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March 28, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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math
The annual interest rate for a customer’s loan of $425 is 15.75%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?
Friday, February 13, 2015 at 10:31pm

math calculus
what is the difference between the function 2^x and (1/2)^x?
Friday, February 13, 2015 at 8:49pm

math
The length of a rectangle is increased by 50%. By what percent would the width be increased to keep the same area? a.43/3 b.45/4 c.33-1/3 d.31-1/3
Friday, February 13, 2015 at 8:47pm

math
Cristy’s age 15 yrs ago equals the sum of 2/9 of her age 15 yrs hence and 1/6 of her age ago. How old is she now? a.27 b.28 c.29 d.30
Friday, February 13, 2015 at 8:45pm

math
If a man was x years old y years ago, how old is z years old from now? a.35 b.36 c.38 d.None
Friday, February 13, 2015 at 8:44pm

math
A gardener is making a triangular planting, with 35 plants in the front row, 31 in the second row, 27 in the third row and so on. If the pattern is consistent how many plant are there be in the last row?
Friday, February 13, 2015 at 8:43pm

math
The area of rectangle is 192 sq. meters its diagonal is 20 in. find its width and length?
Friday, February 13, 2015 at 8:42pm

math
Find the solution set 2x + [3x-(4x-5) ]=x/4-2 a.28/3 b.-28/3 c.9 d.-9
Friday, February 13, 2015 at 8:41pm

math
Simplify [1+y/(x+y)]/ [1-3y2/(x2-y2)] a.x/y-x b.y/x-y c.x-y/2-2x d.x-y/x-2y
Friday, February 13, 2015 at 8:40pm

math
I am a positive integer less that 30, two more than my value is a mulitple of 6 the sum of my digits is a mulitple of 7 find this number
Friday, February 13, 2015 at 8:34pm

Math Check
I need someone to please check this for me. Thanks! :) Question: Tonto Pagalies (brother to vaporized racer Teento), an observer at Bindy Bend, is 14285’ from Desert Plain. He knows that there is a right angle between the lines of sight from Bindy Bend to Desert Plain and...
Friday, February 13, 2015 at 8:33pm

math
Tony is on his way home in his car. He has driven 12 miles so far, which is three-fourths of the way home. What is the total length of his drive?
Friday, February 13, 2015 at 8:33pm

Math
I am not sure how to figure out the missing lengths of a pentomino? Here are the lengths. 4cm. 3cm. 12cm and the missing one is in the middle
Friday, February 13, 2015 at 8:20pm

math
how do I translate this sentence into an equation. 51 is the product of Malik's height and 3 . Use the variable m to represent Malik's height
Friday, February 13, 2015 at 6:29pm

math
10 ft/Min = ______ mi/h
Friday, February 13, 2015 at 6:04pm

math
The distance meters from a fixed point O, covered by a particle after t seconds given by the equation; S = t3 – 6t2 + 9t + 5. (a) Calculate the gradient to the curve at t = 0.5 seconds (b) Determine the values of sat the maximum and minimum turning points of the curve
Friday, February 13, 2015 at 3:27pm

math
what is 66 2/3 of 39?
Friday, February 13, 2015 at 1:47pm

math
sales tax rate of 5%, what is the total cost if paid 456.60/
Friday, February 13, 2015 at 1:45pm

Math 20-1
Determine whether each sequence is geometric, arithmetic, or neither. Justify your answer. (1/5), (1/4), (1/3), (1/2), 1...
Friday, February 13, 2015 at 1:40pm

Math
Find all solutions for the following complex number: z^4 /4=1
Friday, February 13, 2015 at 1:03pm

Math
What is 2.48 expressed as the quotient of two integers in simplest form?
Friday, February 13, 2015 at 10:20am

math
Peta attempted to solve the following equation. Explain Peta's error. x (x - 5) = 20 x = 20 and x - 5 = 20 x = 20 and x = 25
Friday, February 13, 2015 at 8:29am

math
One of the tallest living men has a height of 263 cm. One of the tallest living women is 245 cm tall. Heights of men have a mean of 177 cm and a standard deviation of 8 cm. Heights of women have a mean of 163 cm and a standard deviation of 4 cm. Relative to the population of ...
Friday, February 13, 2015 at 2:12am

Math
For what values of a and b is the line 3x+y=b tangent to the curve y=ax^3 when x=–3?
Thursday, February 12, 2015 at 10:52pm

math
Please check -37=3x+11-7x -48=11x X=2 2/7 -m/3-2=10 -m/3=6/-3 M=-2
Thursday, February 12, 2015 at 10:45pm

Math
Ms. Peters drove from her home to the park at an average speed of 30 miles per hour and returned home along the same route at an average speed of 40 miles per hour. If her driving time from home to the park was 20 minutes, how many minutes did it take Ms. peters to drive from ...
Thursday, February 12, 2015 at 10:45pm

math
Please check -27=8x-5x -27/3=3x X=-9
Thursday, February 12, 2015 at 10:37pm

math
Hey someone use 192 beads to make a necklace and bracelet it takes 5 times as many beads to make the necklace that the bracelet how much beads it take to make the necklace
Thursday, February 12, 2015 at 10:04pm

Math
Using the equation B=p(1+r)^n [B, Balance; p, principal deposit; r, rate; n, number of interest periods]. Find the balance when you have $17,500 in the bank at 4.25% compounded annually for 6 years. I know the answer but not how to do it.
Thursday, February 12, 2015 at 9:48pm

Math/Trig
From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are 6 degrees and 13 degrees respectively. The points and the tower are in the same vertical plane and the ...
Thursday, February 12, 2015 at 9:24pm

math
If Matt filled a 2 1/5 cup container, how many 1/5 cups would he need to use??
Thursday, February 12, 2015 at 9:16pm

math
The probability of getting a white marble from a bag is 1/5. If there are 37 white marbles in the bag, what is the total number of marbles in the bag
Thursday, February 12, 2015 at 9:03pm

Math
john and Julia are playing a game of darts. For each round, eqch of them throws exactly one dart and receives the number of points indicated in region of dartboard where the dart lands. Just after the first round , the dartboard looks like the diagram above. The players are ...
Thursday, February 12, 2015 at 9:01pm

Math
Each tub contains how many pickles? Write the equation.
Thursday, February 12, 2015 at 8:58pm

math
George wants to put carpeting in a rectangular living room and a square bedroom. The length and width of the lving room is 12 feet by 18 feet. One side of the square bedroom is 13 feet. It will cost $3.50 per square foot to carpet the rooms. A)Write an expression that can be ...
Thursday, February 12, 2015 at 8:07pm

math
Suppose in a town three-fourths of the men are married to one-half of the women. What is the ratio of men to women in this town?
Thursday, February 12, 2015 at 8:02pm

math
3cups to 8cups in simplest form
Thursday, February 12, 2015 at 7:54pm

math
what are the first four terms of the sequence represented by the expression n(n - 1) -4
Thursday, February 12, 2015 at 7:34pm

math
Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 4 bulbs. In the second year, it produced 8 bulbs, and in the third year, it produced 16 bulbs. If this pattern continues, how many ...
Thursday, February 12, 2015 at 7:29pm

Math
The displacement (in meters) of a particle moving in a straight line is given by the equation of motion s = 4/t^2, where t is measured in seconds. Find the velocity of the particle at times t = a, t = 1, t = 2, and t = 3.
Thursday, February 12, 2015 at 7:07pm

math
Jane gets 1/2 of a gold star each time she helps her teacher clean up the classroom after art class.How many times would Jane need to help her teacher to earn 3 while gold stars?
Thursday, February 12, 2015 at 6:47pm

Math
How much did Aaron start with? Aaron spent 3/7 of his money. He gave ¼ of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer. The way you solved this problem was wrong.Aaron did not start out with ...
Thursday, February 12, 2015 at 6:39pm

Math
Three eighths of the cast in a musical have to sing. What fraction of the cast does not have to sing?
Thursday, February 12, 2015 at 6:27pm

math
120.25 + 7/28
Thursday, February 12, 2015 at 6:14pm

Math
How much did Aaron start with? Aaron spent 3/7 of his money. He gave ¼ of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer.
Thursday, February 12, 2015 at 6:01pm

math
How much did Aaron start with? Aaron spent 3/7 of his money. He gave 3 of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer.
Thursday, February 12, 2015 at 5:52pm

math
3 over 4 in percent
Thursday, February 12, 2015 at 5:34pm

math
Write an equation in slope-intercept form for the line that satisfies each set of conditions, That Passes through (5, -2), parallel to the graph of x+2y=8
Thursday, February 12, 2015 at 5:30pm

Math
Suppose in the early 1900s the levels of CO2 in the atmosphere was only 64% of the levels of CO2 today. What percentage more is the level of CO2 today compared to the levels of CO2 in the early 1900s?
Thursday, February 12, 2015 at 5:30pm

math
How much did Aaron start with? Aaron spent 3/7 of his money. He gave 1/4 of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer.
Thursday, February 12, 2015 at 5:29pm

Math
How much did Aaron start with? Aaron spent 3/7 of his money. He gave ¼ of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer.
Thursday, February 12, 2015 at 4:58pm

math
wolfgang wants to enlarge a picture he developed.wich factor listed below would scale up(enlarge) his picture the most if he used it to multiply its current dimension. a) 7/8 b)14/14 c)1 and 4/9 d)3/2
Thursday, February 12, 2015 at 3:57pm

math
In order to estimate the height 'h' of a tall pine tree, a student places a mirror on the ground and stands where she can see the top of the tree. The student is 6 feet tall and stands 3 feet from the mirror which is 11 feet from the base of the tree. Another student ...
Thursday, February 12, 2015 at 2:34pm

Math
1.(y^-5)^-10y^10 A) y^-60 B) y^60 C) y^-150 D) y^150 Can anyone help please? I have tried solving it, but it's mind boggling.
Thursday, February 12, 2015 at 2:31pm

Math
One side of a triangle is half the longest side. The third side is 7 less than the longest side. The perimeter is 53 feet. Find the three sides
Thursday, February 12, 2015 at 2:21pm

Math(Asap)
1. A 3,500.00 principal earns 3% interest, compounded semi annually. After 20 years, what is the balance in the account A. 7,700.00 B. 4,713.99 C. 5,600.00 D. 6,349.06 Steve, I got the second one. It was 18,112.45. But I still cannot get the first one.
Thursday, February 12, 2015 at 2:16pm

Business Math
A $40,000 loan at 4% dated June 10 is due to be paid on October 11. The amount of interest is (assume ordinary interest):
Thursday, February 12, 2015 at 2:07pm

Math (Asap)
1. A 3,500.00 principal earns 3% interest, compounded semi annually. After 20 years, what is the balance in the account A. 7,700.00 B. 4,713.99 C. 5,600.00 D. 6,349.06 2. A boat costs 92,000.00 and depreciates in value by 15% per year. How much will the boat be worth after 10 ...
Thursday, February 12, 2015 at 2:06pm

Math-Probability
You have a friend who claims to be psychic. You don't believe this so you test your friend by flipping a coin 20 times and having him predict whether each flip is heads or tails. If you are right, and your friend is NOT psychic, the the probability of guessing correctly on...
Thursday, February 12, 2015 at 1:39pm

Math: Probability
Sally has a jar of 10 marbles, 3 red, 4 blue, and 3 green. If Sally reaches into her jar and selects two marbles at random, what is the probability that the first marble is red and the second is also red? What is the probability that the first is red and the second is blue?
Thursday, February 12, 2015 at 1:28pm

math
If r = 4 cm, h = 18 cm, and a = 7 cm, what is the volume of birdseed that the bird feeder can hold at full capacity?
Thursday, February 12, 2015 at 1:20pm

Math
Sondra is trying to figure out how much fence material to buy for her rectangular garden. The garden is 18 feet long, and its width is 1/3 of its length. How many yards of fencing should she buy?
Thursday, February 12, 2015 at 11:13am

math
Janice is making 12 wooden picture frames to give to her friends this year as holiday presents. Each frame has a length of 10 inches and a width of 8 inches. How many total inches of wood will Janice need for all 12 frames?
Thursday, February 12, 2015 at 8:59am

math
r the thrust of aiplane's engine produces a speed of 350 mph in still air . the plane is aimed in the direction of <6,-3,2> but its velocity with respect to the ground is <320,-140,125> mph .find the wind velocity .explain whether this is a tail wind or head ...
Thursday, February 12, 2015 at 7:19am

math
A farmer wants to fence a small rectangular yard next to a barn. Fence for side parallel to the barn will cost 75 per foot and the fence for the other two sides will cost 30 per foot. The farmer has a total of 1750 dollars to spend on the project. Find the dimensions for the ...
Thursday, February 12, 2015 at 2:41am

math
A farmer wants to fence a small rectangular yard next to a barn. Fence for side parallel to the barn will cost 75 per foot and the fence for the other two sides will cost 30 per foot. The farmer has a total of 1750 dollars to spend on the project. Find the dimensions for the ...
Thursday, February 12, 2015 at 1:45am

math
The University of Oregon girls club soccer team is raffling off a bicycle to raise money for new equipment. If they charge 2 dollars per ticket, they will sell 600 tickets. For each 50 cent increase in ticket price, they will sell 30 fewer tickets. What ticket price should ...
Thursday, February 12, 2015 at 12:50am

Math
A committee of 100 Democrats is formed with 22 members from the East, 38 members from the Midwest, and 40 members from the West. If a random sample of 3 members from this committee is selected, what is the probability to the nearest percent that all 3 are from the East?
Thursday, February 12, 2015 at 12:16am

math
7^-(1/5) / 7^-(7/5) * 7^3/5 can be simplified as 7^a/b where a and b are positive integers. find a*b-a answer: 7^-(1/5) / 7^-(7/5) * 7^3/5 7^5/7(5/7) * 7 ^3/5 <- plz explain this part? 7^(8/5-3/5)=7*5/5
Wednesday, February 11, 2015 at 11:52pm

math 3
an orange weight 198 grams. a kiwi weight 85 grams less than the orange. what is the total weight of the fruit? my answer is 283 grams is it correct?
Wednesday, February 11, 2015 at 11:37pm

math
Show how to write and evaluate an expression to represent and solve this problem: Jeff and his friend each text four classmates about a concert. Each classmate then texts four students from another school about the concert. If no one receives the message more than once, how ...
Wednesday, February 11, 2015 at 11:28pm

math
FOUR QUESTION PROBLEM: Amy and three friends launch a new website. Each of the four friends e-mails the web address to three new friends. These new friends forward the web address to three more friends. If no one receives the e-mails more than once, how many people will ...
Wednesday, February 11, 2015 at 11:26pm

math 3
Kami scored a total of 21 points during her basketball game. she made 6 two-point shots and the rest were three-points shots. how many three-point shots did Kami make?
Wednesday, February 11, 2015 at 11:26pm

math 3
Gwen pours 236 milliliters of water into Ravi's beaker. Henry pours 189 milliliters of water into Ravis beaker. Ravis beaker now contain 800 milliliters of water. How much water was in Ravis beaker to begin with? my answer is 375 is this correct?
Wednesday, February 11, 2015 at 11:16pm

math 3
maude hung 3 pictures on her wall. each picture measures 8 inches by 10 inches. what is the total area of the wall covered by the pictures?
Wednesday, February 11, 2015 at 10:51pm

math
For each of two rectangles, the length to width ratio is 3:2. The ratio of the length of the larger rectangle to the length of the smaller rectangle is 7:5. What is the ratio of the area of the two rectangles?
Wednesday, February 11, 2015 at 10:44pm

Math
Explain It In one night, George reads 3 chapters of a book with 27 chapters. After the second night, he has read a total of 8/27 of the book. Explain how you would determine the number of chapters George read the second night. Solve the problem.
Wednesday, February 11, 2015 at 10:43pm

math
For each of two rectangles, the length to width ratio is 3:2. The ratio of the length of the larger is 7:5. What is the ratio of the area of the two rectangles?
Wednesday, February 11, 2015 at 10:29pm

Math
A certain club consists of 5 men and 6 women. a) How many ways are there to form a committee of 3 people and b) How many ways are there to form a committee consisting of 3 men and 4 women.
Wednesday, February 11, 2015 at 10:12pm

Math (Interest)
If I was given an amount of money for 1 month, and I wanted to compound its interest monthly, which formula would I need to use? My interest rate is 2.5%. I want to compound monthly (so n=12). But I want to find the amount after compounding interest monthly FOR THAT single ...
Wednesday, February 11, 2015 at 10:02pm

Consumer Math
Marta borrowed $1,380 for 15 months at 13 percent APR. How much will she pay in interest?
Wednesday, February 11, 2015 at 9:30pm

math
The scale of a map is 5m= 15 mi maps 8.2 actual____
Wednesday, February 11, 2015 at 8:48pm

Math
What is a ratio
Wednesday, February 11, 2015 at 8:41pm

Math
It took Mr.Bingea 8 minutes to run 4/5 of a mile. How many minutes did it take him to run the entire mile?
Wednesday, February 11, 2015 at 8:33pm

Math
Five friends went to a baseball game. Three of friends each bought a ticket for x dollar and soda for $6.00. The other two friends each bought only tickets. Write and simplify an expression that represents the amount of money spent
Wednesday, February 11, 2015 at 8:32pm

MATH
how many times as great as 10^-5 is 100^2 ?
Wednesday, February 11, 2015 at 8:26pm

math
Marty ate 4/6 of his pizza and Luis ate 5/6 of his pizza. Marty ate more pizza than Luis. How is that possible?
Wednesday, February 11, 2015 at 8:15pm

math
Building a rectangular sandbox for younger brother. The length. Is 1 foot longer than twice the width of the sandbox. The perimeter of the sandbox is 29 feet what equation could be used to determine the w, the width, in feet, of the sandbox?
Wednesday, February 11, 2015 at 8:15pm

math
Which is faster a car completing a 500 race in about 3.33 hours or a car completing a 300 mile race in 2.5 hours
Wednesday, February 11, 2015 at 8:09pm

math
The demand function for a product is p=32−8q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. q= units R= $
Wednesday, February 11, 2015 at 7:53pm

Math
A countertop is 16 feet long and 3 feet wide
Wednesday, February 11, 2015 at 7:09pm

math
In a livestock research stations a new drug for a certain fowl disease is being tried. Samples of 36 fowls were diagnosed to have the disease. Twenty (20) fowls were treated with the drug and the rest were not. (a) Calculate the probability that a fowl picked at random is (i) ...
Wednesday, February 11, 2015 at 6:47pm

math
what is the graph of the function y = 2 x 2^x graphs below i think it is graph c
Wednesday, February 11, 2015 at 6:40pm

Math
Q. Sheila's skates weigh 4 lbs. 3 oz., Heidi's skates weigh 3 lbs. 7 oz., and Javier's skates weigh 3 lbs. 13 oz. what is the average weight of the four skate pairs of skates? - A. Do I just add them all??
Wednesday, February 11, 2015 at 6:24pm

Math
I have a project where I'm supposed to calculate the interest of a given amount monthly and continuously, and then compare the methods. We were given a chart with each's month's principal amount (and we're given 1 number for each month of 1 year), and I want to...
Wednesday, February 11, 2015 at 6:20pm

math
Find the reciprocale of 0.342. Hence evaluate: (ã0.0625)/0.342
Wednesday, February 11, 2015 at 6:16pm

math
If a fowl is treated, probability of dying is 1/10 while if not treated the probability is 7/10 calculate the probability that, a fowl picked at random from the 36 fowl is (i) Treated with the drug and will die (ii) Not treated with the drug and will die (iii) Not treated with...
Wednesday, February 11, 2015 at 6:11pm

6th grade math
When solving an inequality, why is it necessary to perform the same operation on each side of the inequality sign?
Wednesday, February 11, 2015 at 5:49pm

Math
Translate the sentence into an inequality. Six increased by the product of a number and 10 is at most −16 . Use the variable x for the unknown number.
Wednesday, February 11, 2015 at 5:47pm

math
if $13.69 is the price of a pair of sneakers after 75% was taken off, what was the original price of the sneakers?
Wednesday, February 11, 2015 at 5:23pm

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