# Homework Help: Math

## Branches of Math

## Recent Math Questions

**math**

four times a number minus 8 is equal to two times the number plus 12

*Sunday, February 12, 2017 by Anonymous*

**math**

Zach's rope is 15 feet long. He cuts it into three pieces. 1st piece is 3.57 ft longer than the 2nd piece. 3rd piece is 2.97 feet longer than the 2nd piece. How long is third piece?

*Sunday, February 12, 2017 by teresa*

**Math**

Prove 3(x+1)(x+7)-(2x+5)² is never positive So, 3(x+1)(x+7)-(2x+5)(2x+5) =3(x²+8x+7)-(4x²+20x+25) =3x²+24x+21-4x²-20x-25 =-x²+4x-4

*Sunday, February 12, 2017 by Anonymous*

**math algebra**

Sum the following term of progression to the last term, logx, logx^2 logx^3.... logx^120

*Sunday, February 12, 2017 by Joseph*

**math**

8 kilometer is how many meters

*Sunday, February 12, 2017 by Anonymous*

**college math**

a rectangular dog pen is to be constructed so that one side is against an existing stone wall and the other three sides are to be fenced. of 500 feet of fence is to be used, determine the dimensions and area of the pen with maximum area. I have no idea how to solve this problem.

*Sunday, February 12, 2017 by Jennifer*

**math**

(19) Does the following system of equations have a solution? If it does, find one; if not, explain why not. √ x + √ y = 1 r 4x 9 − r 25y 64 = 1

*Sunday, February 12, 2017 by sukh*

**math**

Alex invested money in two accounts, and after one year, one of them had earned 13% interest and the other 9%. He had $700 more invested in the lower interest account and earned a total of 239 in interest after one year. How much did Alex invest in each account? answer is 800 ...

*Sunday, February 12, 2017 by sukh*

**math**

Ann has $300 in a savings account that earns 1.75% simple annual interest. in how many years will she have$21 in Interest?

*Sunday, February 12, 2017 by Anonymous*

**math**

find the maximum and/or minimum values of the function f(x) for the indicated value of x f(x)=x^2 -4x+3 2<_ x _>5

*Sunday, February 12, 2017 by Michelle*

**Math**

The sum of two numbers is 9.twice their product gives 40.find the numbers. One number exceeds another by 4.the sum of their square is 208. What are the numbers. The area of a rectangular field is 108square .the perimeter is 42. Find the length.

*Sunday, February 12, 2017 by Taylor*

**math**

every diameter of a chord is a chord. A TRUE B FALSE

*Sunday, February 12, 2017 by kakashi hatake*

**Math**

96 calories in 3/4 cup serving how many calories are in 2 cups of the cereal?

*Sunday, February 12, 2017 by Dianni*

**Math**

If you decrease 300 by 5%, what is the result? A. 15 B. 150 C. 285 D. 315

*Sunday, February 12, 2017 by Neil*

**math**

which of the following best describes triangle ABC based on its sides? A) scalene B) right C) isosceles D) equalateral

*Sunday, February 12, 2017 by kakashi hatake*

**math**

Using a ruler and a pair of compasses only, construct triangle ABC in which angle BAC is 45 degrees, side AB is 7cm and side AC is 9cm. Locate P, inside the triangle ABC, which is 5cm from A and equidistant from B and C

*Sunday, February 12, 2017 by Valentine*

**Math**

There are eight slices of pizza 37 1/2% have a olives how many slices have olives

*Sunday, February 12, 2017 by Leen*

**math**

(78+99)+(100-98) there are no choices please help me with this

*Sunday, February 12, 2017 by kakashi hatake please help me!!!*

**Math**

A supermarket sells apples in bags of 8, how many apples are there in 32 bags?

*Sunday, February 12, 2017 by Lol*

**math**

a grocer bought 25 dozens of eggs for Rs 525. out of these, 18 eggs were found to be rotten. he sold the remaining eggs at the rate of Rs 26 per dozen. find his gain or loss percent.

*Sunday, February 12, 2017 by mayank*

**math**

Find area of triangle. Sides=12cm,9.2cm and 7.2cm

*Sunday, February 12, 2017 by sayan*

**math**

find the principle that will yield a compound interest of rs-1632 in 2 years at 4% rate of interest per annum

*Sunday, February 12, 2017 by hdh*

**math**

(13) Dan invested a total of 12, 000. He invested some of that money at 3% and some at 5%. After one year, he earned a total of 460 in interest. How much did Dan invest at each rate of interest?

*Sunday, February 12, 2017 by sukh*

**math**

(16) Tom took a 1900-mile trip by bus and plane. The bus averaged 60 miles per hour and the plane averaged 700 miles per hour. If the trip took 5 hours, how many miles did Tom travel by bus? [150 miles]math

*Sunday, February 12, 2017 by sukh*

**grade7 math**

36unit squares are joined to form a rectangle with lest perimeter what is the perimeter of rectangle?

*Sunday, February 12, 2017 by deepti*

**math**

Alex invested money in two accounts, and after one year, one of them had earned 13% interest and the other 9%. He had $700 more invested in the lower interest account and earned a total of 239 in interest after one year. How much did Alex invest in each account?

*Saturday, February 11, 2017 by sukh*

**Math**

The amount of bacteria after and then it in the initial amount of bacteria is Q in the amount of the bacteria triples every 15 seconds hence the answer should contain Q as well as n

*Saturday, February 11, 2017 by Tonya*

**Math**

A rectangular sand box has a length of 5 1/3 feet and a width of 3 3/4 feet why is the answer reasonable

*Saturday, February 11, 2017 by Ciara lopez*

**math**

explain and demonstrate how to change 4/20 into a percent there are two ways we can work this out 4/20 times by 5 overall to get it out of 100, becomes 20/100. or you can do 4/20 then times that by 10 or 20 x what = 100? 5, right? so multiply 4 x 5 and there's your percentage...

*Saturday, February 11, 2017 by lreyesorg*

**Math**

Combine like terms to simplify the expression. 1/_4+6+9y= Answer: 5y+6 2/ 20a+7+3= Answer: 20+10 3/_5k+9_2+9k= Answer: 4k+7 4/ 17+2.9h+3= Answer: 30+14 Simplify the expression. 5/ _4(3+d)+7d_d= Answer: _16+6d 6/ 8+5(j_5)+3j_1= Answer: 32+8j_1 7/ 9(b_3)+4(b_5)= Answer: 5b+22 8...

*Saturday, February 11, 2017 by Nnnnn*

**math**

In a class, every student knows French or German (or both). 15 students know French, and 17 students know German What is the smallest possible number of students in that class?

*Saturday, February 11, 2017 by annie*

**math**

You and some friends rent a limo for a formal reception the bill for the evening is $53.00. A tax of 6% will be added to your total. And you want to tip the waiter you decide to leave him a tip that is 20% of the bill before tax is added, how much will the waiter be paid? my ...

*Saturday, February 11, 2017 by Cactus*

**math**

A company has sales of 160, 000 which represents a 6.5% increase over the previous year. What were the sales the previous year?

*Saturday, February 11, 2017 by sukh*

**math**

The graphs of f(x)=−5/3x+9 and g(x)=2^x−1 intersect at (3, 4) . What is the solution of −5/3x+9=2^x−1 ? Enter your answer in the box.

*Saturday, February 11, 2017 by Jay*

**math**

A rope goes from one building to another. The distance between the buildings is 10m, and the rope is tied at each building at a point 8m and 4m from the ground. Find the length of the rope.

*Saturday, February 11, 2017 by maria*

**Math**

Find the surface area of the cylinder. Use 3.14 for pi. The cylinder's radius is 2 and the height is 15. A)100.4 cm squared B)97.43 cm squared C)36.29 cm squared*** D)33.14 cm squared

*Saturday, February 11, 2017 by potato*

**math**

An old lady has 125 cats. Seven of them are old, 9 of them are her favorite, 5 of them are both (old and favorite). How many of them are neither old nor favorite?

*Saturday, February 11, 2017 by annie*

**math**

What is the solution of the system of equations? y=5/6x+1 −x+y=2 Enter your answer in the boxes.

*Saturday, February 11, 2017 by Jay*

**math**

What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.

*Saturday, February 11, 2017 by Jay*

**MATH TEST(tipps)**

i have a math test in a week away plz give me some tips so i can past it (first time here)

*Saturday, February 11, 2017 by tomboy(girl)*

**math**

A carton of mass 35kg is at rest on a rough plane inclined at an angle of 40 degrees to the horizontal. Calculate the magnitude of the friction force in newtons.

*Saturday, February 11, 2017 by s17*

**math**

A bucket hangs from two wires. The left-hand wire makes an angle of 60 with the vertical, and the magnitude of the tension in the wire is 326N. The right-hand wire makes an angle of 45 with the vertical. Calculate the mass of the bucket, in kilograms, to two significant ...

*Saturday, February 11, 2017 by s17*

**Math**

Put these fractions in order smallest to largest 7/10 11/20 4/5

*Saturday, February 11, 2017 by Amee*

**math**

the lenghts of the diagonals of a rhombus are 16cm and 12cm respectively.find the lenght of each of the sides

*Saturday, February 11, 2017 by Aditya singh*

**Math**

I have fewer than 30 marbled I can put them equally into 2 groups 6 groups or 9 groups how many marbles do I have

*Saturday, February 11, 2017 by Syahrul*

**math**

Nikita sold two wheeler through agent she got Rs 17150 for it after paying agrnt if commission was paid at 2% find selling price

*Saturday, February 11, 2017 by anjali*

**slope intercept, math**

The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope?

*Saturday, February 11, 2017 by Quarie*

**math**

Find a fraction which reduces to 2/3 when 3 is adding to both its numerator and denominator and reduces to 3/5 when 1 is added to both its numreator and denominator

*Saturday, February 11, 2017 by naimish dixit*

**math**

The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope?

*Saturday, February 11, 2017 by Quarie*

**math**

On Wednesday you drove from home to work at 65 mph and got there in 28 minutes. On Thursday you drove at 78 mph. Round answers to nearest 10th. Use: R1T1=R2T2 (double click this to see clearer) Round to the nearest 10th and Use Unit Abbreviations for Units. How long does the ...

*Saturday, February 11, 2017 by yatta*

**math**

George need to move $2 million out of the country. The dimensions of a US bill is 2.61 inches by 6.14 inches by 0.0043 inches. How many cubic feet will this be in $5 bills? Round answer to the nearest 10th.

*Saturday, February 11, 2017 by briget*

**Math**

A certain medicine requires 10 mg per 40 kg of weight. How much medicine is required for a patient that weighs 203 pounds? Round answer to the nearest 10th. Use Unit Abbreviations for Units

*Saturday, February 11, 2017 by chirssy*

**4th grade math**

Karen jogs 1/2 mile. Selma jogs 1/4 mile more than Karen. Lena jogs 3/4 mile more than Selma. How far does Lena jog?

*Saturday, February 11, 2017 by ita*

**Math**

Natasha went to Japan for a business trip. Natasha converted $1100US into 110682 Yen at the local bank. Natasha spent 87438.78 Yen on this trip and returned with the remaining Yen to the US. How much will the remaining Yen convert to in US Dollars when Natasha returns from ...

*Friday, February 10, 2017 by april*

**Math**

A store discounted everything by 56%. The sales price of a dress is $202.92. What was the original cost of the item?

*Friday, February 10, 2017 by Anyavia*

**Math**

A store marked up the cost of a dress from $44.39 to $91.00. What is the percent markup for this a dress? Round answer to nearest 10th.

*Friday, February 10, 2017 by Alexis*

**math**

If x/y=2 and x*y*a=0, which has to be zero? assuming each variable is a different value. I said a has to be zero but I don't know if this is true or how to write the question.

*Friday, February 10, 2017 by Quarie*

**4th grade math**

A grocery store has 5 pounds of granola. One customer buys 2/3 pound of granola and another buys 5/6 pound. After these purchases, how much granola is left?

*Friday, February 10, 2017 by ita*

**math**

An open box is to be made from a square piece of material by cutting four-centimeter squares from each corner and turning up the sides (see figure). The volume of the finished box is to be 576 cubic centimeters. Find the size of the original piece of material.

*Friday, February 10, 2017 by Anonymous*

**Math**

How many Calories are in all sodas and add them up then multiple the answer try

*Friday, February 10, 2017 by Torrance*

**Math**

Suppose 3 student change their vote from math to science describe how the frequency gable would change

*Friday, February 10, 2017 by Tinoi*

**math check answers**

For questions 3 and 4, you will be answering by filling in the blank. Please be aware that your answer must include any commas or decimals in their proper places in order to be correct. The dollar signs have been provided. For example, if the answer is $1,860.78, then you will...

*Friday, February 10, 2017 by megan*

**4 grade math**

Caroline places five poles A, B, C, D, and E in order along a straight line.The distance between poles A and D is 1 yard. The distance between poles B and C is the same as the distance between poles A and B. Poles A and B are 1/5 yard apart. The distance between D and E is 7/...

*Friday, February 10, 2017 by jjj*

**math**

One side of triangle is 5 more than 2 times the shortest side. The third side is 23 feet more than the shortest side. The perimeter is 72. Find all three sides.

*Friday, February 10, 2017 by j*

**math**

a document that is 14 inches by 18 inches is redrawn at 1 1/2 scale an redrawn again at1/2 scale. what are the final dimensions?

*Friday, February 10, 2017 by harsh*

**math**

sue has 19 feet of material. she plans on making scarves. if each scarf is to be 7 1/2 inches, how many can she make?

*Friday, February 10, 2017 by janice*

**math**

Write an algebraic expression to answer the question below. How many minutes are there in h hours?

*Friday, February 10, 2017 by m*

**math (Ms. Sue plz help)**

Plz help my dad dose have time for me my mom die when i was a little girl plz do help me and i am not lieing a 4x4 grid with 5 blocks shaded (1 point) one over five, 25% *** five sixteenths, 31.25% one over four, 20% one over four, 25% 2. Model 32% on a 5 × 5 grid. (1 point) ...

*Friday, February 10, 2017 by tita*

**Math**

what is the value of x in the quadrilateral shown below ( IDK HOW TO PUT IT IN ) A.80 B.70 c.60

*Friday, February 10, 2017 by Skyla*

**Math**

Four members of the Kaplan family will take a river trip down the Colorado River in Colorado State Park. The rafting company charges $10 per person for a half-day river trip, or $100 flat rate for a half-day river trip. The raft can hold up to 10 people. How much will the trip...

*Friday, February 10, 2017 by Ana*

**Math**

Moore Supermarket began the year with 300 boxes of oat flake cereal with a unit cost of $1.89. During the year, the following additional purchases were made: May 1 200 boxes@$2.10/each June 1 400 boxes@$2.20/each August 1 250 boxes@$2.40/each At the end of the year, Moore had ...

*Friday, February 10, 2017 by Cache*

**MATH**

who knows what 12 x 12 x 57x 88x50957 =???????????

*Friday, February 10, 2017 by KEALSEA IN DA HOUSE ;)))*

**math**

if there are 44009 dogs in the pound and someone comes and takes 555 dogs , how many dogs are left. but the person had 1737394 cats but the dogs chased the cats to the pound. how many animals are now in the pound?

*Friday, February 10, 2017 by I NEED HELP!!!!!!!!!!!!!*

**math**

What is the side length of the smallest square plate on which a 26-cm chopstick can fit along a diagonal without any overhang?

*Friday, February 10, 2017 by Anonymous*

**Math help FAST**

Find the values of x,y, and x = 91Â°; y=51Â°; z = 31Â°*** x = 89Â°; y=91Â°; z = 0Â° x = 60Â°; y=120Â°; z = 31Â° x = 91Â°; y= 89Â°; z = 31Â°

*Friday, February 10, 2017 by InsertNameHere*

**Math**

The land area of Statesville, NC, is 20.5 square miles. If the entire US population (currently about 320.2 million) were put inside the city limits of Statesville, determine the number of square feet that each person would have. Round your answer to two decimal places. [Hint: ...

*Friday, February 10, 2017 by J*

**Math**

You need to buy some chicken for dinner tonight. You found an ad showing that the store across town has it on sale for $2.89 a pound, which is cheaper than your usual neighborhood store, which sells it for $2.99 a pound. Is it worth the extra drive? First, determine what ...

*Friday, February 10, 2017 by J*

**Math**

A 6 inch personal pizza has 630 calories, with 240 of those from fat. A 16 inch pizza is cut into 8 slices. Estimate the number of calories in one slice of a 16 inch pizza.

*Friday, February 10, 2017 by J*

**Math**

It takes a hose 4 minutes to fill a rectangular aquarium 8 inches long, 9 inches wide, and 14 inches tall. How long will it take the same hose to fill an aquarium measuring 24 inches by 27 inches by 31 inches?

*Friday, February 10, 2017 by J*

**Math**

The difference between the simple interest received from two different sources on Rs.1500 for 3 years is Rs.13.50.The difference between their rates of interest is?

*Friday, February 10, 2017 by !*

**Math**

4. Point Q is the midpoint of PS, which of the following completes the statement? PQ=56ft; QS = 28ft 56ft*** 74ft 112ft

*Friday, February 10, 2017 by InsertNameHere*

**Math**

A jug is 3/5 full of juice and if 100 ml is added to it it becomes 2/3 ful. How many literature can the jug hold?? Thanks a lot for hepl

*Friday, February 10, 2017 by Wow*

**Math College freshman**

What is the linear equation for the following table? x h(x) 20 20 40 -100 60 -220 80 -340 100 -460

*Friday, February 10, 2017 by Maritza Rodriguez*

**Math 115**

Calculate the slope and write an equation for the linear function represented by each of the given table. A W 5 30 7 40 W=_?___ I PUT W=5x+5 and W=5+5x BUT IT SAID IT WAS WRONG.

*Friday, February 10, 2017 by Michelle*

**Math**

In the last basketball game, Kevin scored 2 less than a third of his team's points. Part A: Let n represent the number of points Kevin's team scored. Write an expression for the number of points Kevin scored. Part B: Kevin scored 14 points. How many points did the team score

*Friday, February 10, 2017 by Manny*

**Math**

I just want to make sure I'm right. Representing a portion of another portion can be thought of as finding a part of apart. For each of the parts described below figure out what part of the whole is described. for each problem show at least one picture or diagram that helps ...

*Thursday, February 9, 2017 by Jessica*

**Math**

On a centimter dot grid, draw all pissible rectangles with area of 12 sq cm and sides whose length s are whole centimeters. Label the lengths of two adjacent sides of each rectangle.

*Thursday, February 9, 2017 by Chris*

**Math**

How you do multiplication as scaling like 2 1/2 x 3 2/3 3 2/3 I suppose to say if it is <, >, or = Can someone explain how to solve this problem I need to learn how to do it because my daughter is having trouble getting it and I don't know how to do it

*Thursday, February 9, 2017 by Lety*

**Math**

Divide. Use estimation to check. 585 divided by 3 solve

*Thursday, February 9, 2017 by Franky*

**math**

A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per year. Let the variable t represent time in years and h represent height in feet. In how many years will the trees be the same height? Which system of ...

*Thursday, February 9, 2017 by Jay*

**math**

A certain medicine requires 10 mg per 10 kg of weight. How much medicine is required for a patient that weighs 273 pounds? Round answer to the nearest 10th. Use Unit Abbreviations for Units.

*Thursday, February 9, 2017 by chas*

**Math**

In one hour, Ed used 2/5 of time to complete his homework and 1/4 of the time to check his email. How much time did he spend completing homework and checking email? Write answer as a fraction

*Thursday, February 9, 2017 by Olga*

**math**

I dont quite get these 2 questions off of my homework. - "Complete the equation" (b^2)^0 = b^8 I keep getting one, but its not an answer choice so I know I'm wrong. "Simplify the expression" p(p^-7q^3)^-2q^-3 I think the q's and p's are messing me up.

*Thursday, February 9, 2017 by liam*

**Math**

A store discounted everything by 51%. The sales price of a scarf is $72.89. What was the original cost of the item?

*Thursday, February 9, 2017 by Christian*

**math**

What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.

*Thursday, February 9, 2017 by Jay*

**math**

Solve. 2d−e=7 d+e=5 Use the linear combination method. The solution is (3, −1) . The solution is (4, 1). There are infinitely many solutions. There is no solution.

*Thursday, February 9, 2017 by Jay*

**Math**

You have \$20$20dollar sign, 20 to spend on taxi fare. The ride costs \$5$5dollar sign, 5 plus \$2.50$2.50dollar sign, 2, point, 50 per mile. Let mmm represent the number of miles ridden. Write an inequality to determine how many miles you can ride for \$20$20dollar sign, 20. ...

*Thursday, February 9, 2017 by Anuraj*

**Math**

The average household uses 2 bags of sugar per household per month. Each bag of sugar weighs 10 pounds. Assume that that there are 3 people in each household on average and that the US population is 336 million. How many pounds of sugar does the US consume per year? You can ...

*Thursday, February 9, 2017 by bj*

**Math**

Patrice's car gets 30 miles per gallon. Patrice went on a vacation and used 28.2 gallons of gas for the trip. Patrice rode a bike or the bus after reaching the vacation location, so the car was only used for the drive there and back. How far away was Patrice's destination?

*Thursday, February 9, 2017 by anaya*

**math**

Solve. y=x−8 2x+3y=1 use the substitution method. (4, −4) (5, −3) (2, −6) (0, −8)

*Thursday, February 9, 2017 by Jay*