# Homework Help: Math

## Branches of Math

## Recent Math Questions

**Math**

theoretically if you roll a number cube 36 times, how many times would you expect to roll the number one? could you also give me explanation? Thank you. and also answer as fast as possible.

*Monday, March 13, 2017 by David*

**Math**

How would you know if triangles are regular or irregular

*Monday, March 13, 2017 by Young Trippy Lil G*

**Math**

Letter tiles a in a bag. Without looking I am going to draw one tile. Here are the letter tiles O,I,S,P,L,A What are my chances of drawing a vowel? A. 0.3 B. 0.05 C. 0.5 D. 3

*Monday, March 13, 2017 by Larry*

**Math**

120 people attended the baseball game. Adults cost $6 and students cost $4 to attend the game. The game raised $600 from the attendance. How many students attended the game?

*Monday, March 13, 2017 by Jordyn*

**MATH**

1. Show, from the definition, that if A:B::C:D and C:D::E:F then A : B :: E : F.

*Monday, March 13, 2017 by Sara*

**HELP MATH**

Mr. Kwon has just enough money to buy only 20 mangoes or only 30 oranges. If he wants to buy equal numbers of mangoes and oranges together, how many of each type can he buy with the money?

*Monday, March 13, 2017 by Sara*

**Math**

1. 85 is 40 of what number? A. 212.5 B. 47.1 C. 34 D. 45 2. Find the commission on a $1,250 sale with a commission rate of 5%. A. $62.50 B. $6.25 C. $75.00 D. $125.00 3. Ben bought a desk for $249.99. The sale tax rate was 6.25%. How much did Ben pay for the desk? Round your ...

*Monday, March 13, 2017 by CanYouHelpMe*

**math**

book which costs $12. He has saved one third of the amount he needs. How much money does he still need to save?

*Monday, March 13, 2017 by marcus*

**math**

write triangular formulas to find numbers between 10 and 30

*Monday, March 13, 2017 by Ann*

**math**

decreased 20 by double the square of -4

*Monday, March 13, 2017 by Anonymous*

**Math**

Three fourth of the number of girls in a school is equal to half of the number of the boys.if the school has 1420 pupils.how many of them are boys.

*Monday, March 13, 2017 by Ashok tirkey*

**Math**

The pitch of a screw is the distance between its threads. With each complete rotation, the screw goes in or out a distance equal to its pitch. If the pitch of a screw is 1/17 inch, how far will it go into a piece of oak when it is turned 14 complete rotations clockwise?

*Monday, March 13, 2017 by angel*

**math**

Number of different words that can be formed using all the letters of the word DEEPMALA if two vowels are together and the other two are also together but separated from the first two

*Monday, March 13, 2017 by dharmapal*

**Math**

Winnies friend marco guessed that her riddle was about the number 79 Why can't 79 be the answer to Winnies riddle

*Sunday, March 12, 2017 by Jamaya*

**Math**

Brian is baking cookies for Zachary's birthday party if an Bryan uses 1 1/4 cups of flour for every 10 cookies if Brian needs to make 50 cookies and he have 4 cups of flour how much more flower Brian need to finish baking

*Sunday, March 12, 2017 by Bryan*

**math**

Graph the equation y = 1 + 2 sin x. This curve crosses the x-axis in several places. Identify all the x-intercepts with 0 < x < 360.

*Sunday, March 12, 2017 by grace*

**Math**

Mr. Dinkelspiel bought $32.56 worth of stamps. He bought 20 more 19-cent stamps than 50-cent stamps. He bought twice as many 32-cent stamps as 19- cent stamps. How many of each kind did he buy?

*Sunday, March 12, 2017 by Sara*

**Math**

Mr. Kwon has just enough money to buy only 20 mangoes or only 30 oranges. If he wants to buy equal numbers of mangoes and oranges together, how many of each type can he buy with the money?

*Sunday, March 12, 2017 by Sara*

**Math**

True or false. Explain why 4^x/4 = 1^x 100(1.06)^x = 106^x

*Sunday, March 12, 2017 by Pam*

**Math**

Solve for the missing variable. 4^x =2 Example: 3^2n+1 = 3^4 Cross out both the threes 2n+1 =4 Subtract 1 2n=3 n=3/2

*Sunday, March 12, 2017 by Aria*

**Math**

The temperature increased 2° per hour. If the temperature rose 15°, how many hours had the temperature been rising?

*Sunday, March 12, 2017 by Nikko*

**Math**

The manager of a store orders canoes that cost $400 and sells them for 828. what percentage is the mark-up?

*Sunday, March 12, 2017 by Ana*

**Math**

Emily walk that a rate of 3 1/2 miles per hour for one and a 1 1/3 hours how far did she walk.

*Sunday, March 12, 2017 by Emma*

**Math**

each block in Toms neighborhood is two-thirds of a mile long. if he walks four and a half blocks how far does he walk.

*Sunday, March 12, 2017 by Malak*

**MATH**

Vail Ski Shop received a $1,201 invoice dated July 8 with 2/10, 1/15, n/60 terms. On July 22, Vail sent a $485 partial payment. (If more than one discount, assume date of last discount) a. What credit should Vail receive? Credit $ b. What is Vail’s outstanding balance? ...

*Sunday, March 12, 2017 by AMBER*

**Math**

The two stadiums with the largest capacities are Marshfield Stadium and Bowden Stadium. The capacity of Marshfield Stadium exceeds that of Bowden by 7,341 people. Combined, the two stadiums have a capacity of 210,355 people. Find the capacity of each stadium. Marshfield ...

*Sunday, March 12, 2017 by Tim*

**Math**

When wrapping a birthday gift in the shape of a rectangular prism for his mother, Kenji adds an additional 2.5 square feet of gift wrap to allow for overlap.How many square feet of gift wrap will Kenji use to wrap a gift 3.5 feet long, 18 inches wide, and 2 feet high? In this ...

*Sunday, March 12, 2017 by Thomas*

**Math**

For traffic that flows on a highway, the headway is the average time between vehicles. On four-lane highways, the probability P (as a decimal) that the headway is at least t seconds when there are 500 vehicles per hour traveling one way is given is P = 0.87t Under these ...

*Sunday, March 12, 2017 by Adam*

**Math**

Joan is 15 years older than her brother Bill.Eight years from now,Joan will be twice as old as Bill.How old is each at this time?

*Sunday, March 12, 2017 by Maleka*

**Business math**

No payments were made on a $3500 loan during its three-year term. What was the annually compounded nominal interest rate on the loan if the amount owed at the end of the term was $4298.73? (Round your answer to two decimal places.)

*Sunday, March 12, 2017 by Gagandeep Kaur*

**4th grade math**

1. After saving up for while, Melanie saved $12 of her allowance. She decided to spend 1/3 of that money at the book fair. the book she wanted was $5. Did she bring enough money to buy the $5 book. Draw a model to justify your answer. Answer - 12 x 1/3 = 12/3 =4. So she doesn'...

*Sunday, March 12, 2017 by Jared*

**math**

the ratio of corresponding sides of two similar triangles is 2:3 ,if the longer side is 5cm ,calculate the length of the shorter side

*Sunday, March 12, 2017 by Sharron.b*

**Math**

(−5)∙(3b−2a)−6(a+2b)

*Sunday, March 12, 2017 by Jamie*

**math**

The ratio of corresponding sides of two similar triangles is 2:3 ,if the longer side is 5cm ,calculate the length of the shorter side

*Sunday, March 12, 2017 by sharron*

**math**

A tower casts a shadow of 16m at the same time that a 2.5m post cast a shadow of 4m. How high is the tower?

*Sunday, March 12, 2017 by marjorie*

**Math (Sinking fund)**

Kenny opened a sinking fund account and hopes to accumulate $16,000 in 25 months. The yearly interest rate is 7.8%. How much should he invest per month to reach his goal? Would the answer be 591.58?

*Sunday, March 12, 2017 by Kerry*

**Math**

Sarah can afford $255 per month for 6 years on a car payment, what is the price of a car that she can afford at this time? Assume an annual interest rate of 8%. I do not remember how to solve for problems like this one.

*Sunday, March 12, 2017 by Maddie*

**math**

A trader has shs 250,000,he buys boxes of books at shs 25000 each and boxes of candles at shs 10,000 each,the money spent on books is atleast shs50000 morethan that spent on candles,he buys atleast 5boxes of books and atleast 7boxes of candles.Write down 4 inequalities to ...

*Sunday, March 12, 2017 by Deborah*

**Math**

Building A is 40m high.The angle of depression of the top of Building B from the top of A is 26 degrees.if the two buildings are 10m apart,find the height of building B

*Sunday, March 12, 2017 by Deborah*

**math**

Which of the following fractions is in its simplest form? 16/4 7/8 100/35 3/27

*Sunday, March 12, 2017 by mpendulo*

**Math**

A uniform beam AB of mass 84.78 kg rest against the smooth wall at A and the rough horizontal floor at B. The coefficient of static friction between the beam and the horizontal floor is U=0.249. Calculate the magnitude of the horizontal force P, in N, such that the end B has ...

*Sunday, March 12, 2017 by Mike Lian*

**Math / Physics**

A block P of mass 3.56 kg is lying on a rough inclined plane of angle θ = 0.73 radians. Block P is attached via a model string that passes over a model pulley to a second block Q of unknown mass M kg hanging vertically as shown in diagram. The coefficient of static friction ...

*Sunday, March 12, 2017 by SL*

**math**

If ab = 8 and a^2+b^2=16, then what is the value of (a+b)^2?

*Saturday, March 11, 2017 by Nathan*

**Math**

50 points decreased by 26% is__points.

*Saturday, March 11, 2017 by Madeline*

**Math**

8 meters increased by 25% is__meters. I got 32.

*Saturday, March 11, 2017 by Madeline*

**Math**

Use the addition property and/or the multiplication properties to find a and b. If -4<x<5 then a<4x+5<b .

*Saturday, March 11, 2017 by Sydney*

**math**

the minute hand of a clock is 10 cm long. through what exact distance does the tip move between 12p and 12:20 pm

*Saturday, March 11, 2017 by Anonymous*

**Math**

Use the percent formula, A=PB: A is Percent of B 30% of what number of 87%. Need help.

*Saturday, March 11, 2017 by Tim*

**Math**

When seven times a number is decreased by 8, the result is 55. What is the number. Help me to understand.

*Saturday, March 11, 2017 by Tim*

**Math**

i am the smallest 2-digit number. the difference between my two digits is 3 did you know me?

*Saturday, March 11, 2017 by Batta*

**Math (Stats)**

In order to predict y-values using the equation of a regression line, what must be true about the correlation coefficient of the variables? A. The correlation between variables must be an x-value of a point on the graph. B. The correlation between variables must be significant...

*Saturday, March 11, 2017 by Ray*

**math**

a company issues 150000 shares to three inventors, of the company declares a dividend of 35 cents per share, how much in dollars will each investor receive?

*Saturday, March 11, 2017 by ina*

**Math**

The length of a rectangular field is 300 m and it's breadth is 2/3 its length. If a road of width 10 m is built along the inner wall of the field, what is the area of the road?

*Saturday, March 11, 2017 by Minnie*

**math**

sum of frist 5 natural number

*Saturday, March 11, 2017 by junaid*

**Math,quadratic equation**

x^2-5x=5

*Saturday, March 11, 2017 by Lungisani*

**math**

From a group of 65 students who failed Business Mathematics in 2010 we found the following reasons: 35 for not attending class (C); 30 for not doing homework (H) and 25 for not visiting tutors (T). Fourteen did not attend class and did not visit tutors; 15 did not visit tutors...

*Saturday, March 11, 2017 by Michelle*

**Math**

The length of a rectangular field is 300 m and it's breadth is 2/3 its length. If a road of width 10 m is built along the inner wall of the field, what is the area of the road?

*Saturday, March 11, 2017 by Minnie*

**Math**

The perimeter of a rectangle is 200 m. If one of its sides is longer than the other side by 16 m, find the length of each of the sides

*Saturday, March 11, 2017 by Minnie*

**math**

at a party there is an equal number of boys and girls. One quarter of the boys have part-time jobs. Twice as many of the girls have part - time jobs. Altogether 30 of those present are without part-time jobs. Let x be the number of boys in the party?

*Saturday, March 11, 2017 by Anonymous*

**math**

a mobile phone company charge for a local call such that $0.5 in the first minute and $0.3 every minute there after. Find a formula for the total amount charged for call lasting in x minutes

*Saturday, March 11, 2017 by dona*

**Math**

The perimeter of a rectangle is 200 m. If one of its sides is longer than the other side by 16 m, find the length of each of the sides

*Saturday, March 11, 2017 by Minnie*

**math**

if A=5^3*7^3*3^4, find the smallest number A must be multiplied to get a perfect square

*Saturday, March 11, 2017 by lala*

**Math**

If 6th term of a GP is 9375 and its 4th term is 375.find its 9th term?

*Saturday, March 11, 2017 by Sohaib*

**Math Test (Check Answers)**

Voices in Verse Unit Test 1. C 2. C 3. A 4. A 5. A 6. Essay 7. D 8. B 9. D 10. B 11. C 12. D 13. B 14. C 15. D 16. B 17. A 18. B 19. B (This is just for who took the test and could tell me the incorrect ones)

*Saturday, March 11, 2017 by Ben*

**Math**

Graph the function Identify the vertex and axis of symmetry f(x)=2x^2 + 4x +1 please explain steps I need to do. I keep looking at notes and just can't grasp any of it. Failing math not sure how to start again. I think I missed something major.

*Saturday, March 11, 2017 by Anonymous*

**math**

the ratio of dogs to cats in the neighborhood was 3 to 7. If a total of 210 dogs and cats were in the neighborhood, how many cats were there?

*Friday, March 10, 2017 by Mom of a 6th grader*

**Math**

Similar polygons are _____ the same size. 1.(always) 2.sometimes 3.never

*Friday, March 10, 2017 by Help I need somebody not just anybody*

**Math,science,social,Hindi,english**

A person weighing 50kg runs up a hill raising himself vertically 10m in 20sec. Calculate the power of the person.

*Friday, March 10, 2017 by M.DAVINSI*

**Math**

F(x) = -x^2 - x +2 graph function identify the vertex and axis of symmerty. Can some one explain the steps to get answer? I know I need to find the points on a graph just so confused

*Friday, March 10, 2017 by Sam*

**MATH**

The grocery store parking lot is shaped like a parallelogram. Mr.Campbell is paving the parking lot.The area of the parking lot is 6x^2-3x-3m^2. what are the measures of the height and base of the parking lot. i did 3(2x^2-x-m^2) as my first step but now i am confused.

*Friday, March 10, 2017 by MATH*

**Math**

Please Help!!!! I do not understand and if someone could help that would be great! Thanks !! Problem #1: Find the total amount if you deposit $500 at a rate of 5% for two years using simple interest. Year 1 Year 2 Problem #2: Find the total amount if you deposit $300 at a rate...

*Friday, March 10, 2017 by Lela*

**Math**

The empty gas tank of the truck needs to be completely filled. The tank is shaped like a cylinder that is 4 feet long with a diameter of 2.4 feet. Suppose gas is poured into the tank at a rate of 1.7 thirds of a foot per minute. How many minutes does it take to fill the empty ...

*Friday, March 10, 2017 by Beenda*

**Math**

Abigail and Bailey wash dogs to make extra money. Abigail can wash all of the dogs in 5 hours. Bailey can wash all the dogs in 3 hours. How long will it take them to wash the dogs if they work together?

*Friday, March 10, 2017 by M, S, E*

**Math**

Suppose that y varies inversely with x. Write a function that models the inverse function. x = 25 when y = 5

*Friday, March 10, 2017 by M, Ellis*

**math**

Consider these two tables for Line 1 and Line 2. Line 1: x | y 0 1 3 4 Line 2: x | y 0 0 2 4 (a) Graph Line 1 (already did this) (b) Graph Line 2 on the same graph (already did this) (c) What is the solution to the system? Use graphing to solve. Explain your answer.

*Friday, March 10, 2017 by Bella*

**Accelerated Math**

The cost of a student ticket to the school play is $7. Write an equation that correctly relates the total cost, c, for a particular number, s, of student tickets purchased. Identify the independent and dependent variables. (3 points)

*Friday, March 10, 2017 by swimmerGirl*

**Math**

The lock is numbered from 0-49. Each combination uses a right,left, right pattern. Find the total # of possible combinations. I know for a fact it equals 125000 but how do you get that????

*Friday, March 10, 2017 by Madeline*

**Math**

which of the following is a diagram of XY

*Friday, March 10, 2017 by PLZ.Help ME*

**Math**

Why does refraction occur?

*Friday, March 10, 2017 by Reeses*

**math**

sector 2 on a spinner is a 90 digrese (sorry for spelling) sector. if the spinner is spun twice, what is the probability that it will stop in sector 2 both times?

*Friday, March 10, 2017 by kate*

**Math**

Find the area of a parallelogram:base 5 cm height 20cm

*Friday, March 10, 2017 by Kehlani*

**Math**

can some1 Correct me pls A class of 24 students was asked to identify a team sport in which they have participated. Their responses are shown in the line plot. a. How many responses are recorded in the line plot? b. What is the total number of students polled? c. Give a ...

*Friday, March 10, 2017 by Eek*

**Math**

Marcus bake loaf of bread of banana bread for a party he cut the loaf into equal size . At the end of the party there were 6 pieces left . Explain how you can find the number of pieces in the whole loaf if Marcus told 1/3 of the loaf was left

*Friday, March 10, 2017 by Jojo*

**math**

simplify (8*10^7)(7*10^4) i think it's 5.6*10^10 simplify (3*10^6)(8*10^-4) i think it's 2.4*10^3 Astronomers measure large distances in light-years. One light-year 5.88*10^12 mi Star is 9.8*10^1 light years from Earth in scientific notation how many miles I think it's 5.88*10...

*Friday, March 10, 2017 by q*

**math**

the scale 1;20000.calculat actual distance between two points which are 2.7 cm apar map..give answer in koilometers

*Friday, March 10, 2017 by shafiqah asim*

**Math**

I have been told to find the volume of 4 containers then the worksheet asked. "Now that you have completed your research, which container would you recommend using for each portion size that a customer might buy? Why is this size the best choice" I am confused by this problem ...

*Friday, March 10, 2017 by (Not telling)*

**Math**

PLEASE HELP ME I NEED ANSWERS FOR THE ASSESMENT METRIC UNITS

*Friday, March 10, 2017 by Anime Johnson*

**Math**

PLEASE HELP ME I NEED ANSWERS FOR THE ASSESMENT

*Friday, March 10, 2017 by Anime Johnson*

**math**

A customer purchased a jacket for $65. This was 80% of the original price.

*Friday, March 10, 2017 by Anonymous*

**math**

The number of employees at a plant continually fluctuates. One month started at 568. Then 102 employees were hired, and the next 57 employees were displaced. If the plant then plans to add 10% more employees, how many will it have?

*Friday, March 10, 2017 by Anonymous*

**math**

The value of an investment A (in dollars) after t years is given by the function A(t) = A0ekt . If it takes 10 years for an investment of $1,000 to triple, how many years will it take for the investment to be $9,000? Simplify your answer completely. I am very confused. So ...

*Friday, March 10, 2017 by Melissa*

**math**

Please help, 1) How do you solve 2017^2017 without a calculator? 2) What is the last digit of the solution to this problem: 2017^(2017^2017)? Thank you!

*Friday, March 10, 2017 by Onet*

**Math**

Find the volume of a square pyramid with a base length of 9cm and a height of 4cm

*Friday, March 10, 2017 by D.C. your*

**math**

walter deposits $5,000 in a bank account that pays 9% simple interest. If he doesn't change the principal, what will his balance be in 4 years?.

*Friday, March 10, 2017 by Anonymous*

**math**

if you know the radius of a circle how can you find its diameter?

*Friday, March 10, 2017 by Naomi*

**Math**

Write two different numbers that when rounded to the nearest tenth will give you 18.3

*Thursday, March 9, 2017 by Raul*

**Math**

√-3 is integer

*Thursday, March 9, 2017 by LEBOGANG*

**math**

After sales tax is added the total cost of 58.00 dollars purchade is 61.48 dollars What is the sales tax rate on the purchase?

*Thursday, March 9, 2017 by Anonymous*

**Math**

If I input 25 and I get an output of January what's the function rule

*Thursday, March 9, 2017 by Yooooo*

**Math**

Ann started reading at 4:00 PM and finished at 4:20 PM through what fraction of a circle did the minute hand turn

*Thursday, March 9, 2017 by Hannah*