hospitals contain backup generators in case of power failure. A hospital has two backup generators each of which has a 2% probability of failure. Only one generator is needed to supply emergency power. What is the probability that the backup system will work in the case of a ...
Saturday, October 29, 2016 by Anonymous

math
each day Ashley practices free throws. The first day she takes 12 shots, and every day after she takes 2 more than the previous day. How many free throws will she shoot on the 6th day. Thank you. =)
Saturday, October 29, 2016 by Aleah

Math
A sausage sample was found to contain 65% moisture, based on fresh weight. The sausage was dried in an oven until its moisture content was 10%. A 2.0 g portion of the dried sausage was extracted with the Soxhlet method to determine the amount of crude fat. A clean Soxhlet ...
Saturday, October 29, 2016 by James

Math's
Out of 2 dozen orenges.16 were eaten. what fraction of the oranges were eaten?
Saturday, October 29, 2016 by Shiva

Math
A defective clock is set correctly at 12 nn.However it registers only fifteen mins. for each hr.In how many hr.will it again register the correct time?
Saturday, October 29, 2016 by Chase

math
Truck A can carry 70% more dirt than truck B in the same amount of time. Together both trucks take 6 hours to finish a job. Working at this rate, how many hours would it take truck B to finish the same job?
Saturday, October 29, 2016 by Oben

math
i have only 8 digits and each one is the same. The number that follows me has 9 digits. Who am i?
Saturday, October 29, 2016 by jabulile

Math probability
There are 6 gray socks,8 brown socks and 2 blue socks in a drawer.If you remove 2 socks without looking,what is the probability that they are both blue?
Saturday, October 29, 2016 by Chase

math
the acceleration of an object varies directly as the force f exerted and inversely as its mass m. if the constant of variation is 1 find the acceleration in meters/second^ of a 10 kg object exerting force of 10 newtons
Saturday, October 29, 2016 by iramae

Math Help
Let A={2, 4, 6, 8} and B={2, 3, 5, 7, 9}. Compute n(A). ​ 17 14 5 8 4 1 Please help thank you
Saturday, October 29, 2016 by Kal Jay

math
Julia paddleboat travels 2km/h in stilll water. The boat is paddled 4km down stream in the same time it takes to go 1km upstream what is the speed of the river. Please help and show all work I suck at story problems haha
Saturday, October 29, 2016 by madison

math
A total of 600 tickets were sold for the school play. They were either adult tickets or student tickets. There were 50 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Friday, October 28, 2016 by gena

math
how many squares are there in a 3x3 geoboard? how many rectangles?
Friday, October 28, 2016 by jose

Math
1/6 is the sum of two unit fractions. how may pairs of unit fractions will equal 1/6?
Friday, October 28, 2016 by Jason

Math
In a survey of 380 households regarding the ownership of VCRs and DVD players, the following data was obtained: ​ 350 households own one or more VCRs. ​180 households own one or more VCRs and one or more DVD players. ​13 households do not own a VCR or a DVD ...
Friday, October 28, 2016 by Kal Jay

(Math) PLZ CHECK ANSWERS
1. Which number is a solution of the inequality? 10.6<b A)-18 B)-9 C)7 D)14*** 2. Which number is a solution of the inequality? y+2>8 A)-5 B)-6 C)6 D)7*** 3. Which number is a solution of the inequality? 6>z(10-z) A)0 B)1 C)2 D)3*** 4. What are all the subsets of the ...
Friday, October 28, 2016 by Katrina

Math practice test
Which point is located at (-3, -2)
Friday, October 28, 2016 by Maytag

Math
450 children take part in an art competition if there are 25% more boys than girls how many more boys than girls are there
Friday, October 28, 2016 by Ally

Math Derivative
Find derivative of f(x)=g(h(x)) Would the derivative be something like: g'(h(x))*h'(x) ??
Friday, October 28, 2016 by Ray

Math (Confused)
How many international direct-dialing numbers are possible if each number consists of a four-digit area code (the first digit of which must be nonzero) and a five-digit telephone numbers (the first digit must be nonzero)? a. 567,000,000 b. 486,000,000 c. 1,053,000,000 d. 729,...
Friday, October 28, 2016 by Kal Jay

Math (Finding Vertical Tangent)
List all x values where the graph of f(x) has vertical tangents goo.gl/photos/iPu1SHA8yyBFTcZj6
Friday, October 28, 2016 by Ray

math
It takes 18 electricians 35 days to wire a new housing subdivision. How many days would 28 electricians require to do the same job?
Friday, October 28, 2016 by allie

Math
I have a dash of sugar and I need to add flour with a 1:10 weight ratio of sugar to flour so how much flour do I need
Friday, October 28, 2016 by Rachel

Math
It take sally 2.5 hours to clean her floor. How much of the floor will have sally cleaned after only 1 hour. 1 hour = 60 min 2.5 hours =150min 60/150 =.4 so sally can clean .4 of 40% of her floor at 1 hour.
Friday, October 28, 2016 by Wax

math
If two dice are rolled and their faces noted, find each of the following probabilities: a) the sum of the two dice is 8 b) both dice show even numbers c) the sum of the two dice is 8 OR both dice show even numbers d) the sum of the numbers is 7, given that at least one die ...
Friday, October 28, 2016 by Anonymous

math
Hospitals contain backup generators in case of power failure. A hospital has two backup generators each of which has a 2% probability of failure. Only one generator is needed to supply emergency power. What is the probability that the backup system will work in the case of a ...
Friday, October 28, 2016 by Anonymous

math
A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of twelve calculators is sent out containing three defective calculators and nine working calculators. A customer buys five of these ...
Friday, October 28, 2016 by Anonymous

math
Six slips of paper, with a different digit from 1 to 6 printed on each, are placed in a box. The papers are well mixed. One slip is drawn and replaced. The papers are well mixed, and a second slip is drawn. Find the probability of each of the following: a) the first is marked ...
Friday, October 28, 2016 by Anonymous

math
There are 5 black mice and 5 white mice available for an experiment. A random selection is made from the set of ten mice. What is the probability that two black mice and one white mouse will be selected? Thanks
Friday, October 28, 2016 by Anonymous

Math
Write the ratio in simplest form. 50:10 A.25:5 B.10:2 C. 5:1 D.1:5 Is the answer C?
Friday, October 28, 2016 by Noah

Math
A glass containing 250 mL of 80% iodine solution tips over spelling part of its contents. This subsequently replaced by an amount from a mixture of 40% iodine. If a 72% solution is resulted, how much was spilled?
Friday, October 28, 2016 by Math

math
Destiny buys 4 notebooks for $5.20. What is the cost per notebook?
Friday, October 28, 2016 by arlette

math
You are hired by your local member of parliament to conduct a survey on unemployment, crime, taxes and mail delivery. You make up a question on each topic for your survey sheet. If the questions are arranged in random order on the sheet, find the probability of each of the ...
Friday, October 28, 2016 by Anonymous

math
Your brother is saving labels from soup cans. He removes the labels from three cans of pea soup, five cans of vegetable soup and four cans of onion soup, and does not indicate the contents of the twelve cans after removing the labels. You need two cans of onion soup to make ...
Friday, October 28, 2016 by Anonymous

Math
How is an inequality different from an equation? Give a real-world scenario in which you would write an inequality rather than an equation. Sky has $25. She wants to buy two new Coats for her and a friend. Sky needs to know the average price so she doesn't spend more than...
Friday, October 28, 2016 by Embershy

Math
What is 23/40 minus 22/30? use benchmark
Friday, October 28, 2016 by Princess Flower

Math
I really need help like, in 5 minutes please!! its this: 23/40 minus 11/30
Friday, October 28, 2016 by Princess Flower

Math
An employee's annual salary was increased from $22,464.00 to $24,710.40 last year.If it is increased by the same percent this year,what will be the employee's salary? Thanks!
Friday, October 28, 2016 by Sandy

Math
How many kg of pure salt must be added to 8 kg of a 30% solution to obtain a 35% soltution?
Friday, October 28, 2016 by Math

math
(Evaluate) -5g - 6 for g=-2 A)4 B)16 C)10 D)-13
Friday, October 28, 2016 by Anonymous

math
2[34+]4x98
Friday, October 28, 2016 by vannessa

easy Math
John has 48 square centimeter tiles he wants to use to create a mosaic. He wants the mosaic to be rectangular with a length that is 2 centimeters longer than the width. Which equation could John solve to find w, the greatest width in centimeters he can use for the mosaic? w(w...
Friday, October 28, 2016 by HELP PLZ

easy math
What value of c makes x^2 + 6x + c a perfect square trinomial? 3 6 9 12
Friday, October 28, 2016 by Don

easy Math
A soccer ball is kicked upward from a hill and then falls to the ground. The height, in feet, of the ball after t sec is modeled by the function h(t) = –16t2 + 26t +12. What is the initial height of the ball? –16 ft –12 ft 12 ft 22 ft
Friday, October 28, 2016 by Don

math
Suppose 2% of the items made in a factory are defected. Find the probability that no defective in a sample of 50.
Friday, October 28, 2016 by shubham

math
A manufacturer of calculators would like to separate defective calculators from calculators that are acceptable. Through an error, a shipment of 12 calculators is sent out containing 3 defective calculators and 9 working calculators. A customer buys 5 of these calculators ...
Friday, October 28, 2016 by Jenna

math
rearrange A = 2 pi r (r+h) to make h the subject (cylinder)
Friday, October 28, 2016 by melanie

math
2x^2 - 5 y = _______ 3x^2 - 4
Friday, October 28, 2016 by melanie

math
I am a number between 80 and 90 if you remove one from me I become a multiple of 5. If you add 2 to me I become a multiple of 8 who am I
Friday, October 28, 2016 by rola

Math
12%+17%+3%=0.144612 The correct answer is 32% Please break it down to me where I can understand it. Thanks
Friday, October 28, 2016 by Sandy

Math
Dan wants to cover a Shelf with shelf liner the Shelf is 4 feet wide and 2/3 feet deep what is the area of the Shelf
Friday, October 28, 2016 by Tamika

Math
If one be added to the numerator of a fraction it reduces to 1/5 if one be taken from the denomenator it reduces to 1/7 require the fraction
Friday, October 28, 2016 by Anonymous

math
Tom used 5/8 yard of ribbon to tie weights on the tail of his kite. He cut the length of ribbon in equal pieces that were 1/12 yard long. How many pieces, each 1/12 yard long did Tom cut from the 5/8 yard ribbon?
Friday, October 28, 2016 by Thomas

math
3C minus 243
Friday, October 28, 2016 by suzy

Math
An octopus can swim v km/h in still water. When the octopus swims against a current of 5km/h, its speed is decreased by 5km/h. When it swims with a current of 5km/h, its speed it increased by 5km/h. It takes Joey the Octopus the same amount of time to swim 10km with the ...
Friday, October 28, 2016 by jesse

Math (Derivative)
Compute derivative using the definition of the derivative. f(x)=1+1/x^2 1+ 1/(x+h)^2 - (1+ 1/(x^2)) ------ divide by h and multiply by reciprocal 1/h(x+h)^2 - 1/hx^2 Next I expanded it and got this messy huge number and multiply the bottom of each other after cancelling some ...
Friday, October 28, 2016 by Ray

Math
You must scuba dive to the entrance of your room at Jules’ Undersea Lodge in Key Largo, Florida. The diver is 1 foot deeper than 2/3 of the elevation of the entrance. What is the elevation of the entrance?
Friday, October 28, 2016 by vivis

math
If Aaron split 01 pencil between 7 people in his class and kept the left overs, how many pencils did each classmate get?
Thursday, October 27, 2016 by fardosa

math
Crackers come in packages of 7. Ethan ate 82 crackers. How many whole boxes did he eat and how many crackers does he have left?
Thursday, October 27, 2016 by fardosa

Math
PLEASE PLEASE HELP ME WITH THESE 2 PROBLEMS STEP BY STEP AND SHOW WORK! z/12=9 what is the value of z show how you found it. 5 x g= 230 what is the value of g show how you found it. PLEASE I REALLY NEED HELP!!!
Thursday, October 27, 2016 by Connections Academy 6th grade

math check answers
you invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13
Thursday, October 27, 2016 by Anonymous

Math
Bob the builder bought 4.4 pounds of nails for $24.64. How much does one pound of nail cost?
Thursday, October 27, 2016 by Monroe

Math
Have trouble with math mixtures problem!! AT a family reunion, the average age of all those present was 45 years. If the two oldest people, aged 86 and 84 years, had not been present, the average age would have been 41 years. How many peoeple were at the reunion.
Thursday, October 27, 2016 by Jess

Math
What is 51 tens and 9 ones
Thursday, October 27, 2016 by Anonymous

math
A ball is thrown with velocity of v feet per second, at an angle of theta with the horizontal.find the vertical and horizontal components of the velocity.(let v=70 and angle theta=36)
Thursday, October 27, 2016 by lovi

Math
One bag of m&m's weighs 3 1/2 pounds. If found friends want to share the bag of candy equally, how much would each friend get?
Thursday, October 27, 2016 by Monroe

Math
Lorraine is placing tiles in rows.In each succeeding row,she doubles the number of tiles.The ninth row has 768 tiles.How many tiles did Lorraine use in the first row?
Thursday, October 27, 2016 by Chase

Math
Implicit Differentiation for (x^2+y^2)^6
Thursday, October 27, 2016 by Steve

math
Jessica had $15. She bought 3 apples for x dollars each. Levi had $27 and bought 5 apples for x dollars each. Which expression represents how much money both Jessica and Levi have left altogether? Select one: 27 – 5x 42 – 8x 12 – 2x 39 – 3x I got 12-2x
Thursday, October 27, 2016 by Forg

math
During a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of the remaining route. She runs the rest of the route. If she runs 3,600 meters, find the total distance of the triathlon route.
Thursday, October 27, 2016 by Lillianna

math check answers
You invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13
Thursday, October 27, 2016 by Anonymous

Math
Lenora is using the recipe of 1/3 cup vegetable oil, 1/4 cup vinegar, salt and pepper to taste. She wants to make 20 batches of the recipe. How much vegetable oil and how much vinegar does she need?
Thursday, October 27, 2016 by Arianna

Math
Emily bought a pie. Emily ate 2/3 of the pie and Ryan ate 1/5 of the pie. How much of the original pie is left?
Thursday, October 27, 2016 by Juan

Math
The table below shows the melting points of four elements. Which element has the highest melting point.
Thursday, October 27, 2016 by Siara

math
The population of a town in 2000 was 88000. The population increase by 20% in 2010.find the population in 2010!
Thursday, October 27, 2016 by enock

math
Whole numbers that go one after another are called consecutive numbers. If you add 4 consecutive numbers, you get the smallest of these numbers multiplied by 5. What is this smallest number?
Thursday, October 27, 2016 by girl

math
If I add to my number a number that is 17 more than twice my number, the sum will be 65. What is my number?
Thursday, October 27, 2016 by girl

math
The square base of the Great Pyramid of Khufu has a length of approximately 1.476 * 10^3 feet. Its height is about 2.17*10^2 feet. Find the approximate volume of the pyramid. Write your answer in scientific notation. Round the coefficient to the nearest tenth.
Thursday, October 27, 2016 by scientific notation plz help

Math (Derivative)
Computer the derivative of f(x)=x-(1/x) for x>0 using the definition of the derivative.
Thursday, October 27, 2016 by Ray

math
Surface area of a composite object. A cone with a slant height of 8.9cm and a radius of 4cm. The cones base is attached on top of a rectangular prism whose length is 41cm, width is 20cm and height is 40cm. It is attached with a hemisphere whose radius is 4cm. Find the surface ...
Thursday, October 27, 2016 by Maryam

Math
Compare partial products and regrouping. Describe how the methods are alike and different. ♡♡♡♡?????????
Thursday, October 27, 2016 by Lena

Math
Suzanne bought 50 apples at the apple orchard. She bought 4 times as many red apples as green apples. How many more red apples than green apples did Suzanne buy?
Thursday, October 27, 2016 by Maria

Math m
The train traveled 250 mi in 2 h . If it traveled at the same rate of speed, how long would it take the train to travel 600 mi?
Thursday, October 27, 2016 by Anonymous

math
Ms.Nikkel wants to divide her class of 23 students into 4 equal teams.Is this reasonable?Why or why not
Thursday, October 27, 2016 by sophia

math
a woman is four times older than her daughter five years ago the product of their age was 175 find their present age
Thursday, October 27, 2016 by Anonymous

Math (Limits)
lim ln(y-1) y->1+ The answer is negative infinity but how do I show the logic of proving that it's negative infinity? I plugged in "1" to the function and got ln(0) which is obviously impossible? Thanks in advance
Thursday, October 27, 2016 by Ray

Math
I am having trouble with this math Mixture problem. shirley has a quantity of yellow tulip bulbs worth .10 cents each, pink tulip bulbs worth .20 cents each and red tulip bulbs worth .25 cents each. In her total collection of bulbs, there are five more pink bulbs than yellow ...
Thursday, October 27, 2016 by Jess

Math
A hemispherical tank has a diameter 10cm is fixed by water issuing from a pipe of radius 20cm at 2m per second. Calculate currently to 3.s.f the time in mind Tessa it take to fixed the tank.
Thursday, October 27, 2016 by Sam

Math
Which of the images above represent a proof of the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the Pythagorean Theorem. Images are in the comments >links<
Thursday, October 27, 2016 by Mike

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