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January 17, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

Math
My son has the numbers 1-12. In a square all sides must add up to 25. Each number can only be used once apart from the corners as they will be used twice to form the square pleaseee hellpppp
Thursday, December 15, 2016 by Stacy

Math
I'm really confused on how to do this, Can someone help walk me through? An object is placed in front of a concave mirror as shown in the diagram below. A. Draw at least two rays that demonstrate how this mirror produces an image. (4 points) Image B. Describe the image ...
Thursday, December 15, 2016 by Mailbox-Kun

math
Fariza gave .3 of her flowers to her sister, 4/7 of the remainder to her brother. Fariza remained with 45 flowers. a) Calculate the percentage of flowers Fariza kept for herself. b) How many flowers Fariza had at the begining? c) Calculate how many more flowers her brother ...
Thursday, December 15, 2016 by indira

math
sharon's onions cost $2.75/200g and Arnold's Onions cost $3.00/1/4kg a) Which of the vendors is selling onions more expensive/ b) How much would 1kg of onions cost?
Thursday, December 15, 2016 by indira

math
please help me im really confused i keep changing my answer and i have no clue what the answer is write a rule for the function represented by the table input (x) 0, 1, 2, 3, 4, output (y) 3, 6, 9, 12, 15,
Thursday, December 15, 2016 by depression

Math Help
Math unit test. (1) write the fraction 1/8 as a percent. round to the nearest hundredth of a percent where necessary. 12.50% 37.50%**** 62.50% 80.00%
Thursday, December 15, 2016 by Jimmy

math
46 + 2d = 10 + 5d How would i do this problem step by step. I need these notes for the future
Thursday, December 15, 2016 by edgard

math
The scatterplot shows the number of minutes spent reading (x) and the number of pages read (y) by each of seven students last night. Use the labeled points to create a linear model that predicts the number of pages that a typical student reads in x minutes. Which equation ...
Thursday, December 15, 2016 by maddie

MATH HELP PLEASE
Find the digit that makes _1,258 divisible by 9? List all the factors of the number 30? Find the prime factorization of the number 168?
Thursday, December 15, 2016 by bler

math
the temperature dropped 14 degrees in 3.5 hours
Thursday, December 15, 2016 by lorenzo

Math
Ms Rowe needs to make a box to hold 729 cm^3. She needs the box to have a lid. What are the dimensions of the box that would minimise the surface area?
Thursday, December 15, 2016 by Kate

Math
Bob is twice as old as chuck, and susie is 10 years younger than bob. If the sum of their age is 100 years, how old is susie?
Thursday, December 15, 2016 by Anonymous

Math
the half-life of iodine-131 is 8 days. how much iodine-131 will be left After 35 grams sample after 32 days?
Thursday, December 15, 2016 by Tony

Math
PLEASE CHACK MY ANSWER!!! Discussion for Applications of Linear Systems When solving a system of equations, how do you determine which method to use? My answer: I determine which method to use by looking at the equations. If both equations are in slope-intercept form, I choose...
Thursday, December 15, 2016 by Matthew

Zee school , math subject.
From a rectangular sheet of tin,of size 100cm by 80cm,are cut four squares of side 10cm from each corner.Find the area of the remaining sheet.
Thursday, December 15, 2016 by Ku!@#$%^&ha

Math grade 6, ratio
Mr. Lynch bought some oranges and pears.after giving away 10 oranges, he had twice as many pears as oranges left.if he had 24 pears in the end,what was the ratio of the number of oranges to the number of pears he had at first?
Thursday, December 15, 2016 by Peachie

Math grade 6, ratio
The ratio of the number of boys to the number of girls in a school choir is 4:3.there are 6 more boys than girls.if another 2 girls join the choir, what will be the new ratio of the number of boys to the number of girls in the school choir?
Thursday, December 15, 2016 by Peachie

math
The smallest of three consecutive integers is added to twice the largest, the result so obtained is fifteen less than four times the middle integer. Find the integer s.
Thursday, December 15, 2016 by kamal

Math grade 6, ratio
The number of tim's stamps is 3/4 the number of david's stamps.if tim gives 1/2 of his stamps to david,what will be the ratio of the number of tim's stamps to the number of david's stamps?
Thursday, December 15, 2016 by Peachie

math
Find the coordinates of the image of the point p(4,6)under the reflection about the line x=3 followed by the reflection about the line y=x.
Thursday, December 15, 2016 by nimdiki

Math
in the figure given below, area of parallelogram ABCD is 29 square centimeters.calculate the height of parallelogram ABEF if AB=5.8.
Thursday, December 15, 2016 by Farhan khan

math
A restaurant has tables that can seat either 4 or 7 persons. there are 12 four seaters and 8 seven seater tables. a) what is the largest number of persons that can be seated if all the four seater tables only are occupied? b) 83 persons are to be seated for lunch. All the four...
Thursday, December 15, 2016 by indira

math
given tat F(x)=x^3+ax^2+bx has critical points at x=1 and x=5 find a and b and classify the critical points as max, min, or neither.
Thursday, December 15, 2016 by Krissy

Math
A coyote can run up to 43 miles per hour while a rabbit can run up to 35 miles per hour. Write two equivalent expressions and then find how many more miles a coyote can run in six hours than a rabbit at these rates
Thursday, December 15, 2016 by Ashlee

Math
11x+55=
Thursday, December 15, 2016 by Ashlee

Math
4×5 1/8
Thursday, December 15, 2016 by Ashlee

Math
(Round to the nearest 10) The average person eats 60 hots dogs. Rota is 86 years old. How many hot dogs would she have eaten in her life time
Thursday, December 15, 2016 by Sis

math
leslie decides to join a gym . she must pay a monthly fee plus a one -time fee to open a membership. This situation can be modeled by the expression 55x + 80 . explain how each number and letter in the expression relates to the problem .
Thursday, December 15, 2016 by mika

Business Math
The proceeds of a $9,500.00, 10 percent simple discounted note for 95 days is?
Thursday, December 15, 2016 by TheRealPrincess

Math algebra
The radioactive decay of a substance is expressed by A=A^0 e^ -kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find out how much of 1,000 mg of strontium 90 remains...
Thursday, December 15, 2016 by Emily

Math
109 miles at 1.99 a gallon how much is amount of paid mileage
Thursday, December 15, 2016 by Anonymous

Math
Compatible numbers to find two estimates that the quotient is between 2,593÷6
Thursday, December 15, 2016 by Mickies

math
11 notebooks were added to w notebooks. 7 friends then shared the notebooks equally. Express the number of notebooks each person received in terms of w.
Wednesday, December 14, 2016 by Anonymous

Math
The length of a picture frame is (8u - 12) inches. Its width is 3/4 of its length. Express the width of the picture frame in terms of u.
Wednesday, December 14, 2016 by Anonymous

math
determine the equation of the graph in the form y=acos(bx)
Wednesday, December 14, 2016 by Anonymous

Math
A rectangle's length and width is a ratio of 17:2. The area is 136 square yards. What is the length and width. I have no idea on how to even attempt to work this problem. Please help!
Wednesday, December 14, 2016 by Mak

Math
How many critical values does the function f(x) = 3x^4 + 4x^3 have?
Wednesday, December 14, 2016 by pypski

Math
If -272° c is changing at a steady rate for 25 minutes how much would the temperature change each minute
Wednesday, December 14, 2016 by Need some help

Math Antics
A certain disease has an incidence rate of 0.5%. If the false negative rate is 7% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease.
Wednesday, December 14, 2016 by Devin

Math Algebra Help
Tom had a board that was 4 ft. 5 in. long. He cut off a piece that was 1 ft. 9 in. long. How much board does he have left?
Wednesday, December 14, 2016 by Economics

Math
A rectangles length and width are in a ratio of 17:2. The area is 136 square yards. What are the length and width. Have no idea how to even start to work this problem other than 17L X 2w= 136
Wednesday, December 14, 2016 by Mak

math
a large pie was cut into 12 pieces 2/6 of The Pie was eaten how much is left over?
Wednesday, December 14, 2016 by Lanie

math
The length of a rectangle is 6x feet and its width is 3x feet. The area of the rectangle is 420 - 6x square feet. What is the perimeter of the rectangle, in feet? Hint: Create a true equation using the fact that LW = Area. Solve the equation for x by factoring. Find the length...
Wednesday, December 14, 2016 by Johmes

Math
The question:Consider a data set of 15 distinct measurements with mean A and median B. (a) If the highest number were increased, what would be the effect on the median and mean? Explain. The mean would remain the same while the median would increase. Both the mean and median ...
Wednesday, December 14, 2016 by Adriana

Math
Hi can someone please help me? A recent study gave the information shown in the table about ages of children receiving toys. The percentages represent all toys sold. Age (years) Percentage of Toys 2 and under 3-5 6-9 10-12 13 and over 17% 19% 24% 13% 27% What is the ...
Wednesday, December 14, 2016 by Kelly

math
How would you justify the steepness of a slope?
Wednesday, December 14, 2016 by Anonymous

Math
The eleventh term of an A.P.with positive terms is four times its third term and the product of thord te and eleventh term is 256.Find the A.P.
Wednesday, December 14, 2016 by Lakshya Tomar

Math | Algebra
Brand A granola is 25​% nuts and dried fruit and brand B granola is 20​% nuts and dried fruit. How much of sweet item A and sweet item B should be mixed to form a 20-lb batch of sweets that is 23​% nuts and driedâ&#...
Wednesday, December 14, 2016 by Ethan

Math
Here is the question:Consider a data set of 15 distinct measurements with mean A and median B. (a) If the highest number were increased, what would be the effect on the median and mean? Explain. The mean would remain the same while the median would increase. Both the mean and ...
Wednesday, December 14, 2016 by Riana

Business Math
3.) The demand equation for a certain product is q=500-40p+p^2 where p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by ½...
Wednesday, December 14, 2016 by pypski

math
The number of blocks has 9 in the ones place the number in the hundred place is one more than the number in the tens place those two numbers equal 11 how many blocks are there?
Wednesday, December 14, 2016 by Anonymous

Math
Solve the quadratic (2x+6)(3x-1)=2
Wednesday, December 14, 2016 by sakshi

Math
Is it reasonable or not give me an anwser
Wednesday, December 14, 2016 by Jack

Math
Brian was training to run a marathon. During the three day period before the race he decided he would train for 11 hours. If he trained for 2 3/5 hours first day and 2 9/10 second day, how many hours would he need to train third day. This is the question I solved it to the ...
Wednesday, December 14, 2016 by Feather

Math
If an investment grows 75% in 4 years, what annual compound interest rate, compounded annually, is being earned?
Wednesday, December 14, 2016 by sakshi

Math
Solve for x: e^4x-3 = 2e^2x1 ln2x+6) - ln(3x-1) = ln(2) Then, simply the radicals
Wednesday, December 14, 2016 by Jake

Math
What power output will be provided for an amplifier having a gain of 12dB if the power input is 75W?
Wednesday, December 14, 2016 by Jake

Math
A population grows exponentially at a rate of 2.6% per year. How long will it take for the population to triple?
Wednesday, December 14, 2016 by Nancy

math
The height above ground of a snowball thrown from a cliff is modeled by the function h(t) = -16t2 + 64t + 192, where h is height in feet and t is time in seconds. I d3on't know what to do with this i use to do this but know i forgot Guide me through this please
Wednesday, December 14, 2016 by edgard

Math
1.) Air pollution: According to the South Coast Air Quality Management District, the level of Nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in down town Los Angeles is approximated by A(t) = (0.03t^3)(t-7)^4 + 60.2 (0<...
Wednesday, December 14, 2016 by pypski

Math for Claire
My granddaughter's homework asks to: Subtract. Show new groups. 1. 3146-1960 What does that mean...new groups?
Wednesday, December 14, 2016 by Ms. H

math
If I have a 76% average, how many A's do I need to get to have at least a 81% average?
Wednesday, December 14, 2016 by Ashanti

math
Jenn practiced basketball for 45% of the time Kaylee practiced. Jenn practiced for 36 minutes. How long did Kaylee practice?
Wednesday, December 14, 2016 by Anonymous

Business Math
2.) Maximizing revenue: The quantity demanded each month of the Sicard wristwatch is related to the unit price by the equation p=50/0.01x^2 + 1 (0 < or = x < or = 20) where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how...
Wednesday, December 14, 2016 by pypski

Math
Shade the rectangle in this shape that is 5inches long and 2 inches wide. What is the area of this rectangle
Wednesday, December 14, 2016 by Serenity

Math
2/9x3
Wednesday, December 14, 2016 by Emily

Math
Find the lower, upper and interquartile range 20,22,25,28,29,30,32,33,34 Math is not my best subject.
Wednesday, December 14, 2016 by Anon

Math
Purchased 297 square feet of carpet at $18.50 a square yard, what is the cost? 297 / 9 = 33 yards X $18.50 =$610.50 Do I divide by 3 again to get $203.50?
Wednesday, December 14, 2016 by Josie

Math - Algebra (Percents and Ratios)
At a little league game, three fourths of the people in the stands were kids amd the rest were parents. If the ratio of dad to moms is 3:4, what percent of the people attending the game were moms? (Give answer to the nearest percent.)
Wednesday, December 14, 2016 by Christine

MATH FOR LIBERAL ARTS
Estelle is 5.9 feet tall. Find her height in centimeters to the nearest to the nearest tenth.
Wednesday, December 14, 2016 by Eduardo

MATH FOR LIBERAL ARTS
Estelle is 5.9 feet tall. Find her height in centimeters to the nearest tenth.
Wednesday, December 14, 2016 by Eduardo

Math
How much would you need to deposit in an account each month in order to have $20,000 in the account in 7 years? Assume the account earns 2% interest.
Wednesday, December 14, 2016 by Anonymous

Math Help
You deposit $300 each month into an account earning 8% interest compounded monthly. a) How much will you have in the account in 35 years? b) How much total money will you put into the account? c) How much total interest will you earn?
Wednesday, December 14, 2016 by jimi

Math
Grandmother of the kitchen is 28 inches is the width of the kitchen is 120 what is the link of the kitchen
Wednesday, December 14, 2016 by FAITHE

Finite Math
You deposit $300 each month into an account earning 8% interest compounded monthly. a) How much will you have in the account in 35 years? b) How much total money will you put into the account? c) How much total interest will you earn?
Wednesday, December 14, 2016 by Anonymous

math
Jon adds the expressions 5p + 2 and 2p + 1. Carlos adds the expressions 4p + 3 and 7p + 2.
Wednesday, December 14, 2016 by Anonymous

Math
1. A cone has a radius of 40 cm and a volume of 1875 cm^3. what is the volume of a similar cone with a radius of 16 cm. A: 120 cm^3 B: 300 cm^3 C: 75 cm^3 D: 750^3 I know the answer is A but could someone explain how to do the problem.
Wednesday, December 14, 2016 by Embershy

math
The height above ground of a snowball thrown from a cliff is modeled by the function h(t) = -16t2 + 64t + 192, where h is height in feet and t is time in seconds. I d3on't know what to do with this i use to do this but know i forgot Guide me through this please
Wednesday, December 14, 2016 by edgard

MATH
Name the quadrilaterals that have four equal angles. A. rhombus, square B. Square, rectangle C. parallelogram, rhombus D. rhombus, trapezoid My answer B
Wednesday, December 14, 2016 by help me please

Math
The problem features this image, the URL is below. h t t p :/ / a s s e t s . o p e n s t u d y . c o m / u p d a t e s / a t t a c h m e n t s / 5 6 4 c 8 1 d b e 4 b 0 d 3 c 6 6 b 1 4 5 0 c f - j e w e l r y 0 2 - 1 4 4 7 8 5 5 1 0 9 5 6 7 - t r i 5 . p n g a) congruent (my ...
Wednesday, December 14, 2016 by Betta Fish

math
What process would you use to convert a fraction to a lb. Would you take the fraction say 4/8 and make the pound 1/16 then add them together to get the total amount? I desperately need some help here. O_o
Wednesday, December 14, 2016 by unknown

Math
In 2000, the population at Arlington middle school was approximately 421 students. In 2010, the population was approximately 584 students. Find the percent of change in the population at Arlington middle school from 2000 to 2010 and identify it as an increase or decrease. A:27...
Wednesday, December 14, 2016 by Reeces

Math
The area of one of the bases of a figure is about 21.2cm. The other is 7cm on three side and height of 9cm. What is the surface area
Wednesday, December 14, 2016 by Constance

MATH
A certain disease has an incidence rate of 0.5%. If the false negative rate is 7% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease.
Wednesday, December 14, 2016 by Anonymous

math
a beverage bottle can hold 750 milliliters of liquid, and one liter is equal to 1000 milliliters. what percent of a liter can the bottle holds
Wednesday, December 14, 2016 by erica

Math
5 2/3 - 5= 2/3. Use a division algorithm to find the quotient. State the final answer as a mixed number. Why is the fractional part of your quotient different from your answer in the original equation 5 2/3 - 5= 2/3?
Wednesday, December 14, 2016 by Shannon

Math
It takes 5 people 3 days to put up a fence? How many days would 3 people take?
Wednesday, December 14, 2016 by Anonymous

math
On the blueprints of Adam's office building, the length of his rectangular office space is 5 1/4 inches. If the actual length of Adam's office space is 10 1/2 feet, what is the scale of the blueprint?
Wednesday, December 14, 2016 by lulu

math
David is a car salesman. He earns a salary of $750 a month, plus a commission of $300 per car that he sells. David needs to earn a minimum of $3,500 per month. Write an inequality for the number of sales he needs to make to earn his minimum. Let c represent the number of cars ...
Wednesday, December 14, 2016 by bre

Math
Sharon had 3/4 cubic yard of mulch. She used 2/3 cubic yard of mulch in her garden. How much(how many cubic yards) mulch did she have left?
Wednesday, December 14, 2016 by Toni

pure math
i) Expand (1-(x/2))1/5 ii)State the range of values of x, for which the expansion is valid
Wednesday, December 14, 2016 by Anonymous

Math
Sharon had 3/4 cubic yard of mulch in her garden. How much(how many cubic yards) mulch did she have left?
Wednesday, December 14, 2016 by Toni

math
The air pressure at sea level is generally about 1013 hPa (hectoPascals). For every kilometer that you go up in elevation, the air pressure decreases by 12%. Write an equation that describes the air pressure when the elevation is x kilmoeters above the sea level. The answer is...
Wednesday, December 14, 2016 by Carly

Math
If you have 12dozen eggs and 15 broke how much leave?
Wednesday, December 14, 2016 by Leslie

Math
A rectangular strip 25cm*7cm is rotated about the longer side. find the total surface area of the solid thus generated.
Wednesday, December 14, 2016 by Rahul

math
Write the dimensions of the following kitchen plan and find the area of its floor to be tiled presuming that the plan is drawn on dm-square grid
Wednesday, December 14, 2016 by Shreyansh

Math
What is 3/5 of 25?
Wednesday, December 14, 2016 by Alexandra

Math
A student has to score minimum of 40% to pass an exam .if student gets 178 marks and fails the exam by 22 marks, what is the total marks?
Wednesday, December 14, 2016 by Athena

Math
A basket with 30 pears has a weight of 11 kg 200 g. The same basket with 18 pears has a weight of 7kg. if each pear has the same weight: What is the weight of the empty basket? What is the weight of the basket with 7 pears?
Wednesday, December 14, 2016 by Saarthak

math, algebra
My Question is that We have to sketch a floor plan of a house and make a rough estimate of the cost of building the house. We are given a 9m by 9m rectangular lot. I would like to build a one-storey house with 49-square-meter floor area so that there is adequate outdoor space ...
Wednesday, December 14, 2016 by Dann Wesley

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