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May 22, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
My son is having a math test tomorrow I am unable to tell properly. Thank u so much for u r help ~Be able to identify and draw the following: triangles, rectangles, squares, trapezoids, pentagons, hexagons, and cubes. ~Tell how many sides and angles the shapes have. ~Explain ...
Monday, February 10, 2014 at 5:23pm

Math 7
21. $1,000 plus 6% on sales of $2,000 22. $500 plus $10 on sales of $1,400
Monday, February 10, 2014 at 4:55pm

6grade math
When Marcia started walking a 6 mile section of a trail it took 3.3 hours. After 1 week her time was 3.1 hours and after 2 weeks it was 2.9 hours. If the pattern continues what will Marcia time be after 5 weeks? Help!
Monday, February 10, 2014 at 4:51pm

Math
A scale drawing has a scale of 1/4 in. :6ft. Find the length on the drawing for each actual length a.18ft b. 66ft c. 204ft
Monday, February 10, 2014 at 4:41pm

math 3
Mc kenzie works for a catering company. she is making iced tera for an upcoming event. for each container of tea, she uses 16 tea bags and 3 cups of sugar. If Mc kenzie uses 64 tea bags, how many cups of sugar will she use?
Monday, February 10, 2014 at 4:40pm

6grade math
When Marcia started walking a 6 mile section of the trail , it took her 3.3 hours. After 1 week, her time was 3 . 1 hours, and after two weeks, it was 2.9 hours. If the pattern continues what will Marcia time be after two weeks? Help!
Monday, February 10, 2014 at 4:39pm

math 2
ellen needs to buy 180 inches of ribbon to wrap a large present. the store sells ribbon only in whole yards. How many yards does ellen need to buy to have enough ribbon? Please answer thanks
Monday, February 10, 2014 at 4:38pm

Math
$1,000 plus 6% on sales of $2,000 $500 plus $10 on sales of $1,400
Monday, February 10, 2014 at 4:37pm

math
micheal is 17 years older than john.in 4 years the sum of their ages will be 49. find micheals present age
Monday, February 10, 2014 at 4:21pm

Math
Christy Bought an 8-foot peice of lumber to trim a bookself.altogether she needs 100inches of lumber for the trim.Did christy buy enough lumber explain
Monday, February 10, 2014 at 4:15pm

math
The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
Monday, February 10, 2014 at 4:08pm

Math
When Marcia started walking a 6 mile section of the trail, it took her 3.3 hours.After 1week her time was 3.1hours and after 2 weeks, it was 2.9 hours. If the pattern continues, what will Marcia's time be after 5 weeks?
Monday, February 10, 2014 at 4:06pm

Math-CHECK ANSWERS
hi please check these math answers! 13. If 4 out of 20 people like red jelly beans, what percent of the people do not like red jelly beans? A.5% B.20% C.80%(I PICK THIS) D.90% 14. Sally is photocopying a picture. The original picture was 4 inches wide and 6 inches long. The ...
Monday, February 10, 2014 at 3:37pm

Math
If I paid $1000 for a corporate bond and this year the bond paid $60 in interest and I am in the 25% income tax bracket! what is my after-tax return on this bond
Monday, February 10, 2014 at 3:21pm

math
(x + 5)^2
Monday, February 10, 2014 at 3:18pm

Math(CHECK ANSWERS)
PLEASE CHECK MY MATH ANSWERS PLEASE AND LABEL THEM LIKE 1.WRONG AND STUFF THANKS ! 1.There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons? A.6:22 B.6:16 C.22:6(I PICK THIS...
Monday, February 10, 2014 at 3:13pm

math(HELP)
PLEASE ANSWER THESE BEFORE I LOSE MY MIND !!! 19. What is the amount of sales tax owed on a $350 laptop computer if the tax rate is 6%? A.$2.10 B.$21.00 C.$35.00 D.$46.00 20. Find the amount of the discount on a $120 bicycle that is on sale for 25% off. A.$25.00 B.$30.00 C.$73...
Monday, February 10, 2014 at 2:46pm

Math, science, trinogonomentry
1, solve triangle ABC which have angleA= 250.251 angleB=600.511 and a=3.82 find c
Monday, February 10, 2014 at 1:15pm

Math, science, trinogonomentry
1, solve triangle ABC which have angleA= 250.251 angleB=600.511 and a=3.82 find c
Monday, February 10, 2014 at 1:11pm

math
Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the radius is 23 yd 22. Find the circumference of the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.
Monday, February 10, 2014 at 12:46pm

Math
Assume that it takes a college student an average of 5 minutes to find a parking spot in the main parking lot. Assume also that this time is normally distributed with a standard deviation of 2 minutes. What time is exceeded by approximately 75% of the college students when ...
Monday, February 10, 2014 at 11:27am

math
the coordinates for a triangular park has the vertices of (10.5), (15,5), (10,12). what is the area of the triangular park in square meters?
Monday, February 10, 2014 at 11:11am

Math easy please help
I just need help with rounding for making sure I round my answer correctly. Can you round this 1.299678785 to the nearest hundredth Thanks :)
Monday, February 10, 2014 at 11:03am

Math Urgent help please
A lamppost casts a shadow of a man who is standing 15 feet away from the lamppost. The shadow is 5 feet long. The angle of elevation from the tip of the shadow to the lamp is 50. To the nearest foot, the lamppost is _____ feet tall. (Points : 2)
Monday, February 10, 2014 at 10:50am

Math
Tory has two similar picture frames in her bathroom the ratio of the larger picture frame to the smaller picture is 5:2 if the perimeter of the smaller picture is 30 in what is the perimeter of the bigger picture frame
Monday, February 10, 2014 at 9:20am

math
20 tickets for 960 what is price of each ticket
Sunday, February 9, 2014 at 11:45pm

Math
A rocket engine, 2.39 cross 10−5watts/cm2
Sunday, February 9, 2014 at 10:54pm

Math
The combined math and verbal scores for students taking a national standardized examination for college admission, is normally distributed with a mean of 620 and a standard deviation of 220. If a college requires a student to be in the top 10 % of students taking this test, ...
Sunday, February 9, 2014 at 10:05pm

math
rewritten as a power of 2 with a rational exponent, the expression 4*squared root of 2 would equal which of the following. 1) 2 so 2 is just 2 2)2^2 which would =4 3) 2^5/2 this =5.65 4)2^5 this=32 4*square root of two=5.65 so I believe the answer is 3. Is that correct? Thanks...
Sunday, February 9, 2014 at 10:03pm

math
A bag of buttons contains 3 red, 4 orange, 7 green and 10 blue battens. How many orange buttons should be added so that makes up 1/4 of the total? (Remember, if you add more orange buttons, your total buttons will also increase.) Pla help due tomorrow
Sunday, February 9, 2014 at 9:58pm

math
Help please >.< The Hotel Lakewell has 450 rooms. Currently the hotel is filled . The daily rental is $ 750 per room. For every $ 4 increase in rent the demand for rooms decreases by 7 rooms. Let x = the number of $ 4 increases that can be made. - What should x be so as ...
Sunday, February 9, 2014 at 9:55pm

MATH HELP!!!!!!!!
| 3 2 7 | x1 | | 46 | | -2 1 4 | x2 | = | 12 | | 6 -5 8 | x3 | | 60 | (b). Solve the system using the inverse of the coefficient matrix. (x1, x2, x3) = (________)
Sunday, February 9, 2014 at 9:22pm

math
The profit in dollars in producing x- items of some commodity is given by the equation P = - 40 x^2 + 1000 x - 5250 . How many items should be produced to maximize the profit? What is the maximum profit?
Sunday, February 9, 2014 at 8:56pm

math
the seismic waves of a magnitude 6 earthquake are 10 squared times as great as a magnitude 4 earthquake. The seismic waves of a magnitude 4 earthquake are 10 times as great as a magnitude 3 earthquake. How many times as great are the seismic waves of a magnitude 6 earthquake ...
Sunday, February 9, 2014 at 8:49pm

math
lemon juice is 10 squared times as acidic as tomato juice . Tomato juice is 10 cubed times as acidic as egg white. How many times as acidic is lemon juice as egg whites? write as a monomial. how do I solve this
Sunday, February 9, 2014 at 8:45pm

Math Mixture Word Problem
How much water must be added to 1 liter of a 5% saline to get a 2% saline solution
Sunday, February 9, 2014 at 8:41pm

math
If an IV drop has 15 parts per 1,000 ml, how many parts would there be in 430 ml?
Sunday, February 9, 2014 at 8:30pm

math
Gina is adding a lace border to a circular pillow. The radius of the pillow is 8 inches, and she needs to decide how much lace to buy. Which length represents the least amount she can buy? 1) 26 inches 2) 51 inches 3) 101 inches 4) 202 inches p=2pir p=2pi8 p=16pi p=50.2 I ...
Sunday, February 9, 2014 at 8:15pm

math
Brett made a scale drawing of a rectangular room in his house. The actual length of the room is 12 4/5 ft. The scale used to make the drawing was 1/4 in.=1 ft. What is the length, in inches, of the room on the drawing?
Sunday, February 9, 2014 at 7:53pm

math
One weekend, there were 95 pizzas ordered for the sophomore dorm. That weekend 19 customers ordered their pizza with just pepperoni, 17 customers ordered their pizza with just sausage, 18 ordered theirs with just onions, 15 ordered theirs with pepperoni and sausage, 13 ordered...
Sunday, February 9, 2014 at 6:56pm

math
In a survey of 25 college students, it was found that 9 were taking an English class, 14 were taking a math class, and 8 were taking both English and math. How many students were taking a math class only
Sunday, February 9, 2014 at 6:48pm

Math
17x-5-12x
Sunday, February 9, 2014 at 6:42pm

math
Solve the set of linear equations by the matrix method:a+3b+2c=3,2a-b-3c=-8,5a+2b+c=9 sove for a
Sunday, February 9, 2014 at 5:50pm

Math
A bag of buttons contains 3 red, 4 orange, 7 green and 10 blue battens. How many orange buttons should be added so that makes up 1/4 of the total? (Remember, if you add more orange buttons, your total buttons will also increase.)
Sunday, February 9, 2014 at 5:38pm

Math
A bag of buttons contains 3 red, 4 orange, 7 green and 10 blue battens. How many orange buttons should be added so that makes up 1/4 of the total? (Remember, if you add more orange buttons, your total buttons will also increase.)
Sunday, February 9, 2014 at 5:15pm

math
Richard is flying a kite at an angle elevation of 52 degrees. he is 5 ft tall. If richard is standing 100 ft from the point on the ground directly below the kite, compute the length of the kite string.
Sunday, February 9, 2014 at 5:05pm

Math
Lou and Jan each ate 1/4 of an apple. Is there more than , less than , or exactly 1/2 of the apple left ? Explain. I don't know
Sunday, February 9, 2014 at 4:03pm

math
how to solve linear functions f(x)= 2x if x greater than or equal to -1 x-1 if x less than -1
Sunday, February 9, 2014 at 3:45pm

Pre Algebra
Hi, does anybody know what a quadrilateral in which opposite sides are congruent and parallel is? It's on a crossword puzzle on my math homework and is thirteen letters long and from the beginning the seventh letter is an E. Thanks so much to anyone who will help me out!
Sunday, February 9, 2014 at 1:45pm

math;)
a kitchen is shaped like a rectangle with dimensions of 11 1/2 ft. by 9 1/2 ft. the floor of the room is made of square tiles with a side length of 1.2 ft. What is the number of tiles that will cover the kitchen floor?
Sunday, February 9, 2014 at 12:47pm

MATH?!!?
a store sells ladders. . the retail price was a 40m percent markup over the manufacturer price. .a month later, the store reduced the retail price of the ladder by 25 percent What percent markup is the new retail price over the manufacturer price?
Sunday, February 9, 2014 at 12:44pm

math
differnce btween eight times a number twice the number is 18
Sunday, February 9, 2014 at 12:22pm

Math :-)
Explain why knowing the height is needed when finding the perimeter of a right triangle.
Sunday, February 9, 2014 at 12:10pm

Math Help
Please help me solve these two problems and check my answer :) 1. 3x-5+x+2 My answer- X= 17/3 2. 5/6x+1/4= -9/4 my answer- X= -2
Sunday, February 9, 2014 at 11:53am

math
$8000 is shared between 3 schools in the ratio of 2:3:5, how much will each school get?
Sunday, February 9, 2014 at 10:52am

math!!!!
One lap around the track is equal to 1/8 of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. What was the horse's average speed in miles per minute?
Sunday, February 9, 2014 at 10:41am

MATH
john mixed 3/4 liter of yellow paint with 1 1/4 liters of red paint to make 2 liters of orange paint. . He needed more orange paint. . To make a new batch of orange paint, he used exactly 1 liter of red paint. Using the same ratio, how many liters of yellow paint should john ...
Sunday, February 9, 2014 at 10:39am

math
The only way to get to Ship Island is to take the ferry which is free for babies (2 and under), $17 for children (3-10 years old), $25 for seniors (62 and older), and $27 for everyone else. Debbie paid $115 for 6 people in her family to go to the island for the day. Is it ...
Sunday, February 9, 2014 at 7:05am

math
A student has 4 English books,3 math books,and 5 history books.In how many ways can these books be arranged on a shelf if the books in same subjects must be kept together?
Sunday, February 9, 2014 at 4:54am

math
Lenny's height has increased by 1 (3/4) times his height at 3 years old. In percentage terms, how much has Kenny grown?
Saturday, February 8, 2014 at 10:58pm

math
kyle reduced his investment in collins company from $11, 700 to $4,300. what was the percentage rate of decrease?
Saturday, February 8, 2014 at 10:51pm

Math
Let f(x) be a polynomial such that f(cos theta) = cos(4 theta) for all theta. Find f(x). (This is essentially the same as finding cos(4 theta) in terms of cos theta; we structure the problem this way so that you can answer as a polynomial. Be sure to write your polynomial with...
Saturday, February 8, 2014 at 9:52pm

math
In Lewis Carroll's Through The looking Glass, Tweedledum says, "the sum of your weight and twice mine is 361 pounds". Tweedledee replies, "The sum of your weight and twice mine is 362 pounds". Find both weights. ONLY AN ALGEBRAIC SOLUTION WILL BE ...
Saturday, February 8, 2014 at 8:57pm

math
I need help with "write in equation in slope-intercept form for the line that is parallel to to the given line line and and that passes through the given point. y=1/2x=5;(4,-3) How do you find a line that is perpendicular. Please and thank you! :)
Saturday, February 8, 2014 at 7:30pm

Math Sums and Differences
Use the strategy of your choice to find the sums and differences below. a)(-4)+(10)+(4)+(-2) b)(5)+(-8)+(3)+(-7) c)(-19)+(14)+(21)+(-23) d)(5)-(-10)-(4) e)(-3)-(-3)-(-3) f)(+26)-(-32)-(+15)-(8) Continue each pattern, 3 times a) 5,2,-1,-4,-,-,- b) -11,-7,-3,1,-,-,-
Saturday, February 8, 2014 at 5:53pm

G.7 Math
Hey guys I need help with subtracting integers. A) (-8) - (6)= B) (-9) - (-6)= C) (-3) - (7) D) (-23) -(8) E)(90) - (-50) F)(-17) -(23) G)(40) - (-25) H) (-2)- (100) I)(33) - (-18)
Saturday, February 8, 2014 at 5:38pm

math
how do you integrate 3-e^1?
Saturday, February 8, 2014 at 5:32pm

Math
Practice adding and subtracting fractions. 1/ Jill's friends met at her house to go on a hike to the lake.they walked 1/4 of the way and then rested. How much further do they have to go to reach the lake? I don't know 2/ When they reached the lake , they took a swim....
Saturday, February 8, 2014 at 5:05pm

math
at midnight the temperature was 28 degrees colder than it was at noon. The temperature at midnight was 34 degrees What was the temperature at noon
Saturday, February 8, 2014 at 4:41pm

MATH
A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. Question1: By what percent is productivity increased by driving? Question2: If a new ZIP Code system improves driving productivity by 12.5%, what is the new number of homes ...
Saturday, February 8, 2014 at 2:02pm

math
Last month, Bill's electric bill was $80.77. This month, Bill's bill was $69.06. What is the percent decrease?
Saturday, February 8, 2014 at 1:55pm

Math
Find Curvature, find the curvature k of the curve, where s is the arc length parameter. r(s)=(3+s)i+j
Saturday, February 8, 2014 at 1:36pm

Math
A simple calculation will reveal that 72 has 12 factors including 1 and 72. How many natural numbers less than 100 have 12 such factors
Saturday, February 8, 2014 at 8:55am

math vector
Find the Principal unit normal vector to the curve at the specified value of the parameter. r(t)=ti+t^(2)j+lntk, t=1
Saturday, February 8, 2014 at 1:36am

Math - Alg
How much pure acid must be added to a 30% acid solution to make a 60L solution which is 50% acid? This was the answer I got from Reiny. amount of pure acid to be added -- x L 1(x) + .3(60-x) = .5(60) 10x + 3(60-x) = 5(60) 10x + 180 - 3x = 300 7x = 120 x = 120/7 or appr 17.14 L...
Saturday, February 8, 2014 at 1:06am

math
Select the first five terms in the arithmetic sequence an = 8n, starting with n = 1
Saturday, February 8, 2014 at 12:56am

Math
A simple calculation will reveal that 72 has 12 factors including 1 and 72. How many natural numbers less than 100 have 12 such factors
Friday, February 7, 2014 at 10:43pm

math
a train leave Chicago at a 115 miles per hour towards Denver another train leaves Denver 105 miles per hour towards Chicago if the distance between the two cities is 1200 miles how long would it take before the two trains meet?
Friday, February 7, 2014 at 9:47pm

Math
Peter notices that the teenage students who are members of the math club have ages whose product is 611520. How many members does the club have? Extensions: Is it true that whatever number replaces 611520 that this problem has a unique solution? Suppose the club included 12 ...
Friday, February 7, 2014 at 9:10pm

math
Peyton has 2 pizzas. Each pizza is cut into 10 equal slices. She and her friends eat 14 slices. What part of the pizzas did they eat? Write your answer as a decimal. My answer is 1.4
Friday, February 7, 2014 at 8:38pm

Math
Can you help me in math please, I dont understand this. My book shows me the area of a parallelogram, and area of a triangle, but it show me what to do if there's fractions in the problem. A. 12 1/2 ft2 B. 7 7/8 ft2 C. 8 1/4 ft2 D. 15 3/4 ft 2 Thank you.
Friday, February 7, 2014 at 7:41pm

Math
Find the largest positive integer that leaves the same remainder when divided into each of 889, 961, 1009, and 1189
Friday, February 7, 2014 at 7:20pm

Math
Show that the equation 155x -465y 35 has no integer solutions
Friday, February 7, 2014 at 6:46pm

Math
A simple calculation will reveal that 72 has 12 factors including 1 and 72. How many natural numbers less than 100 have 12 such factors
Friday, February 7, 2014 at 6:45pm

math linear equation
Solve the linear equations by the matrix method:a+3b+2c=3,2a-b-3c=-8,5a+2b+c=9.so​lve for a:b:c
Friday, February 7, 2014 at 5:54pm

Math
How to find the solution to (y-1)^2 = 9?
Friday, February 7, 2014 at 5:37pm

Math
How do you find the solution set for x^2 + 6x + 9 = 0?
Friday, February 7, 2014 at 5:16pm

Math
(2x - 5)/(x^2) = -4 How do you graph this type of equation?
Friday, February 7, 2014 at 5:12pm

math
0.06 2/3 into a fraction
Friday, February 7, 2014 at 4:44pm

Math
Find the largest positive integer that leaves the same remainder when divided into each of 889, 961, 1009, and 1189
Friday, February 7, 2014 at 4:19pm

Math
In how many ways is it possible to spend exactly $200 on pumpkins if large pumpkins cost $5 and small $3
Friday, February 7, 2014 at 4:19pm

math
Ex. 120 m of fencing is to be used to form three sides of a rectangular enclosure , the fourth side being an existing wall . Find the maximum possible area of the enclosure
Friday, February 7, 2014 at 3:30pm

math
Mr. Brown has a piece of hose 11 ft long. He is going to cut it into 15 equal-length pieces.
Friday, February 7, 2014 at 2:56pm

Math - Discrete math
1). Let G be the statement: " for all real numbers a and b, if a -|_a_| < 1/2 and b - |_b_| < 1/2 then |_a + b_| = |_a_| + |_b_|" (the symbol is for the FLOOR of a and b) A. is G true? prove it b. state wether the CONVERSE, CONTRAPOSITIVE AND NEGATION ARE TRUE ...
Friday, February 7, 2014 at 12:05pm

Math - Discrete math
(1) For all integers y, there is an integer x so that x^3 + x = y. (2)For all integers x, x^3 + x is even Thank you for your help.
Friday, February 7, 2014 at 11:44am

math
1421/7=
Friday, February 7, 2014 at 10:16am

Math
What equation cannot be solved and why?
Friday, February 7, 2014 at 8:56am

math
the fourth term of an arithmetic progression is equal to 3 times the first term and the seventh term exceeds twice the third term by 1 find the first term and the common differrence
Friday, February 7, 2014 at 8:31am

math
rewrite these numbers (2,1,3)from biggest to smallest and draw the counters.what is the solution to that?
Friday, February 7, 2014 at 8:28am

math
IF CIRCLE IS NOT A POLYGON . SO ,HOW CAN WE SAY THAT IT HAS A STRAIGHT SIDES ?
Friday, February 7, 2014 at 8:19am

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