Wednesday
July 27, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
I am having a little trouble figuring this problem out if someone could help I would appreciate it. Question: The angle of elevation to the top f a tree sighted from ground level is 19degrees. If the observer moves 60 ft closer, the angle of elevation from ground level to the ...
Thursday, July 21, 2016 by Pam

math
If I have a jar that holds 1 quart so how many chocolate chips can fit in there
Thursday, July 21, 2016 by lan

math
If I have a jar and it holds 1 quarts so how many chocolate chips can fit in there
Thursday, July 21, 2016 by lan

math
a board is 19ft 9inches long is cut into nine equal pieces to the nearest inch. how long is each piece? how many inches of board will be left over?
Thursday, July 21, 2016 by charlie

Math
Posted by Pam on Thursday, July 21, 2016 at 10:41am. One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is ...
Thursday, July 21, 2016 by Pam

math
John can cut the grass in 4 hours working by himself. When john cuts the grass with his younger brother michael, it takes 3 hours. How long would it take michael to cut the grass by himself?
Thursday, July 21, 2016 by Lauren

math
What is the sum of all integers x,such -36 <x<38?
Thursday, July 21, 2016 by tisha

math
In how many years taka 1800 will become taka 2250 if the simple interest rate is 5%?
Thursday, July 21, 2016 by tisha

math
A merchant marks a certain lamp up 30% above cost.then he gives a customer a 15% discount.if the final selling price of the lamp was $99,what was the approximate cost price?
Thursday, July 21, 2016 by tisha

Math CSET
A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class scored below this student? I understand the 96-84/4 part to obtain a z-score of 3. What I do not understand is, if I do not have access to a z-score to ...
Thursday, July 21, 2016 by Michael

Math
What are the two prime numbers that if added together equals 99?
Thursday, July 21, 2016 by Moyo

math 1324
The matrix FROM R D I [ 0.6 0.1 0.1] R P=[ 0.2 0.7 0.1] D TO [ 0.2 0.2 0.8] I To is called a stochastic matrix. Each entry pij (i ≠ j) represents the proportion of the voting population that changes from Party i to Party j, and pii represents the proportion that remains ...
Thursday, July 21, 2016 by Anie

general math
the taxpayer should pay 6% of his total income if his income amounts to php 500,000 or below, if his income is between php 500,000 and php 1,000,000 the taxpayer should pay 8% of the total income, if the income is php 1,000,000 or more, he should pay 9.5% of the total income, ...
Thursday, July 21, 2016 by ched

general math
A souvenir store charges PHP 15.00 per keychain for orders amounting 50 or fewer keychains, PHP 12.50 per keychains for orders of 75 or fewer but more than 50 kechains. Which function best represents the cost K(x) of the x number of keychains. hi. i hope you can help me and i ...
Thursday, July 21, 2016 by Marian

general math
the taxpayer should pay 6% of his total income if his income amounts to PHP 500,000 and PHP 1,000,000, the taxpayer should pay 8% of the total income. If the income is PHP 1,000,000 or more, he should pay 9.5% of the total income. Express the tax as a function of x for any PHP...
Thursday, July 21, 2016 by Rachelle

general math
The base jeepney fare is PHP 8.00 for the first four kilometers and an additional PHP 1.50 per kilometers for the succeeding kilometers, express the fare for x kilometers as a function of x. please help me and kindly put the solution too. thank you :)
Thursday, July 21, 2016 by Rachelle

math
How do I write 0.8% as a fraction in lowest terms? I thought I put .8 over 10 and then multiplied by 10/10 to get rid of the decimal. So then I would have 80/100 and then reduce from there which would be 4/5, but my teacher says the answer is 1/125. Thank you.
Thursday, July 21, 2016 by Dani

Math
One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum 7/8? A) It is reasonable because 1/2 + 0 = 1/2. B) It is reasonable ...
Thursday, July 21, 2016 by Pam

Math
When at rest an average adult breathes in and out every 4s. the average minimum amount of air the lungs is 0.08L and the average maximum amount of air in the lungs is 0.82L. Assume the lungs have a minimum amount of air at t=0 where t is time in seconds. a) write a function to...
Thursday, July 21, 2016 by ba

Math
You wish to paint your room. It's four walls measures 9ft high and 10ft wide. If one gallon of paint covers 120sq. ft, how many gallons of paint will you need? Please help?!!! Need this. Urgent.. With solutions please 🤖
Thursday, July 21, 2016 by Dianne

Math
The average age of Ali,Ben and Chandra is 10 years.Ali is 3 years older than Ben.Ben is 6 years older than Chandra.how old is Chandra
Thursday, July 21, 2016 by John

math
it takes raiz 30 minute to mark a peper,razi only takes 25 minutes to mark a peper,if they both start marking paper at 11;00am what is the first time they will finish marking paper at same time?
Thursday, July 21, 2016 by anam

math
the productivity of a person is modelled by the function y=5cos(pi/2 t)+5, where t is in hours and t>and equal to 0. if the person starts work at 8:00am and works for 12 hours determine at what times they are least productive.assume that t=0 represents 8:00am.
Thursday, July 21, 2016 by Stacy

Physics or Math
Question: A Toyota car travelled at the rate of 70 km/hour leaves the house 2 hours after a Kia car has left and overtakes it in 5 hours. at what rate was Kia car travelling? what's the formula pls?
Thursday, July 21, 2016 by John

math
a rectangle with side of 6 cm and 5 cm has the same area as an isoceles triangle with base length 12 cm.find the altitude to the base of the triangle and side of the triangle
Thursday, July 21, 2016 by dcs

Math
What is the pH of buffer solution prepared with 0.05 M ammonia & 0.05 M ammonium chloride? The Kb value of ammonia is 1.80 ✖️ 10^-5 at 25C.
Wednesday, July 20, 2016 by Neth

Math
At a certain store, employees may buy clothing at a 20% discount from the original price, but must pay a 6% sales tax. If the final cost of a sweater purchased by an employee is $55.12 what is the original price of the sweater, before the discount and tax? Explain please
Wednesday, July 20, 2016 by Anonymous

Math
On each of four cards, a different positive integer greater than 1 but less than 20 is written. Exactly 3 of the numbers are multiples of 3, exactly two of the numbers are multiples of 5, and none of the numbers is even. What is the sum of these four numbers?
Wednesday, July 20, 2016 by Lenin

Math
In a group of 500 students, 150 are studying physics, 220 are studying biology, and 100 are studying chemistry. At least 25 students are studying more than one of these sciences. What is the greatest possible number of these students that might NOT be studying any of these ...
Wednesday, July 20, 2016 by Anonymous

math
Given that 0 ≤ 𝑥 ≤ 𝜋/2and 0 ≤ 𝑦 ≤𝜋/2 find the exact value of 𝑡𝑎𝑛(𝑥 + 𝑦) if 𝑐𝑜𝑡(𝑥) =6/5 and 𝑠𝑒𝑐(𝑦) =3/2
Wednesday, July 20, 2016 by Stacy

Math - Trig
The equation given below models the average monthly temperature (˚C). t denotes the number of months with t=1 representing January. During which months is the average monthly temperature 12.5˚C? 𝑇(𝑡) = 12.5 + 15.8sin (𝜋/6 (𝑡) −2...
Wednesday, July 20, 2016 by Anonymous

Math - Trig
A hamster enters a wheel at the lowest point and begins to run . The height of point R (in the diagram below) above the ground is given by the function ℎ(𝑡) = −17.5 cos ( 2pi/3 𝑡) + 19, where ℎ is height in centimeters and 𝑡 is time in...
Wednesday, July 20, 2016 by Anonymous

Math
For what value(s) of r is r^2+5r+6/r+2 equal to 0? A) -2 only B) -3 only C) 3 only D)-2 or -3 E) 2 or 3 I got A but it is incorrect and I'm still confused Thanks
Wednesday, July 20, 2016 by Damon

Math
If given the graph of 𝑓(𝑥) = − sin (3x + 𝜋/3 ) − 2 describe the steps you would take to draw the graph of the reciprocal function
Wednesday, July 20, 2016 by Anonymous

Math
A mortgage of 200 000 is required to purchase a house. The mortgage will be repaid with equal monthly payments over 25 years at 10% compounded monthly. what is the monthly payment
Wednesday, July 20, 2016 by Jennfier kosner

math
the product of three numbers is 315.if two of the numbers are 7 and 9 .what is the third number?
Wednesday, July 20, 2016 by joshua

Math
The tornadoes have won 75% of their games. If they their next 4 games, their win percentage goes up to 80%. How many games have they played right now? (Please explain how to solve this problem)
Wednesday, July 20, 2016 by Selina

math
ther 840 people in mrs mitchells class and 453 people in mrs coles class i want to know how many people all are toghether
Wednesday, July 20, 2016 by melshia griffin

Math
Clark has 7 1/2 feet of wire. Part A. How many 3/4 foot pieces can Clark cut from the 7 1/2 feet of wire? Part B. Using the information in Part A, interpret the meaning of the quotient in terms of the two fractions given.
Wednesday, July 20, 2016 by Anonymous

Math
A number sentence is 50 1/2 ÷1/4 =202. Part A. Create a story or context for this number sentence. Part B. Rewrite this number sentence using multiplication. Part C. Give a verbal explanation that describes how these three numbers are related.
Wednesday, July 20, 2016 by Anonymous

Math
The dimensions of a rectangular prism are Length 2/14 feet width 1 foot Height 1 1/4 feet. The length of the sides of a small cube are 1/4 foot each. Part A. How many small cubes can be packed in the rectangular prism? Part B. Use the answer obtained in Part A to find the ...
Wednesday, July 20, 2016 by Anonymous

Math
There are 45 students in a class of which 3/5of them are boys.how many girls ate there in the class?
Wednesday, July 20, 2016 by Nad

Math
Part b using the information in part a , interpret the meaning of the quotient in terms of the two fractions given
Wednesday, July 20, 2016 by Angela

Math
if sec(x) = - squaroot 20 /3 (squroot applies to 20 not the fraction) then state the exact vale of tan (x)
Wednesday, July 20, 2016 by Anonymous

Math
How many small cubes can be packed in the rectangular prism
Wednesday, July 20, 2016 by Karuun

math
if the ratio of interior angle of triangle are 4:11:3.Find the greater angle.* i am confused about the word greater does the question need the angle with 11 ratio or 4 ratio?
Wednesday, July 20, 2016 by kelvin

Math
How far will a 4ft diameter wheel travel while making 100 revolution?
Wednesday, July 20, 2016 by Paul

math
the sum of three consecutive numbers is eighteen. Write an expression describing the equation and solve the state of the three numbers
Wednesday, July 20, 2016 by Erica

math
the sum of three consecutive numbers is eighteen. Write an expression describing the equation and solve the state of the three numbers
Wednesday, July 20, 2016 by Erica

Math
Roots. Solve and check 1/4 -1/x+6= 1/x
Wednesday, July 20, 2016 by Cazi melar

math
The area of a variable rectangle is increasing at the rate of 40cm/s. The length of a rectangle is always equal ti the square of the breadth. At what rate the length is increasing at the instant when the breadth is 8cm?
Wednesday, July 20, 2016 by bengia lucy

math
show that abc is a right angled isosceles triangle prove that AD>AC and AC>CD also arrange in ascending order
Wednesday, July 20, 2016 by dcs

math
The angles of elevation of a balloon directly above a straight road, from two points of the ground on opposite sides of the balloon, are 78¡ã15' and 59¡ã47'. If the points are 5000ft apart, what is the height of the balloon?
Wednesday, July 20, 2016 by james

jbcmhs uptown campus
math
Wednesday, July 20, 2016 by james

Math
If a(b)=b^2 -2b and 4a(b)=a(2b)-24, what is the value of b?
Tuesday, July 19, 2016 by Anonymous

Math
if e and f are inversely proportional and e=3 when f=9, then what is the value of e when f=3^-1? Please help.
Tuesday, July 19, 2016 by Anonymous

Math
If p^1/3 = (8x)^1/6, x^-1/2 =4^-1/4, and 4y = |p-8|, what is the value of y?
Tuesday, July 19, 2016 by Lenin

Math
If q^1/2 = x, x^-1/4 = 4^-1/2, what is the value of q? Plz help me!
Tuesday, July 19, 2016 by Benjamin

Math
How many possible values exist for y if 4-3y<10,-y-8>-14,and y is an integer? Help?
Tuesday, July 19, 2016 by Anonymous

Math
c and d are positive consecutive odd integers whose sum is 240. If c > d, then 1/square root of c=? Help?
Tuesday, July 19, 2016 by Alissa

Math
Given that |a-2| = 9 and |w-1| = 6, where a < 0 and w < 0, what is the value of aw? Please help and explain.
Tuesday, July 19, 2016 by Jessi

Math
If the sum of the five consecutive integers is 80, what is the value of sum of the least of these integers and the median of these integers? Can you explain it?
Tuesday, July 19, 2016 by Anonymous

math
one of the angle of triangl is 60 degree.the smaller angle of the other two angle is half of the greater.find all angles
Tuesday, July 19, 2016 by doon iernational

Math
The earth takes 365 1/4 days to go around the sun. Mercury takes 3 days less than 1/4 of this time. How many days does Mercury take to go around the sun? I believe I would have to find 1/4 of the 365 1/4 days then take 3 days out. I was given this do as home work but was not ...
Tuesday, July 19, 2016 by Arianna

math
The angle of elevation to the top of a building is found to be 5 degrees from the ground at a distance of 4 miles from the base of the building. Find the height of the building to 4 decimal places.
Tuesday, July 19, 2016 by Anna

Math
If the scale factor is 2.5” = 3 ft, what is the area of the room in the real world?
Tuesday, July 19, 2016 by Help!!!

math
A lawyer drives from her home, located 6 miles east and 10 miles north of the town courthouse, to her office, located 4 miles west and 14 miles south of the courthouse. Find the distance between the lawyer's home and her office. I know the answer is 26 miles but I cannot ...
Tuesday, July 19, 2016 by Carly

math
Anna earned some movie money by shoveling the driveway. sHe shoveled 1/5 of the driveway after school, then 1/2 of what was left after she did her math homework, then finished the remaining 200 square feet after supper.
Tuesday, July 19, 2016 by zoraida

math
Find the second derivative of y^2 = 4rp
Tuesday, July 19, 2016 by Jefferson

Math
The height of a stack of 3 similar books is 7.5cm.What is the geight expressed in metres,of 50 such books stacked one on top of each other?
Tuesday, July 19, 2016 by Celest

math
Seven digit whole number
Tuesday, July 19, 2016 by ella

Math
A ball rebounds 1/2 of the height from which it is dropped. It is dropped 56m from the building and it kept bouncing. How far would the ball have travelled up and down when it strikes the ground for the 6th time?
Tuesday, July 19, 2016 by Aubrie

math
if two sides are 2.4m and joined by an angle of 30 degrees, what length will the third side be
Tuesday, July 19, 2016 by danne

Math
Daniel and Imee shared a bag of rice in the ratio 4:5.Daniel receives 16 kg of the rice . What was the mass of the bag of rice that was shared? My work: 4:5-16/9=1.77777777778/1.8 =1.8*9=16.2 kg Is it correct
Tuesday, July 19, 2016 by Jovanni

Math
a number rounds off to 4000.the digits in the hundreds place is twice the digits in the tens place.the sum of the digits is 12.the number uses only two different digits.find the number
Tuesday, July 19, 2016 by Yohann

Math please help!!
In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB=DE, BC=EF, and ∠A=∠D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special ...
Tuesday, July 19, 2016 by Bob

math
if a cone is cut through the centre where it makes perpendicular to the vertex.what will be the surface area of the obtained half the cone
Tuesday, July 19, 2016 by kelvin

Math
Tia is investing $2500 that she would like to grow to $6000 in 10 years. At what annual interest rate, compounded quarterly, must Tia invest her money? Round your answer to two decimal places.
Tuesday, July 19, 2016 by Dw about it

Busn math
What is the whole number or simplified answer to 3/35 divided by 9/7
Monday, July 18, 2016 by Trace

N.E.S. math
Add.reduce the sum to lowest terms whenever possible 4/10+2/10+2/10
Monday, July 18, 2016 by Kendrick

Math
A rope of 17 1/2 feet long is cut into 7 pieces. If the pieces are the same length, what is the length of each piece?
Monday, July 18, 2016 by ?

math
Find the area of a square that has the same perimeter as a rectangle whose length is 48m and the ratio of length to the breadth is 3:1.
Monday, July 18, 2016 by Parben Alam Khan

Math
If an individual saves $5,700 and elects to place the total dollar amount into a savings account earning​ 2.75% APR compounded​ monthly, how much will the original deposit grow to in 12​ years?​
Monday, July 18, 2016 by Chuck

MATH
three consecutive terms of a geomentric progression series have product 343 and sum 49/2. fine the numbers. HOW WILL ONE SOLVE THAT? THANKS
Monday, July 18, 2016 by Archiebald

MAth
6sin^2(x) - 5sin(x) + 1 = 0 solve
Monday, July 18, 2016 by Anonymous

Math (PLEASE HELP!)
The function g(x) is a transformed image of the graph of f(x)=2^x. Write the equation of the transformed function g(x) in the form g(x)= b^x-h+k. f(x) (0,1) (2,4) g(x) (-1,2) (-3,-1)
Monday, July 18, 2016 by Anonymous

Math - Trig
Solve for exact or to 1d.p of x E [0 ,2pi] 4cos^2x-3
Monday, July 18, 2016 by Anonymous

math
Phone company A charges $20 per month plus $.15 per minute used. Phone company B charges $35 per month plus $.10 per minute used. Write and solve an equation to find the number of minutes you must use to have the same cost for both phone palns
Monday, July 18, 2016 by emma

Math
Hi, I have a question regarding simplifying the following expression: (1/x)/((1/3)x^(-2/3)) = 3/3sqrtx The last expression reads three over cube root of x. I don't understand how to get from the expression on the left side of the equal sign to the one on the right. Could ...
Monday, July 18, 2016 by Constantine

math
A spinner is divided into 8 equal parts. They are numbered 1-7 and the 8th has a star. What is the probability of it landing on the star?
Monday, July 18, 2016 by Mimi

math
In an interbarangay basketball league the team from barangay Culiat has won 12 out of 25 games a winning percentage of 48% .We have seen that they need to win 8 games consecutively to raise their percentage to at least 60%. What will be their winning percentage if they win 10 ...
Monday, July 18, 2016 by Queen

math
Prove that cos^6A+sin^6A=1/4(1+3cos^22A)
Monday, July 18, 2016 by raginichakravorty

Math
In an interbarangay basketball league the team from barangay Culiat has won 12 out of 25 games a winning percentage of 48% .We have seen that they need to win 8 games consecutively to raise their percentage to at least 60%. What will be their winning percentage if they win 10 ...
Monday, July 18, 2016 by Queen

MATH
A quiz consists of 90 multiple-choice questions, each with 4 possible answers (A, B, C and D). For someone who makes random guess , A is the correct answer for all the questions. If each right answer carries 4 marks and each wrong answer gives -1/4 marks, what probable marks ...
Monday, July 18, 2016 by ANUP

MATH 70
3 is less than or equal to y , and y is less than or equal to 4
Monday, July 18, 2016 by Anonymous

Math
How much pure antifreeze must be added to 18 liters of a 20% solution to make a 40% solution ?
Sunday, July 17, 2016 by Jesse

Math
A COMPANY CHARGES $20.00 PER DAY PLUS 64 CENTS A MILE YOU DRIVE 100 MILES HOW MUCH DO YOU OWE?
Sunday, July 17, 2016 by ALFRED

Math
ABC is an equilateral triangle with side length 4. M is the midpoint of BC, and AM is a diagonal of square ALMN. Find the area of the region common to both ABC and ALMN.
Sunday, July 17, 2016 by Bob

Math
If Jane walks North for 3 miles, turns 45 degrees to the right, and then walks another 4 miles, how many miles will Jane be from her starting point? Give your answer as a decimal rounded to the nearest hundredth. Plz help!!!!
Sunday, July 17, 2016 by Bob

Math
Two airplanes leave Dallas, Texas traveling in opposite directions. One is traveling 28 mph faster than the other airplane. How fast is the faster airplane traveling if the two airplanes are 2,320 miles apart after 2 hours and 30 minutes?
Sunday, July 17, 2016 by Mike

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