Monday
February 27, 2017

Homework Help: Math

Branches of Math

Recent Math Questions

math
If the denominator of a fraction decreases by 20 percent, and the numerator increases by 20 percent, by what percentage does the value of the fraction change?
Saturday, February 4, 2017 by sukh

math
PQRS is a cyclic quadrilateral. Then find the value of x
Saturday, February 4, 2017 by abcd

math
what is the volume of a rectangular prism with a length of 11 meters, width of 26 meters, and height of 38
Saturday, February 4, 2017 by Nyan

math
Fido weighs 26 pounds more than Fifi. Fifi weighs 12 pounds less than Rover. If the sum of their weights is 71, how much does Fifi weigh?
Saturday, February 4, 2017 by Dave

Math
If the angle of elevation of a tower from two points at distance a and b where a is greater than b from its foot and in the same straight line from it are 30degree and 60degree ,find the height of the tower
Saturday, February 4, 2017 by Vaibhavi singh

Math
How to solve | x + 1 | << 3 graphically? Ty
Saturday, February 4, 2017 by Susan

Math
Is there a formula/method for finding a vertical line that divides a trapezoid into 2 parts with equal areas when all the vertices are known?
Saturday, February 4, 2017 by Anonymous

Math
Find 2 numbers whose arithmetic mean exceeds their geometric mean by 2and whose harmonic mean is 1/5 of the larger number
Saturday, February 4, 2017 by Rangesh

Math
Find the range of each function over the given domain. A) y=x^2 for 0 << x << 3
Saturday, February 4, 2017 by DIg

Math
Given the sequence 4;-2 ; 1 find the next two term. 4;-2;1;-3;-1
Saturday, February 4, 2017 by Anonymous

math
After a drought, the Great Salt Lake in Utah covered an area of 2450 kilometers squared or 35/64 the area of the lake under normal weather conditions. Find the area of Great Salt Lake under normal weather conditions.
Friday, February 3, 2017 by Steven

Math : ratio and proportion
if a scooter requires 2 litres of petrol to cover 80 kilometre then how many litres of petrol does it require to cover 1 kilometre?
Friday, February 3, 2017 by Navya

Math
Frank has $20 less than Tracy. John has twice as much as Frank. Patty has three times as much as John. Together they have $340. How much does each person have?
Friday, February 3, 2017 by Mason

Math - fractions
Name 4 fractions between 1/2 and 5/7
Friday, February 3, 2017 by Nolan

Math
The radius of the larger circle is 9cm. The diameter of the smaller circle is 11cm. Find the area of the shaded region The shaded area is between the larger circle and smaller circle . It is concentric The area of the larger circle is 81Ï€. The smaller circle has area 121...
Friday, February 3, 2017 by Nicki

Math
A pencil costs $3.50 and a pen costs $6.70. Jessica bought m pens. She also bought 4 fewer pencils than pens. Write an algebraic expression for the total amount she spent. The answer supposed to be 6.70m + 3.5 (m-4). I got confused of what to do
Friday, February 3, 2017 by Bobby

Math
A colony of bees doubles in population every 5 weeks.hpw long does it take for the population to triple ?
Friday, February 3, 2017 by Mike

math
Ali is planning to keep fit through practicing push-ups for 21 days. on the first day, he can only do 14 push-ups in a minute. He plans to do x more push-ups in a minute on the next day. How many push-ups can he do in a minute on 11th days? (in term of x)
Friday, February 3, 2017 by Dina

math
(3+1/2)x14 is it 49
Friday, February 3, 2017 by jac

math
1/3 of 2 feet = inches
Friday, February 3, 2017 by jac

math
what is the sum of two missing digits in this addition: -3x + 17 =(-x8)
Friday, February 3, 2017 by Anna

Math
Meghan and Sabrina compared the amount of interest they each earned on their savings accounts. Each had deposited $1000, but Meghan earned $140 interest and Sabrina earned $157.50. Whose savings account had a higher interest rate? Explain.
Friday, February 3, 2017 by Kay

Math
which equation can be used to find the measure of an angle that is supplementary to angle EGB
Friday, February 3, 2017 by Wazzzuupp

Math
Nick borrowed $7150, to be repaired at an annual simple interest rate of 6.25%. How much interest will be due after 5 years? How much will Nick have to repay?
Friday, February 3, 2017 by Kay

math
Find two fractions in lowest terms with unequal denominators whose difference is 2/13?
Friday, February 3, 2017 by Shanee

math
Please does anyone have ANSWERS for the UNIT 7 LESSON 8 SYSTEMS OF EQUATIONS AND INEQUALITIES? FWI: It's Algebra 1 NOT PRE algebra please if I fail I'll get an F!!!!!!!
Friday, February 3, 2017 by Glad To Help

Math
Daniel made a chocolate pie, a cream pie, and an apple pie that were the same size and shape for a celebration. After the celebration the following amounts of pie were remaining: 5/8 of chocolate 1/6 of cream pie 1/4 of apple pie What fraction of a whole pie is remaining?
Friday, February 3, 2017 by Anastasia

math
suppose your friends parents invest 20,000 in an account paying 7% compounded annually what will the balance be after 6 years
Friday, February 3, 2017 by mikayla

Math
An item is regularly priced at $65 . It is on sale for 80% off the regular price. How much (in dollars) is discounted from the regular price?
Friday, February 3, 2017 by Anonymous

math
There are 30 students in the class. There are 4 more boys than girls in the class. What do I do to solve this? The ratio is 4:1? Then what do with the 30? I am very confused.
Friday, February 3, 2017 by Mike

Math
How many boxes will cover a 9 ft.by 12ft.,20 tiles to a box tile is 12x12 inches
Friday, February 3, 2017 by Meme

Math help PLEASE!!!!
1. David drew triangle PQR as shown: If LQPR measures 135 degree, which statement is true for LPQR and LPRQ?
Friday, February 3, 2017 by Anonymous

Math
A) estimate 49 of 162. B) use mental math to calculate 49 of 162
Friday, February 3, 2017 by Anonymous

Math
The sum of two numbers is 45. The difference between the numbers is 37. What is the value of the 2 number?
Friday, February 3, 2017 by Nayeli

math
Given G of x equals the integral from 1 to x of the natural logarithm of the quantity 2 times t plus 1, dt, find G '(x) ln(2x + 1) ln(2x + 1) − ln3 ln(2t + 1) + C 2 divided by the quantity 2 times x plus 1 my answer is ln(2x+1) but I dont think its right
Friday, February 3, 2017 by Anonymous

math
there were 12 red fish,5 blue fish,and 2 yellow fish.how many fish were there altogether?
Friday, February 3, 2017 by asira

math
Micah walks on a treadmill at 4 miles per hour. He has walked 2 miles when Luke starts running at 6 miles per hour on the treadmill next to him. If their rates continue, will Luke's distance ever equal Micah's distance? Explain. *At 5 hours Luke will run 30 miles and at 8 ...
Friday, February 3, 2017 by :)

math
in an arithmetic sequence 17th term is 9 times the first three terms and the 9th term is 6 less than 3 times the 1st term. Find the first three terms
Friday, February 3, 2017 by jessica

math
in an arithmetics sequence the 17th term is 6 less than 3 times the 1st term. Find the first three terms
Friday, February 3, 2017 by lesedi

math
what is angle B if triangle ABC is given such that angle A is 46° sides a=4 &b=8 side a faces angle A..
Friday, February 3, 2017 by jee type question

Math
The ratio of the ages of husband and wife is 4:3. After 4 years the ratio will 9:7 . At the time of marriage the ratio was 5:3 , then how many years ago they got married?
Friday, February 3, 2017 by AnnA

Math
Binomial Theorem using Pascal’s Triangle or nCr to find the coefficient then find the 27th term of (-3x+4y)55. Don’t forget to clean up the algebra.
Friday, February 3, 2017 by Coolest

Math
Consider the functions p(x) = 2x + 5 and k(x) = 3x + b, where b is a real number. If p(k(x)) = k(p(x)), what does b equal?
Friday, February 3, 2017 by Anonymous

4th grade math
I need step-by-step help. I don't understand this at all. My homework problem is: Two friends cut a large candy bar into equal pieces. Harriet ate 1/4 of the pieces. Nisha ate 1/2 of the remaining pieces. Six pieces were left over. How many pieces was the candy bar originally ...
Thursday, February 2, 2017 by Harriet

Math
Allis drives 15 miles faster than diana. In the same time Diana travels 440 miles, Allie goes 560 miles. Find their speeds
Thursday, February 2, 2017 by Hayley

Math
find the area for the circle ( use 3.14 for pi ) show your work round to the nearest tenths . 23 yd
Thursday, February 2, 2017 by Help i'm such a dumbo :(

Math
chandra has 3 liters of a 28% solution of sodium hydroxide in a container. What is the amount and concentration of sodium peroxide solution she must add to this in order to end up with 7 liters of 48% solution?
Thursday, February 2, 2017 by Ashley

math
use the distance formula to find the distance between the points (-3,8) and (-4,-1) round to the nearest hundredth if neccesary
Thursday, February 2, 2017 by help

math
What is the value of x + y in the solution to the system of equations below? x + 8y = 2 y = -0.25x I just need the best explanation so i can do all my other problems cause im confused.
Thursday, February 2, 2017 by edgard

check my work..math grade 8...surface area
A men's basketball is about 24.3 centimeters in diameter, while the diameter of a women's basketball is about 23.4 centimeters. What is the ratio of the surface area of a men's basketball to the surface area of a women's basketball? Round your answer to the nearest hundredth. ...
Thursday, February 2, 2017 by mark

Math
A recipe calls for 2 2/4 cups of raisins but Julie only has 1/4 cup measuring cup.how many 1/4 cups does Julie need to measure out 2 2/4 cups of raisins?
Thursday, February 2, 2017 by Tony

MATH
Is 1/5 a Irrational number Rational neither
Thursday, February 2, 2017 by Amy

Math
Yoour goal is to save at least $240.00 over the next 4 weeks.How much must you save each week in order to meet that goal. Write and solve an inequality. a)4x>240;x>60 b)x>240;x>4 c)240x>60;x>60 d)4x<240;x<60******* ALL OF THE SIGNS WHERE EITHER GREATER ...
Thursday, February 2, 2017 by Cow

math
write 0.75 as a fraction
Thursday, February 2, 2017 by Anonymous

Math
12 girls and 20 boys signed up to play n a basketball tournament. Each team needs to have an equal number of girls and boys. What is the greatest number of teams possible
Thursday, February 2, 2017 by Kallie

Math
You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is 0.109. How confident can you be that your predicted value will be reasonably close to the actual value? • a) I can’t be confident at ...
Thursday, February 2, 2017 by Apple

math
5 teachers can mark 60 exams papers in 4 hours how long will it take 3 teachers to mark all 60 papers
Thursday, February 2, 2017 by proportion

math
Linda works 3 days per week at $6 per hour. If she works 4 hours per day how many weeks will it take Linda to earn $350?
Thursday, February 2, 2017 by Jennifer

Statistics Math
Let A and B be two exclusive events with P(A)=.2 and P(B) =.3. Find P(A|B)
Thursday, February 2, 2017 by Nicole

Math
Write the equation of a line that is perpendicular and that passes through the given point. y+2=1/3(x-5);(-4,3) I need help with this problem
Thursday, February 2, 2017 by DayLA

Math
Edit Write a differential equation to express (a) The rate at which the volume of a sphere changes with radius is proportional to the square of the radius. b) Gravitational attraction F between two given bodies of masses m1 and m2 decreases with the distance between them. The...
Thursday, February 2, 2017 by Deya

Math
I have 20 centimeters of yarn. I have 15 balls of yarn that each measure 3 meters long. How many bookmarks can I make?
Thursday, February 2, 2017 by Pam

Math
Robert wants to build a square sandbox that has an area of 25 feet
Thursday, February 2, 2017 by Bella

Math
The perimeter of a triangle is 43 feet.The small side is three was in the middle side, and the largest size to less than twice the middle side. What is the length of the longest side?
Thursday, February 2, 2017 by Anonymous

Math
what is 4+9 to the second power divided by 3x2-2
Thursday, February 2, 2017 by Christina

Math
Using only 7,6,5 and 3 once, how can I make the number 75? Using division, multiplication, adding and subtracting. With parenthesis!!
Thursday, February 2, 2017 by Kaylee niece

Math
Three scientists are observing Rickey and Riley, laboratory rats, to see how long each rat takes to find a piece of cake in a maze. The maze is a large box with open pathways running north-south and east-west in a grid pattern. Riley takes the direct route by traveling three ...
Thursday, February 2, 2017 by Anonymous

math
findmBACandmDAB in the figure shown below
Thursday, February 2, 2017 by puppydog

Math m1
A car of mass 1 tonne is towing a trailer of mass 400kg. They are connected by a rigid rod. Initially they are travelling at a constant speed. The car then accelerates. If the force in the rod is 600 N, find the acceleration of the car and the driving force of the engine.
Thursday, February 2, 2017 by Stephan

Math
Fill in missing values for a rectangular prism? Length is 8. Width is missing. Height is 14. Surface area is missing. Volume is 324.8
Thursday, February 2, 2017 by Liza

Statistics (elementary probability theory)
In an examination 60 candidates offer maths, 80 offer english,and 50 offer physics, if 20 offer maths & english, 15 offer english & physics, 25 offer math & physics and 10 offer all the 3. How many students entered to the examination ?
Thursday, February 2, 2017 by Bulama dgn

MATH
Scale 3 cm = 50 miles 1. Did you know Chillicothe was once the capital of Ohio? The distance from Chillicothe to the current capital, Columbus, is 48miles. Using the scale on the map how many centimeters apart are the two cities? Make sure you label your answer. 2. You are ...
Thursday, February 2, 2017 by Shawn

math
On Monday the temperature was 50 degrees the temperature increased by 22%. what was the temperature on Tuesday. 72 degrees 65 degrees 56 degrees 61 dgrees
Thursday, February 2, 2017 by A!

Math/ slope
write equation of line through the point ( -3,2) and slope of 1/4 in slope intercept form
Thursday, February 2, 2017 by Nicki

Math
5x - 4y =-3 Y = -3x + 5 Solve for x and y How do we solve for x and y when the formats of the equations are different. That's we here I'm lost. When I try to get the answer I get confused
Thursday, February 2, 2017 by Jackie

Math
Charles is going camping with hisis family. Their campsite is five eighths 5 8 mile away. They walk at a steady speed of 1 and one fourth1 1 4 mi divided by hmi/h. How many minutes will it take them to get to the​ campsite?
Thursday, February 2, 2017 by Jack

Math
A woman drove her car on a road running due north at a given rate for 6 hours. She continued her trip on an unsaved road due east for 5 hours at a rate of 4mph slower. Had she been able to go to her destination in a straight line from her starting point and at her original ...
Thursday, February 2, 2017 by Joey

Math
8x + 14y = 24 6x + 7y = 10 We are suppose to solve for x and y but I don't get the right answer
Thursday, February 2, 2017 by Adam

Math - fractions
Name 2 fractions between 1/2 and 5/7
Thursday, February 2, 2017 by Gursimran

Math
Mike and Jennifer are preparing for a race. On Friday, Mike ran for 3 2/5 hours and Jennifer ran for 4 3/4 hours. How much longer did Jennifer run (in minutes)? I know that 3 hours= 180 mins 4 hours = 240 mins But I'm not sure what the fractions would be, and when I tried to ...
Thursday, February 2, 2017 by Micheal

Math
If (a) varies directly as (b) and b= 20 when a= 4, find (b) when a=60 I don't understand this question at all
Thursday, February 2, 2017 by Kendall

Math Help Pleaseee
Find the surface area for the given prism a. 564in^2 b. 664in^2 c.1,120in^2 d.1,080in^2
Thursday, February 2, 2017 by Mrs.Dummy

Math
Frank has $20 less than Tracy. John has twice as much as Frank. Patty has three times as much as John. Together they have $340. How much does each person have? I tried multiple different numbers but they were either more or less then $340
Thursday, February 2, 2017 by Natasha

Math
How can I find the equation for x From (x/y) = (x+a-b)/z
Thursday, February 2, 2017 by Afeef

Math--Matrix
Q1. Suppose A= ( -1 2 -3 -4 3 2 1 3 1 ), then the determinant of this matrix is? Q2. Suppose det ( 1 2 3 1 4 5 y 4 5)=0, then y=?
Thursday, February 2, 2017 by RA

Math--Matrix
Suppose A = ( 6 9 -1 -4). Then the largest eigenvalue of A is? The smallest eigenvalue of A is?
Thursday, February 2, 2017 by RA

Math--Matrix
Suppose v= (1 x) is a 3-eigenvector of A= (5 -1 6 0), then x=?
Thursday, February 2, 2017 by RA

Math (Algebra 2)
What is the probability of choosing an H or a vowel? Honorable is the word. This is how I answered it Its mutually exclusive because of the key word "or" which is the Union. P(H)+P(Vowel)=1/9+4/9 Answer is 5/9 did I solve this right? Thanks
Thursday, February 2, 2017 by Hannah

math
10-2+3x5 no parethesis
Thursday, February 2, 2017 by Donna

Math 1100
A pipe 24ft long is cut into four pieces, the first 4ft long, the second 5ft long, and the third 7ft long. What is the length of the remaining piece ?
Thursday, February 2, 2017 by Gabby

math
1. Clay is on the basketball team at his high school. In one game, he had a total of 20 points, made up of 2-point and 3-point baskets. If he made a total of 9 baskets, how many of each type shot did he make?
Thursday, February 2, 2017 by shatesia

Math
Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7 I found this example solution online: a). f(x) = 3x + 7 and g(x) = x x <= 3x + 7 <= 4x for all x > 7 I need help making sense of this so I can apply it to my work. ...
Thursday, February 2, 2017 by Winston

math
I buy 6 CDs for $6.99. How much change do I get from $50? Please does it mean one CD $6.99 or 6 CDs total $6.99? Cheers!
Thursday, February 2, 2017 by Han

Math
Question! If you put a bacteria in a beaker that doubles itself every minute at 11 and it's full at 12 at what time is it half full
Thursday, February 2, 2017 by Sagar

math
I bought 3 oranges for 29p and 2 drinks for 90p. How much did I spend altogether? Does it mean 29p for each organes or for all 3 oranges? cheers!
Thursday, February 2, 2017 by Han

MATH
RAQUEL IS NOW 3YRS OLDER THAN BEN.IN 5 YRS,THE SUM OF THEIR AGES WILL BE IS HOW OLD ARE THEY NOW?
Thursday, February 2, 2017 by ADELANE MAHINLO

Math
Emily drives 1000km in the first week of her journey. Every week Emily increases the distance by 50%. So, in the second week she drives 1500km, and in the third week she drives 2250km. How far will she have travelled altogether after 5 weeks? A. 5062.5km C. 9650.5km B. 8125....
Thursday, February 2, 2017 by Anonymous

Math
Leslie used more than a 1/2 cup but less than 1 whole cup of flour for recipe. what fraction of a cup Leslie used. Explain.
Thursday, February 2, 2017 by Ashley

Math
How many pieces 3/7 of a foot each can I make out of 7/2 feet of rope?
Thursday, February 2, 2017 by Grace

math
Solve: a toy store has 38 red spiders. It has 43 black spiders. Does it have more red spiders or black spiders? 38<43
Thursday, February 2, 2017 by Anonymous

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