Tuesday
May 24, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
You wish to have $12,500 in 12 years. Find how much you should invest now at 12% interest, compounded quarterly in order to have $12,500, 12 years from now.
Thursday, April 28, 2016 by vickie

MATH
Evaluate the following expressions: a. 110 b. c. Are the answers to parts a and be the same? Explain why or why not. (3 points)
Thursday, April 28, 2016 by PACMAN

Math
A rectangular parking lot has an area of 2/3 of a square kilometer. The width is 1/2 of a kilometer. What is the length, in kilometers, of the parking lot?
Thursday, April 28, 2016 by Nikki

,math
given the quadratic equation expression x^2+10*x+12 find the turning point of its graph by using the technique known as completing the square.
Thursday, April 28, 2016 by @@prit

math
what is the similarly with the number 85,17.19 and 2
Thursday, April 28, 2016 by santos

math
your barangay officials are planning to raise funds to help the public library.they decided to sell 4000.00 draw tickets worth 10 each. one ticket will win the prize worth 3,500.00. five tickets will each win a prize worth 700.00 each and three tickets will each win the prize ...
Thursday, April 28, 2016 by andrea

Math
How much shorter is to walk diagonally across a rectangular field that is 24cm long and 18cm width than along two of its adjacent sides.
Thursday, April 28, 2016 by Santanu

math
Paul spent a half hour practicing piano and 3/8 hour practicing guitar how much time did he sPend in all practicing?
Thursday, April 28, 2016 by meg

Math
A childs rectangular pool is 12 feet long 6 feet wide and 3 feet deep what is the volume of water it can hold
Wednesday, April 27, 2016 by Juan belman

math
A necklace is made up of 50 spherical beads. Each bead has a radius of 8 millimeters. What is the volume of the necklace? What is the surface area?
Wednesday, April 27, 2016 by shannon

8th grade math - system of equations
I'm not sure how to solve these. Solve using any method (substitution or elimination) 23. The sum of two numbers is 27. The larger number is three more than the smaller number. What are the two numbers? Ans: l = large; s = small l + s =27 and l = 3S 3s + s =27 4s =27 4s/4...
Wednesday, April 27, 2016 by Alexis

math
a container is coated with 2 layers of specialty paint that costs $6.05 each jar of paint covers 800 cm how does the paint cost
Wednesday, April 27, 2016 by qazi

Math
A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?
Wednesday, April 27, 2016 by Nate

Math
Sam had foreign stamps and local stamps. After giving 1/4 of his foreign stamps and 11 local stamps, he had an equal number of foreign and local stamps. How many local stamps did he have in the beginning? I got 32 for the answer by guessing and checking but what equation would...
Wednesday, April 27, 2016 by Aly

Math
Ethan had $12 more than Dakota. Ethan then gave 1/3 of his money to Dakota. The ratio of money Ethan had to the amount of money Dakota had then became 5:7. How much money did Ethan give to Dakota?
Wednesday, April 27, 2016 by Chloe

Math
Emilio left Main Road at 8 A.M and arrived at Lame Lane at 2 P.M. His average for the whole journey was 60 mph. For the first 70% of the trip, he drove at an average speed of 65 mph. For the next 25% of the remaining trip, his average was 54 mph. Find his average speed for the...
Wednesday, April 27, 2016 by Aly

math
what number am I? My ten-thousands digit is 4 less than my thousands digit. My thousands digit is 3 times my hundreds digit. My hundreds digit is 1/2 tens digit. My tens digit is 6. My ones digit is 3 more than my tens digit.
Wednesday, April 27, 2016 by Mary

Math
What is the mystery number sentence? Its factors are divisible by 3. Its factors are divisible by 10. Its product is greater than 2500. Its product is less than 3000.
Wednesday, April 27, 2016 by Mary

Math
Martin paid $120 towards his $2400 credit card bill. What percentage of his bill did he pay?
Wednesday, April 27, 2016 by Cindy

Math
ann went shopping and spent half her money on a dress a third on a t shirt and a tenth on a cd . She returned with 15 dollars . how much money did she have to begin with
Wednesday, April 27, 2016 by Rodney

Math/ELA
What can I do now as a 7th grader to prepare and save for college
Wednesday, April 27, 2016 by Sarah

Math
ann went shopping and spent half her money on a dress a third on a t shirt and a tenth on a cd . how much money did she have to begin with
Wednesday, April 27, 2016 by Rodney

math
how long would it take money to triple in an account with a one-time deposit earning 9% interest compounded two times per year?
Wednesday, April 27, 2016 by brooke

Math
In the formula d=rt d represents distance in miles, r represents average speed in miles per hour, and t represents time in hours.What is an automobiles average speed if it travels 60 in 1 1/2 hours?
Wednesday, April 27, 2016 by Liz

Math
Kairi and Jacob have $80 for movies and dinner. If the movies cost $12 per person and $10 for a large popcorn and two pops, how much money do they have left for dinner? What equation would be best to use for this problem?
Wednesday, April 27, 2016 by Tori

Math
The yogurt cart has the following three flavors: chocolate, vanilla, and strawberry. Yogurt comes in a cup or a cone. You can have no sprinkles, chocolate sprinkles, or rainbow sprinkles. How many different choices are there?
Wednesday, April 27, 2016 by BJ

MATH PLS HELP
19 WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work. You can use the comments field to explain your work. Your teacher ...
Wednesday, April 27, 2016 by zed

math
A fish in an aquarium is 4 feet long. A scale model of the fish is 2 inches long. What is the scale factor?
Wednesday, April 27, 2016 by Johana

math help please
An art teacher had a total of t markers. He gave an equal number of markers to each of 18 students and had 16 markers left over. Which equation could be used to find n , the number of markers each student received? A t = 18n B t = 34n C t = 18n + 16 D t = 16n + 18 Please show ...
Wednesday, April 27, 2016 by math

Math
How can i find misleading graphs on the news online??
Wednesday, April 27, 2016 by Rose

Math
The scariest dining of requip there are 450 students and 50 on each School Bus. How many buses are needed to take in the trip? If 10 more students decide to come, how many buses do you need then?
Wednesday, April 27, 2016 by Abby

Math
A wall is 8 feet high and 10 feet long. How much wallpaper is needed to cover it?
Wednesday, April 27, 2016 by AA

Math "Need Help Asap"!
1..)Which of the following are independent pairs of events? Check all that apply. A.Flipping two coins and having one show a head and the other show a head B.Being sneezed on and catching a cold C.When rolling a pair of dice, getting a total of 6 and having one die show a 3 D....
Wednesday, April 27, 2016 by #FreeGucci

Math "Need Help Asap"!
1. Which of the following is an example of a dependent event? (1 point) A.flipping two coins B.rolling a number cube and spinning a spinner C.choosing two scoops of ice cream D.choosing a cookie at random, eating it, and then choosing another at random 2. Which of the ...
Wednesday, April 27, 2016 by #FreeGucci

Math
Dana has carpet squares that are 1/2 yards wide. She has a hallway that is 4 1/2 yards by 3 yards that she needs to cover. How many carpet squares does Dana need?
Wednesday, April 27, 2016 by Nathan

Math "Need Help Asap"!
1.)There are 35 marbles in a bag:9 blue marbles, 8 marbles, 4 red marbles, 4 red marbles, 8 white marbles, & 6 yellow marbles. Find P(Red). Write the probability as a fraction in simplest form, a decimal, & a percent. A.)4/31, 0.129, 12.9% B.)4/35, 0.114, 11.4% C.)1/7, 0.143, ...
Wednesday, April 27, 2016 by #FreeGucci

Math "Need Help Asap"!
-6(4x+9)
Wednesday, April 27, 2016 by #FreeGucci

Math "Need Help Asap"!
14.) 2^2/2^5 A.)8 B.)6 C.)1/8 D.)-8
Wednesday, April 27, 2016 by #FreeGucci

Math
1.)3^4/3^4 A.)3 b.)0 c.)1 d.)4 ?
Wednesday, April 27, 2016 by #FreeGucci

Math
how to find out length of a rectangle area given 18900cm'2 width 1.8 what is length in metres
Wednesday, April 27, 2016 by Alex

math
What is the probability of getting an even number when rolling a six-sided number cube? 0.5 5% 2/6 30% You place the letters for the word smart in a bag. What is the probability of choosing a letter that is NOT a vowel? (remember vowels A, E, I, O, and U.) 0.2 1/5 80% 0.75 You...
Wednesday, April 27, 2016 by FluttershyK22

Math
Its area is given as 18,900 cm2 and the width as 1.8 m. What is the backboard’s length in metres? m
Wednesday, April 27, 2016 by Alex

Math
what fraction of a pizza remains if Joe ate 4/5 of 1/2 a pizza
Wednesday, April 27, 2016 by Angie

Math
Can someone please explain to me how I can add fractions with UNLIKE denominators? Thanks!
Wednesday, April 27, 2016 by Gia

math 102
a box of light bulbs contains 95 good bulbs and 5 bad ones. if 3 bulbs are selected at random from the box, what is the probability that 2 are good and 1 is bad
Wednesday, April 27, 2016 by janae

Math
Simplify 8 square root 3 - 2 square root 40x^5 Divided by 2 square root x
Wednesday, April 27, 2016 by Heaven

Math(Radicals)
Simplify 2 square root 6 ( 3 square root 2 - 12) completely. If you could help me with this that would be great. The answer I get is 6 square root 12 - 24 square root 6, but I'm not sure if it's simplified completely. Thanks
Wednesday, April 27, 2016 by Heaven

Math
To the nearest tenth, find the area of a circle whose radius is 6 meters. Use 3.14 for pi.
Wednesday, April 27, 2016 by Matt

Math
Directions: Follow the instructions below to design a fair race for the new video game Animal Tracks. 1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. (I chose elephant which is...
Wednesday, April 27, 2016 by Anonymous JAK

Math
During a tournament, 4 players on the school golf team drank equal amounts of water from a 6-liter water jug. They drank all of the water. Which equation can be used to find the number of liters of water that each player drank?
Wednesday, April 27, 2016 by Anonymous

Math
Express y as a function on x Log(y+3)=logx^3-log(x-2)
Wednesday, April 27, 2016 by Cali

Math
In the SmallState Lottery, three white balls are drawn (at random) from twenty balls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten balls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and one number from 21-30. To ...
Wednesday, April 27, 2016 by Help plz

Math
What are the transformations of: f(x)=-log(2-x)+3
Wednesday, April 27, 2016 by Cali

Math
How do i express y as a function of x. Logy=1/3(logx-log27)
Wednesday, April 27, 2016 by Shawn

math
if 7 is added to a number and the sum is doubled, the result is 19 less than the number
Wednesday, April 27, 2016 by Anonymous

math
Solve each equation by using the Quadratic Formula. Round to the nearest tenth if necessary. 1.6x2 + 2x + 2.5 = 0
Wednesday, April 27, 2016 by Sally

Math
What are the transformations of: f(x)=-log(2-x)+3
Wednesday, April 27, 2016 by Shawn

Math
The size of a decreasing population is given by p(t)=P0(2)^-t/7 where p(t) represents the population as time, t, in years and p0 is the initial population what percent of the original population will be there after 10 years??
Wednesday, April 27, 2016 by Shawn

Math/Precal
An earthquakes magnitude is measured on the richter scale and "E" is the energy released in kilowatt hours. How much "E" was released when an earthquake measured 7.5 on the richter scale in guatemala in 1977? R=0.67log0.37E+1.46
Wednesday, April 27, 2016 by Pat

Math
Given the geometric sequence: 26, 2617, 26289, ⋯ Find an explicit formula for an, where the first term is a1=26. an= Find a6= please help out
Wednesday, April 27, 2016 by Anonymous

Math
5.)(m^2-m-4)+(m-5) Add Or Subtract ?
Wednesday, April 27, 2016 by #FreeGucci

Math "Need Help Asap"!
4.)In the expression "-5x- 4x^2 +9", what is the coefficient of "X"? A.)-4 B.)-5 C.)5 D.)9
Wednesday, April 27, 2016 by #FreeGucci

math
Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying 3%, one paying 5 1/2%, and one paying 6% simple interest per year. Cyndee wants to put twice as much in the lowest-yielding, least-risky account as in the highest...
Wednesday, April 27, 2016 by John

math
you need 1 1/4 cups of sugar to make 20 cookies. to make 6 cookies, you need___ cups of sugar?
Wednesday, April 27, 2016 by tommy

Math
When Scrooge tells Marley that Marley was always “a good man of business,” in Act 1, Scene 3 of A Christmas Carol: Scrooge and Marley, Marley responds, “BUSINESS!!! Mankind was my business. The common welfare was my business; charity, mercy, forbearance, ...
Wednesday, April 27, 2016 by Alex

math
At auction 390 vinyl records are sold. Ben buys 1/3 of them and 0.5 of what was left is bought by Sally. Rob buys the rest - how many is this?
Wednesday, April 27, 2016 by dw

Math
Let z and w be complex numbers such that |z| = |w| = 1, and zw is not equal to -1. Prove that (z + w)/(zw + 1) is a real number.
Wednesday, April 27, 2016 by Katie

Math
Allan gave 5/8 of his money to his son and then gave his daughter 1/2 of the remainder. He kept $150.00 for himself. How much money did Allan have at the beginning? How much money did his son get?
Wednesday, April 27, 2016 by Karen

math
what is the evaluation of 5!
Wednesday, April 27, 2016 by Abel

math
ad is the median of triangle abc. m,n are points on ab,ac. ad intersection mn =k. if mk=kn then prove that mn is parallel to bc.
Wednesday, April 27, 2016 by Meghana

math
Find an equation of the line that (a) has the same y-intercept as the line y+2x-12=0 and (b) is parallel to the line 5x+12y=8 Write your answer in the form y=mx+b
Wednesday, April 27, 2016 by anonymous

math
Using the simple interest formula, how much interest is charged on a 30 year $100,000 house loan at 6%?
Tuesday, April 26, 2016 by Anonymous

math
Using the simple interest formula, how much interest is charged on a 30 year $100,000 house loan at 6%?
Tuesday, April 26, 2016 by Anonymous

Math-probabilities
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. Cause Deaths Passenger car occupant 13,...
Tuesday, April 26, 2016 by Jeff

math
The mass of a box with 6 tennis balls is 2 kg 40 g. The same box with 10 tennis balls is 3 kg 160 g. What is the mass of the empty box?
Tuesday, April 26, 2016 by teresa

math
A cylindrical tank with diameter 20in. is half filled with water. How much will the water level rise if a metallic ball of radius 4 in. is placed in the tank?
Tuesday, April 26, 2016 by mary

math
I need help for math
Tuesday, April 26, 2016 by Anonymous

mental math
if 600 divided by 6=100 then 602 divided by 6 =n
Tuesday, April 26, 2016 by dream

Math
Help Please. A wireless phone company offers two plans. In one plan, there is a monthly fee of $40 and a charge of $0.25 per minute. In the other plan, there is monthly fee of $25 and a charge of $0.40 per minute. For what number of minutes are the costs equal?
Tuesday, April 26, 2016 by Fred

math
You are planning a vegetable garden and you lay out a rectangular design 10 feet wide by 20 feet long. After laying out the design you decide you want a larger garden and decide to increase the length of the garden by a length of 2x feet and increase the width by a length of ...
Tuesday, April 26, 2016 by MATH!

algebra
Please help!!! Ray and Kelsey have summer internships at an engineering firm. As part of their internship, they get to assist in the planning of a brand new roller coaster. For this assignment, you help Ray and Kelsey as they tackle the math behind some simple curves in the ...
Tuesday, April 26, 2016 by Legend

math
the 10th,4th and 1st term of an A.P are the three consecutive numbers of a G.P and the sum of the 1st 6 terms ;take 4 as the 1st term
Tuesday, April 26, 2016 by Abdul Ahad

math
A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per liter with a standard deviation of 2.3. (a) Assuming that the kilometers per liter given by all mid-sized cars have a normal distribution, find a 99% confidence interval for the...
Tuesday, April 26, 2016 by Kapaki Katea

Math
Solve: _/_*_+_*_*_/_+_*_=100 Using only numbers 1-9 in any order.
Tuesday, April 26, 2016 by Rich

Math
Find the minimum value of C = 4x - 3y using the following constraints. constraints to get the vertices. Plug the vertices into the objective function. Remember graph the
Tuesday, April 26, 2016 by pandagang

7th Grade Math
Sarah has $200 to spend. She buys a chair for x dollars and pays 6% sales tax. She has y dollars left. What equation models this situation? A. 200 - 0.06X = Y b. 200 - 1.06x = y C. 200 + 1.06X = Y D. 200 = 0.06X I chose answer A. Is that the correct answer? If not please show ...
Tuesday, April 26, 2016 by Misty

Algebra Help me Please
Someone please help me with this!!! Ray and Kelsey have summer internships at an engineering firm. As part of their internship, they get to assist in the planning of a brand new roller coaster. For this assignment, you help Ray and Kelsey as they tackle the math behind some ...
Tuesday, April 26, 2016 by Riley

Math
Kimmy's toy box is 3 feet tall, 6 feet long and the width is half of what it is tall. How many cubic feet of space are inside Kimmy's toy box?
Tuesday, April 26, 2016 by Anonymous

Math
A box can hold 175 cubic inches of cereal. Of the box is 7 inches long and 2.5 inches wide, how talk is it ?
Tuesday, April 26, 2016 by Kristen

math
1/2 x 1/2 x 5/6 =
Tuesday, April 26, 2016 by awesome

Math
an aircraft flew 2 hours with the wind. the return trip took 3 hours against the wind. if the speed of the plane in still air is 140 miles per hour more than the speed of the wind, find the wind speed and the speed of the plane in still air
Tuesday, April 26, 2016 by help

Math
The circular base of a cylinder has a diameter of its height is 5cm. Taking PI to be 22/7 find its volume
Tuesday, April 26, 2016 by Muhammad sani

math
A researcher tagged 40 giant turtles in 2008. In 2009, she returned and captured 50 turtles, 16 of which were tagged. In 2010, she returned again and captured 30 turtles, 8 of which were tagged. A. Use a proportion to estimate the turtle population for 2009 B. Use a proportion...
Tuesday, April 26, 2016 by FluttershyK22

Math
A bag containing M&M'S contains 23 red, 54 brown, 15 yellow, and 9 orange candies. What is the probability of getting a yellow or orange M&M'S? my answer: 24/101 probability
Tuesday, April 26, 2016 by PLEASE CHECK MY ANSWER ASAP!

math
What is the missing coordinate that would make the following shape a rectangle? (4,8),(12,8),(12,16)? Edit
Tuesday, April 26, 2016 by Anonymous

math
Maria has the following scores on exams in her social studies class 86, 75, 97, 58, 94, and 58 A. find the mean, median, and mode of the scores. B. Should Maria's social studies teacher use the mean, median, or mode of the exam scores to convince Maria that she needs to ...
Tuesday, April 26, 2016 by FluttershyK22

Math
A $30.00 pair of jeans is discounted 20%. If sales tax is 5%, what will be the final price of the jeans?
Tuesday, April 26, 2016 by Anonymous

math
What is the coefficient of x in (x^4 + x^3 + x^2 + x + 1)^4?
Tuesday, April 26, 2016 by Annonymous

math
Nick estimated that 5/8 + 4/7 is about 2.Explain how you know his estimate is not reasonable.
Tuesday, April 26, 2016 by Kitt

math
You are surveying students to find out their opinion of the quality of food served the school cafeteria. You decide to poll only those students who buy hot lunch on a particular day. Is your sample random? Explain? Can you explain me this im not sure if it is random or not and...
Tuesday, April 26, 2016 by FluttershyK22

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