Thursday
January 19, 2017

# Homework Help: Math

## Recent Math Questions

Pure Math
How to plot a steam and leaf for the following data 0 0 11 140 152 253 257 309 392 419 541 644 751 770 810 897 1295 1340 1419 1482 1515 1719 1763 1891 2005 2127 2631 2988 3686 6726 11465 12917 14701 regards
Saturday, November 21, 2015 by Steam and Leaf Plot

Math
How do you divide 1248 by 8?
Saturday, November 21, 2015 by Lilly

Math
Need help please. The reciprocal of .125 is what number?
Saturday, November 21, 2015 by Lisa

math
Saturday, November 21, 2015 by to Ms.Sue

math
The length, breadth and height of a closed box are respectively 2m, 1.5m and 0.8m. Find the total area of canvas required to cover it-up. Find also the cost of canvas if 1sq m of canvas costs Rs. 30. A rectangular box without lid is to be made by thin sheet of metal. Find the ...
Saturday, November 21, 2015 by rohan

Math
URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this question even ...
Saturday, November 21, 2015 by Katie

Math word problem
17 1/9 decreased by what number is 5 2/3? This is the answer I have 11 4/9. Is this correct.
Saturday, November 21, 2015 by Ray

Math
What math word does these letters spell O,O,E,R,N,F,O,P,S,E,P,T,W,X
Saturday, November 21, 2015 by .

Math
Forty-five percent of a large class of students in Statistics are females. Suppose 28 students are selected at random from the class. Use a normal approximation with continuity correction to calculate the probability that the number of males in the sample is at least 12 but ...
Saturday, November 21, 2015 by Aarathi

Math
Calculate the reduced paid-up insurance for Lee Chin, age 42, who purchased a $100,000 straight life policy. At the end of year 20, Lee stopped paying premiums. (Use Table 20.2). (Omit the "$" sign in your response.) What is the reduced paid-up insurance? What am I ...
Saturday, November 21, 2015 by Uteryu

Math
A man who is 6.2 ft tall casts a shadow that is 13.6 ft long. Find the height of a petrified stump that casts a 16.9 ft shadow.
Saturday, November 21, 2015 by Carlos

math
Given that sin x + sin y = a and cos x + cos y =a, where a not equal to 0, express sin x + cos x in terms of a. attemp: sin x = a - sin y cos x = a - cos y sin x + cos x = 2A - (sin y + cos y)
Saturday, November 21, 2015 by Chia LC

Math
Log3 (4x+1) log3(13x-5)=2
Saturday, November 21, 2015 by Anonymous

math
An investor invested 80 percent of the money at the rate of 10 percent p.a for 2 years. Find the amount of both the investments if the diffrence between the simple interests earned is Rs 3300
Saturday, November 21, 2015 by pallav

Math 1 question plz help ASAP
A bah of oranges weighs 5 1/4. How much does 1 1/2 weigh?(that's the question my question is do we add, subtract, multiply or divide plzzzzzzzzz help meeeeee im new to this website =)
Saturday, November 21, 2015 by Debra Grimes

math
How many of the 2-digit numbers, that can be formed by using the digits 1,2,3,.......,9 without repeating any digit, are divisible by4? If 2 boys and 2 girls are to be arranged in a row so that the girls are not next to each other, how many possible arrangements are there? A ...
Saturday, November 21, 2015 by adam

math
The average marks of 14 students was 71. It was later found that the marks of one of the students has been wrongly entered as 42 instead of 56 and of another as 74 instead of 32. What is the correct average? Average age of seven persons in a group is 30 years, the average age ...
Saturday, November 21, 2015 by adam

math
Find two positive real numbers x and y such that they add to 120 and x^(2)y is as large as possible
Saturday, November 21, 2015 by Raj

math
Two truck drivers leave the same rest stop at the same time to travel in opposite directions.One travel at an average rate of 52 mph and the other average 56 mph.In how many hours will they be 72 miles apart
Friday, November 20, 2015 by nisha

Math
A principal earns 7% per year simple interest. How long will it take for the future value to quadruple?
Friday, November 20, 2015 by Merry

Math
Simplify and express in scientific notation (2.75x10^9)(0.5x10^5) (2.75x0.5)(10^9Ã—10^5) =1.375Ã—10^14
Friday, November 20, 2015 by Cody

Math
Given that an equation of the form f(x) = x^n has n solutions, and that the solutions are equally spaced at a given radius in the complex plane, discuss why complex solutions must occur in conjugate pairs when .
Friday, November 20, 2015 by April

Math
A football is punted. Its height, H metres is given by the quadratic relation with equation: H = -5t2 + 21t, where t is the time in seconds after the punt. I tried to do this question on a test but I just ran out of time How is the easiest and quickest way to do this? ...
Friday, November 20, 2015 by Fred

Math
what are the inputs of the following funtions {(-3,2),(-4,2),(8,3),(7,1)}
Friday, November 20, 2015 by Taylor

math
18 mil at .25 starting the meter at $2.50 is how much Friday, November 20, 2015 by monica vargas Math The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of about 10. Suppose that 16 individuals are randomly chosen. Is it appropriate to use the normal approximation for the sampling ... Friday, November 20, 2015 by Brandy math packet Solve this equation for x. 0.5(5-7x) = 8-(4x+6) Friday, November 20, 2015 by charlie math A supervisor finds the mean number of miles that the employees in a department live from work. He finds mc022-1.jpg and mc022-2.jpg. Which statement must be true? Friday, November 20, 2015 by kiki Math The question is: The area of a rectangle is given by the expression 8x+44y. Length is 2x+11y. What is width? I answered 4x & 4y, yet that was wrong. Can you help explain why? Thanks Friday, November 20, 2015 by Kyle MATH ANSWER HELP 1. There are four kinds of road signs in a certain town. The number of each kind is shown. What is the ratio of the number of school signs to the number of stop signs? signs (1 point) 9 to 10 10:9 ten over twenty-four 9:24 2. Which ratio is equivalent to four over sixteen? (1 ... Friday, November 20, 2015 by PINKIE PIE Math 1350 Mrs. Jones has a prime number of children in her class. When she divides the children into teams of 7, one team has 6. When she divides the children into teams of 6, one team has 5. How many children are in the class? Friday, November 20, 2015 by Ne Ne Math 1350 About eleven-twelveths of a state park is covered by trees, one-eighteenth is covered by a lake, and the rest is covered by open fields. What part of the state park is open fields? Friday, November 20, 2015 by Ne Ne Math 1350 Mrs. Smith's classroom can hold at the most 30 students. Her first period class had 4 boys for every 3 girls. When 3 boys and 1 girl were added to the class, the new ratio became 3 boys to 2 girls. How many total students are now in the class? Show all work and explain the... Friday, November 20, 2015 by Ne Ne math Larry borrowed$800.00 at 6% for one in a half years?Explain and solve the problem.
Friday, November 20, 2015 by Eilundra

math
The cost price of 8 books is equal to the selling price of 6 books. Find the gain or loss per cent. Ashis purchases eggs at the rate of Rs 90 for 150 eggs and sells them at Rs 85 per hundred. Find his gain or loss per cent. Pls pls help***
Friday, November 20, 2015 by adam

math
A sum is invested at compound interest payable annually. The interest in two successive years was Rs 900 and Rs 981. Find the sum. If the sum of all internal angles and sum of all external angles of a regular polygon are equal, then the number of sides of the polygon is? Pls ...
Friday, November 20, 2015 by adam

math
A low land, 48m long and 31.5 m broad is raised to 6.5 dm. For this, earth is removed from a cuboidal hole, 27 m long and 18.2 m broad, dug by the side of the land. The depth of the hole will be? A man rows 12 km in 5 hrs against the stream, the speed of current being 4 kmph. ...
Friday, November 20, 2015 by adam

Please help I'm failing Which of the following is a rational number Pie Square root 3 Square root 2 1.3*****
Friday, November 20, 2015 by Mysterydude

math
for every 12 people crossing the street, 7 of them used the pedestrian lane and the rest did not. if 48 people crossed the street, how many did not cross in the pedestrian lane? Hi Steve, the choices of answers to this question are the following: a)28; b)24; c)36; d)41. your ...
Friday, November 20, 2015 by tante

math
Hi Dan, kindly provide detail equation how to arrived to your answer. 21 boys, 21 girls. 7:5 - 6 girsl is 21 boys to 15 girls [think -6]
Friday, November 20, 2015 by tante

math
Joseph used the problem-solving strategy Work Backward to solve the inequality 2n+5<13. Shawnee solved the inequality using the algebraic method. Compare the two methods. THANK YOU!
Friday, November 20, 2015 by kimie

math
Is there any value of x with the property that x < x - 1 ? Explain your reasoning. THANK YOU!
Friday, November 20, 2015 by kimie

Math
Rachel will make juice drink by mixing sugar, pineapple juice, and water in the ratio of 2:5:7 cups. If she uses 20 cups of pineapple juice, she has to mix ____ cups of sugar and ____ cups of water to the juice
Friday, November 20, 2015 by Ceena

Math
Over the past week, 34 baby boys were born at the hospital. This was 54% of all babies born. How many girls were born over the past week?
Friday, November 20, 2015 by Ken

math
Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 3.5%/year compounded monthly. If the future value of the annuity after 12 years is $50,000, what was the size of each payment? (Round your answer to the nearest cent.) Friday, November 20, 2015 by phalyn math 5th grade Victoria has 2 pounds of flour she uses 2/5 of flour for pizza and 3/10 of the flour for bread. Find the weight of the flour she has left. Express in decimal form. I worked on this and the answer I came up with was 19.2 lbs left? Thursday, November 19, 2015 by mary math a bakery sells bagels for$0.85 each an muffins for $1.10 each the bakery hopes to earn$400 each day from these sales. Write an equation that represents the total amount the bakery would like to earn selling bagels and muffins each day. (sorry I have no idea how to do this...
Thursday, November 19, 2015 by Hannah

math
for every 12 people crossing the street, 7 of them used the pedestrian lane and the rest did not. if 48 people crossed the street, how many did not cross in the pedestrian lane?
Thursday, November 19, 2015 by tante

math
the ratio of boys to girls in the gym is 7:5. when 6 more girls enter the gym, the ratio of boys to girls becomes even. how many boys and girls now in the gym?
Thursday, November 19, 2015 by tante

Math
Samantha wants to find the height of a pine tree in her yard. She measures the height of the mailbox at 3 feet and its shadow at 4.8 feet. Then she measures the shadow of the tree at 56 feet. How tall is the tree?
Thursday, November 19, 2015 by Aaron

Math
The quantity of p + 4 divided by 2
Thursday, November 19, 2015 by Israel

Math: Geometry
The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid. [asy] unitsize(1 cm); pair A, B, C, D; A = (1,2); B = (3,2); C = (4,0); D = (0,0); draw(A--B--C--D--cycle); draw(B--D...
Thursday, November 19, 2015 by I see you have graph paper. You must be plotting something.

math
Compute the hurdle rate above based on the following.1. Note payable bank $2,000,000.00 with rate of 7.5%, The company has a tax rate of 30%.2. Bank Mortgage Loan$1,000,000.00 with rate of 6% The company has a tax rate of 30%.3. Preferred stock $750,000.00 with coupon rate 10... Thursday, November 19, 2015 by Terry math 5 lbs of walnuts equally divided into containers. each holds 5/8 of a pound . how many containers will be filled Thursday, November 19, 2015 by klb math How do you subtract radicals? Example wise. Thursday, November 19, 2015 by khloe johnsonn math When xÂ¡Ãº0 cosec(x) - cot (x)/ x =? Thursday, November 19, 2015 by aamir Math The ratio of the lengths of the sides of a triangle is 2:4:5. The largest side is 33" longer than the small side. What is the perimeter? I don't know how to start it help please Thursday, November 19, 2015 by Anonymous Business Math Myerson borrowed$8,500 at 9% ordinary interest for 200 days. After 120 days, he made a partial payment of $4,000. What is the final amount due on the loan? Thursday, November 19, 2015 by Ahmad Conrady Math Bev has 25 books in her bookshelf that are either mystery or romance. If r represents the number of romance nooks she has, write an expression in terms of r that represent the number of mystery books she has. Thursday, November 19, 2015 by Gina Causley Math I need help understanding how to identify the transformations when the quadratic is in factored form. f(x) = (x+3)(x-1) Thanks... Thursday, November 19, 2015 by Brandi math fractions Sherry spent 1/5 of her money on school supplies and 3/8 of the remainder on a CD player. She had$25 left. How much money did she have at first? do not use algebra
Thursday, November 19, 2015 by daniel

Math
A board is 12.5 feet long. I cut 2 pieces that are 1.875 feet long and make 6 ramps with it. How much feet of board is left over?
Thursday, November 19, 2015 by Corrine

MATH
trying to work equation problems and my answer is different from answer in textbook. 12/x = -3 and 24=120/x 1. 12/x(12)= -3(12), x= -36 textbook has -4 2. 24(120)= 120/x(120), x = 2880 textbook has 5 What am I doing wrong???
Thursday, November 19, 2015 by Amy

Math
For a game, a school bought 100 pizzas. Some were pepperoni and some were cheese. There are 4 times as many pepperoni pizzas as cheese pizzas. How many cheese pizzas did the school buy?
Thursday, November 19, 2015 by Sammy Taylor

Math
George and Cindy are saving for bicycles. Cindy saved $10 less than twice as much as George saved. Together, they have saved$140. How much did each of them save?
Thursday, November 19, 2015 by Sammy Taylor

Math
Jack and jill both bought new coats. Jacks coat cost $8 less than Jills. If the total costs of of their coats was$112, how much did each coat cost?
Thursday, November 19, 2015 by Sammy Taylor

Math
In a table of random digits, each digit is to occur with a probability of 0.1. a) A student examines a list of 200 random digits and counts only eleven 4â€™s and thus claims that the table is not really random. Explain the error in the studentâ€™...
Thursday, November 19, 2015 by Anonymous

math
A baseball player's batting average is calculated by dividing the number of times a player got a hit by the total number of times the player was at bat. It is expressed as a decimal rounded to three decimal places. After the first ten games of the season,Sam had 12 hits ...
Thursday, November 19, 2015 by Irene Wu

math
Nata spent $28.00 on 2 DVDs. At this rate now much would she spent on 5 DVDs cost? Thursday, November 19, 2015 by Anonymous MATH 5a2b â€“ 13ab + 7a3 â€“ 4b how many degrees, and classify the term Thursday, November 19, 2015 by Help URGENT I NEED IT NOW! MATH 5a2b â€“ 13ab + 7a3 â€“ 4b, in decending order Thursday, November 19, 2015 by Help URGENT I NEED IT NOW! math rounding number to the underlined digit 8,464 the 8 is underlined my answer is 8,000 is that correct? Thursday, November 19, 2015 by mike Algebra 2 (Math) Solve by the system of equations by substitution. x + 2y + z = 14 y = z + 1 x = -3z + 6 Anyone able to help me with this? I've been stuck on it all day and can't seem to solve it, it doesn't make any sense to me. Thursday, November 19, 2015 by Lucas Math 1. What compromise did states reach for the purpose of determining representation by population in the House of Representatives? (1 point) Slaves would be counted as three-fifths of a person for official population counts. Slave populations would count for representation but ... Thursday, November 19, 2015 by Mariana Math Evan type 72 pages of notes one day. He typed one half of the pages in the morning and one third of the pages in the afternoon. He type the rest of the pages in the evening. How many pages of notes that he typed in the morning and afternoon Thursday, November 19, 2015 by Adam math Help me with this In a class of 30 students, 18 offer mathematics (M), 15 offer science (S) and 13 offer english (â‚¬). The number of students who offer all the three subjects is equal to the number of students who do not offer any of these subject. 10 students ... Thursday, November 19, 2015 by bwalya Math In the accompanying diagram, the perimeter of isosceles triangle MNO is equal to the perimeter of square ABCD. If the sides of the triangle are represented by 4x+4 , 5x-3, 17 and one side of the square is represented by 3x, find the length of the square Thursday, November 19, 2015 by Randy James Math fractions A picture frame is 6 1/4 inches wide by 8 inches tall. If a 5 inch by 7 inch picture is to be centered in the frame, what should the right margin be? Thursday, November 19, 2015 by Devon math How many fewer minutes would it take the driver to travel a distance of 10 miles at a speed of 65 miles per hour than at a speed of 50 miles per hour? Round your answer to the nearest minute. Thursday, November 19, 2015 by mathew Stats Fill in the table below regarding populations and samples. The first column represents the question the statistician is trying to answer. Fill in the blank(s) for each row. 1.Is my well water safe? 2.Are as many girls born as boys in the world? 3.Which works better, Advil or ... Thursday, November 19, 2015 by Logan math another question I have, is what if you deposit$125 in American currency saving account, if the exchange rate is the same how much American money would I get if I exchange $400 in Canadian currency Thursday, November 19, 2015 by minnie Math A dilation has center (0, 0 ,0). Find the image of the point (-1, -2, 0) for the scale factor of 3. Thursday, November 19, 2015 by Bela English The High School Step Team Karlaâ€™s cousin Jade urged her to join the step team. â€œThis afternoon you should definitely try out!â€ Jade suggested after the final bell rang. â€œI know she wants the best for me,&... Thursday, November 19, 2015 by Kaai97 math out of 9/15 and 3/10 and 6/10 which are equivalent? and could toy tell me why, I am having difficulties with this! thanks Thursday, November 19, 2015 by minnie math The value of 4x^3-x/(2x+1)(6x-3) when x=9999 If 7 men working 7 hrs a day for each of 7 days produce 7 units of work, then the units of work produced by 5 men working 5 hrs a day for each of 5 days is? Pls help*** Thursday, November 19, 2015 by adam math can someone tell me why 9/15 is equivalent to 3/10 I cant seem to figure it out,?? Thursday, November 19, 2015 by noah math 1. The amount Rs 2100 became Rs 2352 in 2 years at simple interest. If the interest rate is decreased by 1%, what is the new interest? 2. My grandfather was 9 times older than me 16 years ago. He will be 3 times of my age 8 years from now. Eight years ago, the ratio of my age ... Thursday, November 19, 2015 by adam math paul salary is 2,172 monthly he spend 1/4 in rent 1/8 in car 5/8 in others how much spend monthly in car and rent? Thursday, November 19, 2015 by Anonymous Math Help!! Order the numbers from least to greatest. 1/3, 1 and 1/4, 0.27, 1.35 I am sorry I really need help on this one. Thursday, November 19, 2015 by Mani math which number is a perfect cube? 1. 5 2. 100 3. 125*** 4. 150 Thursday, November 19, 2015 by cheyenne Math A dilation has center (0, 0 ,0). Find the image of the point (-1, -2, 0) for the scale factor of 3. I'm not sure how to do this. Thursday, November 19, 2015 by Belle Math The quotient of two proper fractions is less than 1 Thursday, November 19, 2015 by Joey math The game of checkers is played on a square board. If the area is 256 square feet, what is the perimeter of the board? Thursday, November 19, 2015 by Anonymous Math Help!! Order the numbers from least to greatest. 3/8, 19/24, 2/3 Thanks.. :) In need of help to understand how to order. Thursday, November 19, 2015 by Mani math A vendor bought 10 dozen eggs at the rate of Rs 22 per dozen. Six of the eggs were rotten. He sold the remaining eggs at the rate of Rs 2.50 per egg. Find his profit or loss. Ans-65 profit Pls help me Thursday, November 19, 2015 by adam math Michelle has half of her investments in stock paying a 6% dividend and the other half in a stock paying 10% interest. If her total annual interest is$680, how much does she have invested?
Thursday, November 19, 2015 by ivan

math
If matrix A has x rows and x + 5 columns, matrix B has y rows and 11 â€“ y columns and both AB and BA are defined for product then x and y are:
Thursday, November 19, 2015 by Ahmad Faraz

math
Mr. X invested a part of his investment in 10% bond A and a part in 15% bond B. His interest income during the first year is Rs.4,000. If he invests 20% more in10% bond A and 10 % more in 15% bond B, his income during the second year increases by Rs.500. His initial investment...
Thursday, November 19, 2015 by moon

math
review exercise 10 question 2
Thursday, November 19, 2015 by khadija