Tuesday
April 28, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math
Im doing a crossword and it says flip figure (mirror image) what is this?
Thursday, March 26, 2015 at 4:25pm

math
There are 20 bikes in spinning class, the bikes are arranged 4 rows, with 5 bikes in each row. They hope to be in the same row, but cannot request specific bike. Determine the probability that all 5 friends will be in same row with Jeff and dariya at either end.
Thursday, March 26, 2015 at 4:05pm

math
This year, Rosa harvested 60 cucumbers, 25 tomatoes, and 15 peppers from her garden. In a circle graph of this data, what angle measure (in degrees) should Rosa use for the peppers section?
Thursday, March 26, 2015 at 3:57pm

^math^
^Pls help^ Question= Evaluate sqrt(19 - 4sqrt21) ...,where sqrt is square root.
Thursday, March 26, 2015 at 3:32pm

math
Find the missing angle measurement
Thursday, March 26, 2015 at 3:07pm

math
What is the least common denominator for the fractions and ? A. 14 B. 18 C. 24 D. 48
Thursday, March 26, 2015 at 2:18pm

Math
Wong ran for 45 minutes in a marathon without stopping.How many seconds Wong run without stopping?
Thursday, March 26, 2015 at 2:06pm

MATH
Sam invested part of his 36,000 bonus in a fund that paid an 8% profit and invested the rest in stock that suffered a 5% loss find the amount of each investment if his overall net profit was 2,750
Thursday, March 26, 2015 at 1:44pm

Math
The sum of any two consecutive integers is a composite number. A. 16 + 17 = 33 B. 10 + 11 = 21 C. 6 + 7 = 13 D. 7 + 8 = 15
Thursday, March 26, 2015 at 1:36pm

math
Why wasn't cross multiplication used. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks 5/3.5= x/1.16
Thursday, March 26, 2015 at 1:17pm

math
what is the volume of a cylinder with a radius of inches and a height of 6 inches ?
Thursday, March 26, 2015 at 1:16pm

Math
A box of Cereal X contains 36 ounces and costs $ 4.99. A box of Cereal Z contains 30 ounces and costs $ 4.50. Which cereal is the better buy ?
Thursday, March 26, 2015 at 1:04pm

math
Is there some other way I can explain this to my 8th grader. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks
Thursday, March 26, 2015 at 1:03pm

math
What is the missing exponent? (106) = 10 -18
Thursday, March 26, 2015 at 1:02pm

math
A rectangle has an area of 400 cm^2. If the rectangle is a square, what is its perimeter?
Thursday, March 26, 2015 at 12:52pm

Math
A 40-foot by 10-foot rectangular garden is enclosed by a fence. To make the garden larger, while using the same amount of fencing, its shape is changed to a square. How many square feet larger than the old garden is the new garden?
Thursday, March 26, 2015 at 12:41pm

Math
An experiment consists of rolling two fair number cubes. What is the probability that the sum of the two numbers will be 4?
Thursday, March 26, 2015 at 12:39pm

math
The area of a triangle is 600 square feet. Find the altitude, in feet, of the triangle if the length of the corresponding base is 30 feet.
Thursday, March 26, 2015 at 12:22pm

math
An equilateral triangle and a square both have perimeters of 48 inches. What is the ratio of the length of the side of the triangle to the length of the side of the square? Express your answer as a common fraction.
Thursday, March 26, 2015 at 12:02pm

Math
how do i solve: 200 = 1.862t^2 - 50t - 2
Thursday, March 26, 2015 at 11:28am

math
A brick making company manufactures bricks with the same height and width. the volume of each brick is 108 cubic inches and the base area of each brick is 36 square inches. If the length of a brick is denoted as x and the height and width of the brick is denoted by y, find the...
Thursday, March 26, 2015 at 11:28am

Math
Hi! I need help with these two questions. Thanks! :) 1.) Can we multiply the Matrix A (which is 3 x 4 matrix) by the other matrix, Matrix B (which is 3 x 4 matrix)? True Or False? 2.) When we multiply the 6 x 3 matrix by the 3 x 1 matrix, the final matrix would be in what ...
Thursday, March 26, 2015 at 11:01am

Math
Suppose you have a cache of radium, which has a half-life of approximately 1590 years. How long would you have to wait for 1/5 of it to disappear?
Thursday, March 26, 2015 at 10:30am

math
n/4=17/3
Thursday, March 26, 2015 at 10:25am

Math question
Of 100 students surveyed, 33 like orange soda, 55 like cola, and 14 like both. How many students do NOT like orange soda? My answer=67. Am I correct?
Thursday, March 26, 2015 at 10:13am

math
At a local high school,560 out of 1060 students voted to support a community fund drive. What percent of the students did not support the fund drive?
Thursday, March 26, 2015 at 9:21am

Math
Find the co-ordinates where f(x)intersects f'(x). f(x)= ln(x+3) f'(x)= -3+e^x I rewrote f(x) so that it looks like: e^y=x+3 then I inserted f'(x): y=-3+e^x into f(x) and after a bit of working I got x=-10.6 which is not possible because ln of something negative is ...
Thursday, March 26, 2015 at 8:36am

Math
Samantha has 2 meters of ribbon for wrapping packages She uses 15 centimeters of ribbon on first package how much ribbon is left
Thursday, March 26, 2015 at 12:26am

Math if my answer is correct
The function h(t) = 2 + 50t - 1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) How long will the ball be above the surface of Mercury? I get t= 22.02 and 4....
Wednesday, March 25, 2015 at 11:24pm

Math
Phil bought a block of cheese in the shape of a rectangular prism measuring 8 inches by 4 inches by 2 inches. He cut four pieces of cheese off the block each measuring 2 inches by 3 inches by inch . how much of the block of cheese is left . IS the answer 40in3
Wednesday, March 25, 2015 at 11:01pm

7th grade math
Can you check these? 1. Jonelle is running on a track that is 2/3 of a mile long. So far she has run 4/5 of the way around the whole trace. How far has she run so far? Ans: (2/3)(4/5) =8/15 mile 2. A recipe for muffins needs 3/4 of a cup of milk. You are making 1/2 of the ...
Wednesday, March 25, 2015 at 9:53pm

math
sam cut a pie into equal slices. there are only 3 slices left. the angle measure for the three slices is 72 degrees. how many slices did sam cut the pie into?
Wednesday, March 25, 2015 at 9:48pm

math.
Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) = -5x^2 + 21x. The cost functiom C(x) = 2x + 10 is the cost of producing the shorts. A) How many pairs of shorts must the company sell in order to break even. Do i use the ...
Wednesday, March 25, 2015 at 9:44pm

math
Alyssa IS 4 TIMES OLDER THEN JIFFIS 2 TIMES OLDER THAN SARAH AND SARAH IS 8 PLZ HELP
Wednesday, March 25, 2015 at 9:27pm

Math
How do you find the area if a composite shape?
Wednesday, March 25, 2015 at 9:20pm

math is my answer correct
Is my answer correct?? The function h(t) = 2 + 50t - 1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball? I got ...
Wednesday, March 25, 2015 at 9:15pm

math
there are half as many 11th grade students in the band the are 9th grade students. how many 11th grade students are in the band
Wednesday, March 25, 2015 at 9:13pm

math
A diver on a platform 40 feet in height jumps upward with an initial velocity of 5ft/s. His height in h feet after t seconds is given by the function h=-16t^2+5t+50. a. What is his maximum height? I got 50.39 b. How long will it take him to reach the surface of the water? h=-...
Wednesday, March 25, 2015 at 9:11pm

math
A number cube with the numbers 1 through 6 is rolled. find the given probability P(number < 2) (1 point) 1/6 2/6 *** 4/6 3/6 2. P(number ≥ 3) (1 point) 4/6 1/6 2/6 5/6 I think it's A .. I'm not quiet sure. please help 3. P(complement of 4) (1 point) 1/6 5/6 2/...
Wednesday, March 25, 2015 at 9:02pm

Math
Write an expression for the following: The quotient if a number and 20
Wednesday, March 25, 2015 at 9:02pm

math
Landyn wants to mix concentrate and water together to make her juice. The juice is 15% concentrate and 85% water. Her pitcher can hold 12 cups of juice. How many cups of concentrate does she need?
Wednesday, March 25, 2015 at 8:56pm

Math
Write a Mathematical expression equivalent to 3 (9+12)
Wednesday, March 25, 2015 at 8:56pm

Math
Last year 5300 people attended a football game. This year the figure is expected to increase by 17%. About how many people are expected to attend the game this year?
Wednesday, March 25, 2015 at 8:37pm

math
while training for a marathon Anderson is supposed to run a total of 10 miles total during the week. he ran the following number of miles from Monday to Saturday: 4 1/2, 1 2/3, 4/6, 3 1/12, 1/6 how far did Anderson run during the week?
Wednesday, March 25, 2015 at 8:03pm

Math
what are 2 parallelograms that each have an area of 24 units and a height of 4 units besides 6 unitstimes 4 units
Wednesday, March 25, 2015 at 7:48pm

math
Keo's model airplane uses 0.03L of fuel each minute it flies. If the fuel tank holds 0.5L,how long can the plane fly without refueling?
Wednesday, March 25, 2015 at 7:47pm

Math
How do you explaint to a 2nd grader how to find 2/3 minus 1/4?
Wednesday, March 25, 2015 at 7:33pm

math
A $300 mountain bike is discounted by 30% and then discounted an additional 10% for shoppers who arrive before 5am. If you go to the store at 4:30 am, how much will you pay? I did 300^30 =90. 300 -90 ==210 ^ 10 =2.10. 210-2.10= 207.90. Is this correct?
Wednesday, March 25, 2015 at 7:11pm

math
If x unit of a product cost C dollars to manufacture and earn revenue of R dollars, the value of X where the expression for C and R are equal is called break-even quantity, the number of units that produce zero profit. Find the break-even quantity when c=14X+48000 and R=18X
Wednesday, March 25, 2015 at 7:02pm

Math
Kami has an average of 64% in her class. School ends soon and she would like to raise her grade to a 74%.She has 2 tests left and tests counts as 80% of her grade, what would she have to get on the next to test to get her average up to a 74%?
Wednesday, March 25, 2015 at 7:00pm

math
A baseball team has home games on Friday and Sunday. the two games together earn $3391.00 for the team. Fridays game generates $401.00 less than Sundays game. How much money was taken in each game?
Wednesday, March 25, 2015 at 6:57pm

math
suppose that x liters of 36% acid solution are mixed with y liters of a 50% solution to obtain 100 L of a 37% solution. One equation is a system for solving this problem is x+y=100. which of the following is the other solution?
Wednesday, March 25, 2015 at 6:49pm

Math
One half of the birds at the pet store was yellow. Tara buys one of the yellow birds. The one third of the birds at the store are yellow. How many yellow birds were at the store before Tara brought one ?
Wednesday, March 25, 2015 at 6:38pm

math
The equation below shows how Mandy decides how much juice to buy for a party. In the equation, g is the number of gallons of juice she buys, and t is the length of the party in hours. g= 3t + 5
Wednesday, March 25, 2015 at 6:21pm

math urgent
let V=R^3 and S={u1,u2,u3}=[1;2;0],[1;0;0],[1;0;1] These are three vectors 1 by 3 use gschmidt to obtain an orthogonal basis and then find the coordinates of x=[1;2;3] relative to this basis.
Wednesday, March 25, 2015 at 6:00pm

math
One night Ms. Factor baked chocolate chip cookies. She used a 20-ounce package of cookie dough to make 3 dozen cookies. What was the average weight of each cookie.
Wednesday, March 25, 2015 at 5:37pm

Math
Use the initial condition y(0)=4 and step size h=.25, calculate the backward Euler on [0,1] for the ODE y'=10y-10y^2. Solve the ODE exactly and compute the errors at t=1.
Wednesday, March 25, 2015 at 5:36pm

math
Ty needs to cut strips of wrapping paper that are each 9 inches wide.If Ty has 2 rolls of wrapping paper that are 15 feet long, how many 9-inch strips can he cut ?
Wednesday, March 25, 2015 at 5:22pm

math
Use compatible numbers to estimate the quotient. 256.1 divide by 82. My answer is 240 divide by 40 = 3.
Wednesday, March 25, 2015 at 5:17pm

Math/Science
How do you convert millimeters to micrometers? For 10 mm, I got .010 micrometers, but I'm not sure if that's right.
Wednesday, March 25, 2015 at 5:08pm

Help with Math!--MS. SUE!
Hello I need some help with these questions. A survey of 115 children found that 39 liked The Little Mermaid 43 liked 101 Dalmatians 56 liked Mickey Mouse 7 liked The Little Mermaid and 101 Dalmatians 10 liked The Little Mermaid and Mickey Mouse 16 liked 101 Dalmatians and ...
Wednesday, March 25, 2015 at 4:53pm

Math
ceftriaxone (rocephin) is a dry powder antibiotic that must be reconstituted for use. the label states that to create a 100 mg/ml solution, 4.8 ml must be added to a 500mg vial. what is the powder volume. I am not sure what formula to use for this problem. How do I go about ...
Wednesday, March 25, 2015 at 4:03pm

math
A survey about the student government program at a school finds the following results. 190 students like the program 135 students think the program is unnecessary 220 students plan on running for student government next year. If a circle graph were made from the data, what is ...
Wednesday, March 25, 2015 at 3:55pm

Math
which is likely to have a mass close to 3 kilograms? a. a 5- year old child b. a bowling ball c. a lemon d. an adult lion
Wednesday, March 25, 2015 at 3:44pm

math!! HELP PLEASE
please help!!! 19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with ...
Wednesday, March 25, 2015 at 3:30pm

math
19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use ...
Wednesday, March 25, 2015 at 3:03pm

math
A survey about the student government program at a school finds the following results. 190 students like the program 135 students think the program is unnecessary 220 students plan on running for student government next year. If a circle graph were made from the data, what is ...
Wednesday, March 25, 2015 at 2:27pm

Math
How many more of corols stamps are from Norway then from France? * France= 24% England= 22% Italy= 25% Norway= 29%* A. 5 stamps*** B. 24 stamps C. 29 stamps D. 53 stamps please check
Wednesday, March 25, 2015 at 2:25pm

math - question stuck!
Q. A farmers in Alberta often deliver wheat to grain elevators using grain truck, which are a type of dump truck. A farmer make two trips to a grain elevator. The grain elevator manager measures the combined mass of the farmer's truck and wheat in tonnes (t), and then ...
Wednesday, March 25, 2015 at 2:02pm

math proportions
Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks?
Wednesday, March 25, 2015 at 1:31pm

Math
Colin is buying dirt to fill a garden bed that is a 9 ft by 16 ft rectangle. If he wants to fill it to a depth of 4 in., how many cubic yards of dirt does he need? If dirt costs $25 per yd3, how much will the project cost? (Hint: 1 yd3 = 27 ft3)
Wednesday, March 25, 2015 at 1:15pm

math
the expression gives the area of a rectangle (x-4)(2x-3) what is the value of the equation when x=7 ?
Wednesday, March 25, 2015 at 1:12pm

MATH
Debs discount store is giving a 30% discount on everything in the store. what would you pay for the jacket regularly priced at $59?
Wednesday, March 25, 2015 at 1:11pm

Math
Trevor went to an amusement park where ride tickets cost $2.50 each. He plans to spend $15.00 on refreshments while at the park. He has a total of $65.00. Write an equation to find the number of ride tickets he can buy.
Wednesday, March 25, 2015 at 1:08pm

MATH
You earn $10.00/hour and work 40 hours/week. You invest $4,000.00 at an interest rate of 5% APR for a year. How much interest did that savings earn in a year in terms of hours of work? 100 hours 20 hours 40 hours 400 hours Explain?
Wednesday, March 25, 2015 at 11:34am

math
Could you please give me an example of gathering a set of data and choosing a small sample, between 10 and 20 pieces of data, and a simple value to measure, such as the ages of visitors in a park?
Wednesday, March 25, 2015 at 11:29am

math
Find the 6th term of the arithmetic sequence given an = (1/5)an-1, given a1 = 20
Wednesday, March 25, 2015 at 11:06am

math
Gather a set of data. Choose a small sample, between 10 and 20 pieces of data, and a simple value to measure, such as the ages of visitors in a park, or the number of text messages each person in your family receives in one day. Choose a display for your data, such as a ...
Wednesday, March 25, 2015 at 10:54am

Math
Rosa poured 1 3/4 quarts of grape juice into a container. She added 3 1/3 quarts of apple juice. She then poured 2 2/3 quarts of the mixed juice into a pitcher. How many quarts of mixed juice were left in the container? Is the answer 1/3?
Wednesday, March 25, 2015 at 10:10am

Algebra (Math)
Without graphing, name the ordered pair where the graphs of the two linear equations intersect. (Below is the system.) { x = 2 y = -3 Without graphing, name the ordered pair where the graphs of the two linear equationd intersect. (Below is the system.) { y = 2 x + 2y = 10 For ...
Wednesday, March 25, 2015 at 9:50am

Math
A custodian pours1/8 gallon of cleaning solution into each pail of water that she uses. how many pails of water and cleaning solution can the custodian make using 16 gallons of cleaning solution?
Wednesday, March 25, 2015 at 9:45am

Math Check
Hi! I posted this question yesterday and it was answered but I forgot to add something else to the directions. Directions: Write the system of equations sequentially so that it will correspond to the final matrix. Matrix: [-10 2 | 48] [-5 -6/4 |-9] My answer: 10x+2y=48 -5x+-6/...
Wednesday, March 25, 2015 at 8:22am

math,Computer
Let A and B be two data lists. Concatenation of the list A and another list B is defined to be equal to B, if A is null; and is defined to be equal to concatenation of head of A with the concatenation of tail of A and B, otherwise (where head of A is the first element of A, ...
Wednesday, March 25, 2015 at 7:23am

math
In a statistic class, the average score of midterm is 75 and the SD is 8. The average score of final is 65 and the SD is 12. The scatter diagram of the two variables (midterm/final scores) is football shaped. The correlation between the two variables is 0.65. The regression ...
Wednesday, March 25, 2015 at 2:50am

math
A mountain climber on Mt. Everest is at 29,035 ft above sea level. A stone at the bottom of the dead sea is at 1,349 ft below sea level. What is the difference in elevation between the mountain climber and the stone? please can someone help me?
Wednesday, March 25, 2015 at 12:25am

math
One day at 3:00 am the temp was -13 degrees f in Kodiak Alaska. At 10:00 am the temp was 22 degrees f. What was the average change in temp per hour?
Wednesday, March 25, 2015 at 12:14am

Math payment calculation
What isrequired monthly payment for 30-years $100,000 mortgage at 12% APR. What formula?
Wednesday, March 25, 2015 at 12:13am

math
an elevator on the tenth floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on? anyone who can help me?
Wednesday, March 25, 2015 at 12:00am

math
The temperature in your town is 31 degrees fahrenheit. The radio announcer says that the temperature will drop 15 degrees. what will the temperature be? I have been trying to figure this out can someone help me with this?
Tuesday, March 24, 2015 at 11:34pm

math
Alice is 5 feet and has shadow of 4 feet long. how tall is the tree?
Tuesday, March 24, 2015 at 11:22pm

math
1.Find the quotient. -18 ÷ (-2) a) 1/9 b) 9 c) - 1/9 d) -9 idk plzz help me. 2. Find the sum. -11 + 3 + (-6) a) -20 b) -14** c) -8 d) 14
Tuesday, March 24, 2015 at 10:55pm

Math-I don't quite get it.
Rodney has a board that is 5/6 yard long. He uses 1/5 of the board to make a frame. How long is the board used to make the frame?
Tuesday, March 24, 2015 at 10:44pm

math
A rope is 15 feet long. Cut it into 3 pieces. The first piece was 3.57 feet longer than the second piece. The third piece was 2.97 feet longer than the second piece. How long was the third piece of rope?
Tuesday, March 24, 2015 at 10:33pm

math
1.Which of the following is a true statement? a) -7 > 5 b) -7 < 5 c) -7 < 7** d) 0 > -5 2. Solve the equation. b/-4=-2 a) 8 b) -8 c) 1/2** d) - 1/2
Tuesday, March 24, 2015 at 10:26pm

math
How to make pyramid pattern of 140 blocks?
Tuesday, March 24, 2015 at 9:48pm

math
let x and y be two complementry angles. form an equation and draw its graph. find graphically measures of the other angle. if one of the angle is
Tuesday, March 24, 2015 at 9:40pm

Math
r * 2/3=30 How do you solve this?
Tuesday, March 24, 2015 at 8:56pm

MATH
WHAT TWO NUMBERS CAN YOU ADD UP TO GET 984,357
Tuesday, March 24, 2015 at 8:50pm

Math
Trey can drive his car 130 miles on 4 gallons of gas. At this rate, if gas cost $ 3.45 per gallon how much will it cost to drive 260 miles?
Tuesday, March 24, 2015 at 8:37pm

math
ted takes out a student loan to pay for his college tuition this year. Find the interest on the loan if he borrowed $2,500 at an annual interest rate of 6% for 15 years. Could someone help step by step, I cant seem to get it. Thank you
Tuesday, March 24, 2015 at 8:11pm

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