Sunday
September 25, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

MATH
1.Which of the following is greater than 4.3 x 10^9. A. 2.1 x 10^9 B. 3.2 x 10^9 C. 5.3 x 10^9 D. 7.4 x 10^8 2.Which of the following is less than 6.5 x 10^-5. A. 1.4 x 10^-3 B. 2.5 x 10^-4 C. 7.8 x 10^-5 D. 4.6 x 10^-6 3.According to this 2010 census, the population of ...
Thursday, September 22, 2016 by Anuenue

Math
Use the clue bellow to find the mystery number: - The mystery number has 3 digits - The sum of the digits in the mystery number equals 16 - The mystery number is greater than 800 and less than 825 - All digits in the mistery number are even.
Thursday, September 22, 2016 by Henry

Math
What is mental math in times 3 digits like 8times25times23?
Thursday, September 22, 2016 by Tisari

Math
I need help with decimal Bedmas, I find that when I use a calculator and split up the equation into the proper sections the awnser sometimes out wrong. I don't know what im doing wrong. eg. 2.3 (4.5-9.6)+3.1= (4.5-9.6)= -5.1. 2.3x-5.1=-11.73+3.1=-8.63.
Thursday, September 22, 2016 by J. A.

Math
A jet can travel 460 miles per hour, how far can it travel between 8:00 am 10:00 am?
Thursday, September 22, 2016 by CANT TELL YA

math
each student needs 2/5 of a cup of play dough to build a house. How many cups of play dough are needed for 9 students?
Thursday, September 22, 2016 by Michael

Math
Dori claims that 3.52 is not a rational number because it is not written as a ratio of integers. Is she correct? Explain why or why not.
Thursday, September 22, 2016 by Sydney

Math
The bearing of P from Q is 140degree and that of X from P is 315degree. If |PQ|=36km, and |PX|=55km, find |QX| and the bearing of Q from X.
Thursday, September 22, 2016 by Anonymous

Math
Start at 5. Create a pattern that adds 3 to each number. Stop when you have 5 numbers.
Thursday, September 22, 2016 by Don

Math
Let A = {x: x 3x=6}. Does A? My answer: A ≠ 2 because x = 2 and x is an element of set A. Thus, A = {2}, but A itself is not equal to 2.
Thursday, September 22, 2016 by NR

math
[(8^2- 4) - 6]/6= Please teach me show steps
Thursday, September 22, 2016 by help

math
Pencils sell for 18 cents each, and pens sell for 69 cents each. How much would 14 pencils and 11 pens cost?
Thursday, September 22, 2016 by Diontay

math
The information below represents the cost of Michelle's car ownership for last year. What is her average monthly expenditure related to her car? ● Auto loan of $498.89 per month ● Auto insurance of $68.12 per month ● Gasoline expenditure of $1,740.00 for ...
Thursday, September 22, 2016 by Scribble

math
Each test grade in Sara's science class counts for 1/6 of the final grade. The final exam counts for 1/2. Sara's test scores are 72, 84, and 90. Her final exam score is 90. What is Sara's final grade for the class? A) 83 B) 86 C) 87 D) 89
Thursday, September 22, 2016 by Scribble

math
a car traveling 64 miles per hour passes a bus traveling 53 mph in the same direction on the highway, if they maintain their speeds, how long will it take them to be 17.5 miles apart
Thursday, September 22, 2016 by jason

math
x^3-(p+q-r)x^2+(pq-pr-qr)x+pqr How to factor this??
Thursday, September 22, 2016 by anon

Math
My car gets 24 miles per gallon I put 15.1 gallons of gas in my tank how many miles can I drive on 15.1 gallons of gas?
Thursday, September 22, 2016 by Julie

math
you buy refrigerator for 12,800 and make a down payment of 2,500. if ypu finance the remainder at 8% annually for 3 years, how much will you actually pay for the refrigerator?
Thursday, September 22, 2016 by Arvee

Math
Ron johns 16 card to my deck of 52 cards the deck is made up of card to four different colors red blue yellow and green how many of the cards drawn can Ron expect to be green?
Thursday, September 22, 2016 by Hazel

math 101
a student has ten posters to pin up on the wall of her room, but there is space for only seven. in how many ways can she choose the posters to be pinned on the wall?
Thursday, September 22, 2016 by arvee

MATH HELP
What is the simplified form of the expression? Hint: Combine like terms 7m2 + 6.5n – 4n +2.5m2 – n A)9.5m2 + 1.5n B)4.5m2 + 1.5n C) 9.5m2 – 1.5n Which property is illustrated by the statement? 8 + 3.4 = 3.4 + 8 A)Associative Property of Addition B) Commutative ...
Thursday, September 22, 2016 by ASTROLATER

Math
In an examination of 100 marks a person attempted 77 questions and got 42 correct answer and 35 wrong answer. If each correct answer carried 2 marks and wrong answer carried 0.50 marks. How much total marks the person scored?
Thursday, September 22, 2016 by Praveen

Math
Emma estimated the first digit in the quotient of 2,183 ÷ 42 as 4. She adjusted the quotient. What did zhe do wrong? Explain
Thursday, September 22, 2016 by Mary

math
The unit digit of a 2-digit number is greater than the tens digit by 3. If the product of the digit is 18 find the number
Thursday, September 22, 2016 by 123

Math
Roy takes 1h54sec for doing his homework everyday.How much he spend doing his homework in a week?
Thursday, September 22, 2016 by Soumoli

Math
Roy takes 1 hour 54 sec for doing his homework everyday.how much time does he spend doing his homework in a week?
Thursday, September 22, 2016 by Soumoli

Math
the sum of the digits of a 2 -digits number is 9.The new number obtained by interchanging the digits exceeds the given number by 27. find the given number
Thursday, September 22, 2016 by Bablu

Math
The sides of a triangle is 6,8,15 cm long. in a similar triangle, the longest side is 21 cm long find the two sides.
Thursday, September 22, 2016 by Jason

math
two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will they meet if they start at the same instant?
Thursday, September 22, 2016 by chelsy

math algebra
two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will they meet if they start at the same instant?
Thursday, September 22, 2016 by chelsy

math algebra
at how many minutes after 3pm will the minute hand of a clock overtake the hour hand?
Thursday, September 22, 2016 by chelsy

math algebra
a motorboat, which can travel at 20 miles per hour in still water, takes 3/5 as long to travel downstream on a river from a to b, as to return. Find the rate of the rivers current.
Thursday, September 22, 2016 by chelsy

math
a man accepts a position at 14,250 basic salary with agreement that he will receive a 2% increase every year for 3 years. what will his salary be at the end of 3 years
Thursday, September 22, 2016 by arvee

Math
The volume of a certain quantity of gas is inversely proportional to its pressure. If its pressure is 1000 grams per square cm, when its volume is 3m³, what will the pressure be when the gas is compressed to a volume of 2m³? (Thanks in advance in helping me here)
Thursday, September 22, 2016 by Jason

Math
Vic and Ben's ages are in the ratio of 3:4. If Vic is 12 years old and 3 months old how old is Ben in years and months?? *Thanks in Advance for Helping me answer this question*
Thursday, September 22, 2016 by Mika

Math
Two brothers are respectively 5 and 8 years old. In how many years will the ratio of their ages be 4:5
Thursday, September 22, 2016 by Mika

Math
Find the greater of two numbers in the ratio 7:9 whose difference is 10
Thursday, September 22, 2016 by LAncelot

Math
Reason does (4+5)+2=9+2? Explain
Thursday, September 22, 2016 by Liezel

Math
Reason does (4+5)+2=9+2?explain
Thursday, September 22, 2016 by Hazel

math
the sum of one and the product of one and number x how would you wite this
Thursday, September 22, 2016 by Aubrey T.

math
Write the quadratic equation whose roots are −4 and 6, and whose leading coefficient is 5.
Wednesday, September 21, 2016 by .

Math
The table shows information about the number of sweatshirts sold and the money collected at a fundraiser for school athletic programs. Sweatshirts Sold 3 5 8 __ 12 Money Collected 60 _ _ 180 _ The above is supposed to be a ratio table but I am not sure on how to find out the ...
Wednesday, September 21, 2016 by Matt-Please Help

Math
There are four seats in a row of a bus except the last row which has 5 seats. The total number of seatsican be written as 5 + r x 4. Determine the number of seats in a bus for each value of r.
Wednesday, September 21, 2016 by Anonymous

Math algebra
(a+b)(a-b)
Wednesday, September 21, 2016 by Sunil

MATH HELP
1)What is the simplified form of the following expression? 2x^2y+3x^2+4y+3x^2y+2y A)5x^4y^2+3x^2y+2y B)8x^2y+6y^2 C)5x^2y+3x^2=6y D)14x^2y 2)Simplify the following expression 1/3 (21m+27) A)7m+27 B)7m+9 C)63m+9 D)7m+81 3) What is the sum 7/4+(-1/5) A)31/20 B)39/20 C)6/9 D)-7/...
Wednesday, September 21, 2016 by ASTROLATER

Math
There are two rectangles that are similar. One rectangle has an area of 24 and the other has an area of 15 how do you find the ratio of the area of the first rectangle to the area of the second rectangle?
Wednesday, September 21, 2016 by Jordan

Math (Geometry)
What is the converse of this statement: if two angles are supplementary and congruent, then they are right angles.
Wednesday, September 21, 2016 by Zoey

math
the sum of the ages of kristen and ben is 32 four years ago kristen was twice as old as ben how old are they both now
Wednesday, September 21, 2016 by Anonymous

Math
4) The sum of an infinite geometric series is 100. The second term of the series is 24. Find two possibilities for a (the first term) and r (the common ratio). b. Given, 5 2 4 a a a    159 and 4 1 3 a a a    265 , find ...
Wednesday, September 21, 2016 by Susan

Math
The measure of angle BCA is: A) 30 degrees B) 36 degrees C) 45 degrees D) 60 degrees It is a iscoles triangle which the number 3x on the top of the triangle angle A and a line extending to D going right from A and Angle B is at the bottom left corner A and angle C is at the ...
Wednesday, September 21, 2016 by Lia

Math
All students in Peter's class have $1.05, consisting of nickels and/or dimes and/or quarters. Each student has a different combination of coins, and all possible combinations of coins are included. What is the probability that Peter is unable to give his friend Jenny ...
Wednesday, September 21, 2016 by Thomas

Math
From a point P on the ground which is 100m from the foot of a church tower, the angle if elevation of the top of the tower is 50 degrees calculate the height of the tower...
Wednesday, September 21, 2016 by Phil

Math
All students in Peter's class have $1.05, consisting of nickels and/or dimes and/or quarters. Each student has a different combination of coins, and all possible combination of coins are included. What is the probability that Peter is unable to give his friend Jenny change...
Wednesday, September 21, 2016 by Thomas

Math
Find the distance d(p1,p2) between the ponts p1 and p2. P1=(-4,3); P2= (6,0) d(P1,P2)= _____ Type an exact answer, using radicals as needed.
Wednesday, September 21, 2016 by Sully

Math
Which is greater the sets of (5-2) or two sets of(2+3) draw a diagram to support your conclusion
Wednesday, September 21, 2016 by Trevor

Math
Pamela can run 100 meters in 12.5 seconds and Josalin can run 150 meters in 20 seconds. If they both ran a 400 meter race at this rate, how many meters ahead would Pamela cross the finish line before Josalin?
Wednesday, September 21, 2016 by lara

Math
The number is closer to 60 than to 70. It is one number closer to65 than 68 is.
Wednesday, September 21, 2016 by Lynn

Math
Pamela can run 100 meters in 12.5 seconds and Josalin can run 150 meters in 20 seconds. If they both ran a 400 meter race at this rate, how many meters ahead would Pamela cross the finish line before Josalin?
Wednesday, September 21, 2016 by Laila

Math
A fertilizer covers 5/8 square foot in 1/4 hour. i don't understand how to work out this math problem. By the way i'm in 6th grade but technically doing advanced math so i'm doing 7th grade math. I don't know how to do this
Wednesday, September 21, 2016 by niki

MATH
a drug has a half life of 5 hours. write the exponential function that gives the concentration of the drug over time assuming an initial concentration of 2 mg/ml
Wednesday, September 21, 2016 by Matt

math
find the next three terms in 18,27,36,45
Wednesday, September 21, 2016 by nicole

Math
Please how to solve the equations: y=4-3x and x=4y-6 Thank you
Wednesday, September 21, 2016 by Anonymous

Math
There are 40 tables in a library, with 30% of them seating 44 people. The tables remaining only seat 22 people. How many seats are there in the library?
Wednesday, September 21, 2016 by Boo

math
How can you use repeated subtraction to find out how many groups of 4 are in 20
Wednesday, September 21, 2016 by Sabrina

Math
A cup of cereal has 1212 grams of fiber, which is 40%40% of the recommended daily allowance. What is the recommended daily amount?
Wednesday, September 21, 2016 by Boo

math
Least to greatest square root of 5, 2.5 or square root of 3
Wednesday, September 21, 2016 by mya

Math
Two bus services A&B arrive at the station. service A arrives every 15 minutes, service B arrives every 20 minutes. The first bus arrives at 8 o'clock. When will both buses arrive at the station again?
Wednesday, September 21, 2016 by Denise

Math
It's a riddle question. All six digits in the number even remember that zero is an even number one digit is use once and all the other digits is used twice is four times the hundreds digit 10 digit is the difference of the ones digit in the hundred digit is the same digit ...
Wednesday, September 21, 2016 by Maria

Math
Grouping 2m^2+m-2m
Wednesday, September 21, 2016 by Tim

math
marlene has 3 pieces of lace each measuring 1/7 meter, 5/15 meter and 3/7 meter. How long are pieces of lace put together?
Wednesday, September 21, 2016 by christine miranda

Math
A very large book has pages numbered from 1 to 11521. How many times is the digit 3 printed?
Wednesday, September 21, 2016 by Albert

Math
Maggie has a ribbon 27 feet long what is the length of the ribbon in the yard
Wednesday, September 21, 2016 by Dimaomd

Math
How do you figure this problem out I am trying to help my son with his homework but can't figure out how to solve problem. 18+9x(5+4)divide 3-5
Wednesday, September 21, 2016 by Anonymous

Math
The ratio of pens to pencils is 7:9. If there are 27 pencils, hoe many pens are there?
Wednesday, September 21, 2016 by Qiana

Math
william had 30 dollars. he spent one third on a book and save the rest. how much was the book and how much did he save
Wednesday, September 21, 2016 by Trev

Math :)
A pie chart is drawn to represent the numbers x, x+2 and 8. If the angle at the centre of the sector representing x+2 is 120 degrees, find the value of x.
Wednesday, September 21, 2016 by Grace

Math
5/5334
Wednesday, September 21, 2016 by Kayla

Math for Ms. Sue
A geometry class has a pizza party. there are 14 students that have a pizza. Each pizza has 8 slices. The teacher wants to buy the least number of pizzas so that they are the same number of slices for each student. (I know the answers, but I don't know how to show the work...
Wednesday, September 21, 2016 by Frustrated

Math
The lowest common multiple of two numbers is 36, one number is 12, what might the other number be?
Wednesday, September 21, 2016 by Dania

8th Grade Math-exponents
Let me try writing it again... (X/2)^3*(X/2)^4 --------------------- (X/2^3)^2 I keep getting X/2^6, but the book says X/2^5. How do you get X/2^5????
Wednesday, September 21, 2016 by Logan

math
What is the solution to r/-3=12?
Wednesday, September 21, 2016 by Valerie

8th grade math-exponents
I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th ...
Wednesday, September 21, 2016 by Logan

Math
What is the solution to 5q=-75? Please Help
Wednesday, September 21, 2016 by Valerie

math
1. Which of the following numbers is a rational? A. 4/5 B. square root of 27 C. 4.02002000200002... D. Square root of 31 2. Which type of number is shown below? 0.313311333111... A. repeating decimal B. rational C. irrational D. terminating decimal 3. Select all the rational ...
Wednesday, September 21, 2016 by bob

math answer check
10. Knowing that you use 245 KWH 7am – 7pm and 165 KWH 7pm – 7am, answer the follow questions using the chart below. Constant Usage $0.05324/ KWH Daytimer (Most usage between 7am­7pm) · As long as most power used is 7am – 7pm, then you receive a 20% ...
Wednesday, September 21, 2016 by Anonymous

Math - check answer
Frogs have been breeding like flies at the Enormous State University (ESU) campus! Each year, the pledge class of the Epsilon Delta fraternity is instructed to tag all the frogs residing on the ESU campus. Two years ago (t = 0) they managed to tag all 58,000 of them (with ...
Wednesday, September 21, 2016 by Amanda

Math
Need help with adding subtracting decimals. In this unit, you learned about fractions that can be written as terminating decimals and fractions that can be written as nonterminating decimals. Create an addition word problem and a subtraction word problem using fractions. Show...
Wednesday, September 21, 2016 by Math plz help asap!

Math
A farmer has 100.00 and he has to buy 100 budgies blue ones cost 10.00 green ones cost 3.00 and yellow cost .50 he has to buy at least 2 yellow and he can only spend axactly 100.00. This is a fifth grade math problem. I am a grandma trying to help my 10 year old grandson. I ...
Wednesday, September 21, 2016 by SandyReitan

Math
Need help with adding subtracting decimals. In this unit, you learned about fractions that can be written as terminating decimals and fractions that can be written as nonterminating decimals. Create an addition word problem and a subtraction word problem using fractions. Show ...
Wednesday, September 21, 2016 by Math plz help asap!

Math
John painted 1/2 of a pole white and 3/8 of it green. What is the fraction he painted?
Wednesday, September 21, 2016 by Kevin

Math
Two figures are similar with a similarity ratio of 4 and one side of the figure is 3 cm long. Find the lenght of the side of the similar figure. I don't really know if I have to try to do it like an equation or if there's a formula for this. Sorry if anything's ...
Wednesday, September 21, 2016 by Marta

8th grade math-exponents
I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th ...
Wednesday, September 21, 2016 by Logan

Math
Solve (degrees): 3sin^2(x)-11sin(x)-4=0 It's just a quadratic but doesnt wprk?
Wednesday, September 21, 2016 by R

Math
If 2016 people are on the circle, then who is the winner? And how can 2016 be related to the numbers such as 4,16, 24, and ect. If it doesn't multiply by the power of 2? Please help! I know that the numbers are multiplied by the power of 2 and 2016 can't but will the ...
Wednesday, September 21, 2016 by Anonymous

Math
I'm a parent and I my son had a test and this problem was wrong so I'm here trying to figure it out (3/4)3 can you help me please thank you
Wednesday, September 21, 2016 by Lurina

Math
Simplify: ((4/x)^(n-m))×((2x^2)^m) I don't even know where to start
Wednesday, September 21, 2016 by A

Math
It's a riddle question. All six digits in the number even remember that zero is an even number one digit is use once and all the other digits is used twice is four times the hundreds digit 10 digit is the difference of the ones digit in the hundred digit is the same digit ...
Wednesday, September 21, 2016 by Maria

math
A nut company produces two types of mixtures, regular and deluxe. The company is donating bags of mixtures for school picnic. A bag of regular mix has 4 oz of peanuts, 1 oz of cashew, and 3 oz of almonds. A bag of deluxe mix has 3 oz of peanut, 1 oz of cashew, and 5 oz of ...
Wednesday, September 21, 2016 by rolly

Math
A football coach divides 42 players and 12 coaches into groups. Each group will have the same number of players and coaches. What is the greatest number of groups that can be formed. Answer: 6 groups
Wednesday, September 21, 2016 by Matt-Please Help

Math
Find the area of parallelogram if side AB = 10 cm,BC=15 cm,Diagonal =20 cm.
Wednesday, September 21, 2016 by Rajeev

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