Branches of Math
Recent Math Questions
If the probability of landing on a certain color is p, write an expression for the probability of not landing on that color or the complement. Suppose the probability of p is 1/4. Solve the expression and explain their relationship. The wheel has 4 colors: 2 parts a red 2 are ...
Tuesday, January 6, 2015 at 11:53pm
A distressed ship is 10 miles south and 8 miles east of a coast guard station. a) What bearing should the coast guard boat take to reach the distressed ship? b)How many miles will the coast guard boat travel? c)If the coast guard boat is traveling 30 miles per hour, how long ...
Tuesday, January 6, 2015 at 11:52pm
the sum of an even integer and twice the next greater even integer is the same as the difference between five times the greater even integer is 14. Find the integers. There are two solutions
Tuesday, January 6, 2015 at 10:59pm
find both the x - intercept and the y-intercept of the line given by the equation 1.8x+9.9y-6.3=0. Round the answer to 2 decimal places. Thank you again for the help
Tuesday, January 6, 2015 at 10:42pm
Mia buys 3 gallons of gas that costs d dollars per gallon. Bob buys g gallons of gas that costs $3 per gallon. a) Write an expression for the amount Mia pays for the gas. b) Write an expression for the amount Bob pays for the gas. c) What do the numeral and the variable ...
Tuesday, January 6, 2015 at 10:41pm
You plan to construct a brick wall measuring 14.5 ft. in length, 5.5 ft. high, and 0.5 ft. in width. If a brick measures 6 in. x 4 in. x 2 in., how many bricks will you need? (Remember to round up.)
Tuesday, January 6, 2015 at 10:16pm
How can I solve this question, Write 83.9% as a decimal, and write 0.038 as a percentage. I just can not remember how to do this. Sorry and thank you for your help and time.
Tuesday, January 6, 2015 at 10:03pm
there was 112 seats in the school auditorium.there are 7 rows of seats in each row. there are 70 people seated, filling up full rows of seats. how many seats are empty?
Tuesday, January 6, 2015 at 8:50pm
the formula for the volume of a cone is v=1/3pir^2h. The volume cone x is 2 times the volume of cone Y. Why the height of cone X is 2 times the heigh of the cone Y, and the radius of cone X is the same as the radius of cone Y.
Tuesday, January 6, 2015 at 7:56pm
7th grade challenge math
of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?
Tuesday, January 6, 2015 at 7:36pm
a piece of ribbon is cut into two shorter pieces in the ratio 2.8 : 1.25 The difference in the length of the shorter pieces is 80.6 cm. What is the length of the original piece?
Tuesday, January 6, 2015 at 7:36pm
Juan invested $24,000 in a mutual fund 5 years ago. Today his investment is worth $34,616. Find the effective annual rate of return on his investment over the 5-year period.
Tuesday, January 6, 2015 at 7:29pm
Carrie and Krystal are taking a road trip from Greenville to North Valley . Each person has her own map,and the scales on the map are different. A.On Carrie's map, Greenville and North Valley are 4.5 inches apart.The scale on her map is 1 inch=20 miles. How far is ...
Tuesday, January 6, 2015 at 7:10pm
A football stadium can seat 80,000 people The stadium sells tickets for luxury suites and general admission. The stadium cannot sell more than 200 lucury suites and no more than 77,000 tickets for regular admission. If a new stadium will be made to hold 150,000 people which of...
Tuesday, January 6, 2015 at 6:59pm
One afternoon, kassims sandwich shop sells 15 sandwiches in 45 minutes. If the shop continues to sell sandwiches at the same rate, about how many sandwiches will the shop sell in 3 hours?
Tuesday, January 6, 2015 at 6:42pm
there are markers every 1000 feet along the side of a road. While driving, Mai passes marker number 15 at 10:05 and marker number 39 at 10:11. find mai's average speed feet per minute. use dimensional analysis to check the reasonableness of your answer.
Tuesday, January 6, 2015 at 6:23pm
You can buy one 10 pack of AAA batteries for $5.49 and get one battery free, or you can buy two 4 packs for $2.98. Which has the lower unit price per battery? please help and show me the steps, thank you
Tuesday, January 6, 2015 at 6:19pm
A school is printing t-shirts for students. They have 2 different prices. Company A says they will print 16 t-shirts for $40. Company B will print 84 t-shirts for $140. Which is a better price? Please prove your answer.
Tuesday, January 6, 2015 at 5:24pm
7d-4 (d+8) = -8 ??? When I did this equation I got 8=d I know I did something wrong. I just dont know any other way to do it. I did basic equation-solving rules and got his answer. Help?
Tuesday, January 6, 2015 at 5:22pm
This table shows the numbers of students in different classes that are in the math club. Students in math club Boys / Girls Mrs.Smith 3 / 4 Ms.Jones 4 / 6 Mr.Brown 3 / 4 a. What fraction of the students in the math club are boys from Mrs. Smiths class? b. What fraction ...
Tuesday, January 6, 2015 at 5:08pm
What are the characteristics of a right angle? This is my answer: It is 90 degrees, it is also perpendicular line, it is also half a straight line of 180 degrees. Is this correct?
Tuesday, January 6, 2015 at 5:02pm
What is the area of the rectangle with the width of 6x^2 and the length of 12x^3? hint: x=5 I got 6*5^2=900; 12*5^3=216,000 for a total of 216,900 is that correct? If it is wrong can you show me how to do them? THANKS
Tuesday, January 6, 2015 at 5:01pm
The cubes show how many students rode the bus to school today How many students rode the bus to school? A 14 B 15 C 16 D 17 Three rows of five blocks and 1 row with only two blocks
Tuesday, January 6, 2015 at 4:49pm
A punch recipe says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups seltzer in order to make 18 servings of punch. A) How many cups of each pineapple juice do you need to make 108 cups of punch? I would appreciate it if you can show me how to do this problem
Tuesday, January 6, 2015 at 4:32pm
How do you solve the following problems: What is the area of a square with the length of a side equaling 3a^5? I got (3a^5)(3a^5)=9a^10 is that correct?? What is the area of the rectangle with the width of 6x^2 and the length of 12x^3? I got 6*5^2=900; 12*5^3=216,000 for a ...
Tuesday, January 6, 2015 at 3:51pm
((2x)/(x-1)) - (9/(x-2)) Is the answer (2x^2 - 13x + 9)/(x^2 - 3x + 2), or can it be simplified further? I got an answer to this question before, but it seems like they did it with 9x instead of 9.
Tuesday, January 6, 2015 at 2:52pm
4. Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of the cards is left? A. 18.75% B. 53.33% C. 46.67% D. 21.43% I think it is B or C?
Tuesday, January 6, 2015 at 2:15pm
In a triathlon, a contestant swims 5 km, cycles 30 km, and then runs 20 km. In general, a contestant runs at an average speed of x, swimsat an average speed of x/5, and cycles at an average speed of 5x, where x is in kilometres per hour. a) Determine an expression for the ...
Tuesday, January 6, 2015 at 1:52pm
The velocity of an object is given by the formula v=25t-80, where the time is expressed in seconds and the velocity is expressed in feet per second. Find the times when the magnitude of the velocity is equal to 60 ft/s
Tuesday, January 6, 2015 at 1:50pm
The area of a tennis court can be represented approximately by the function A(x) = 10x2 + 3x - 1, and its length can be represented by l(x) = 5x - 1, where x is a distance, in metres. a) Write and simplify a function, w(x), to represent the width of a tennis court. (2 marks) b...
Tuesday, January 6, 2015 at 1:34pm
17. a restaurant has one type of milk that has 2% fat and another that has 7% fat. How many quarts of each type does the restaurant need to make 40 quarts of a milk mixture that 5% fat (1 point) A. 10 lawns B. 50 lawns C. 100 lawns D. 1,000 lawns
Tuesday, January 6, 2015 at 1:09pm
A scientist is monitoring the temperature of a holding tank containing fish to be released into a river. In one 12-h period, the highest temperature was 10.4°C and the lowest temperature was 7.6°C. Write an absolute value equation that can be used to report the highest...
Tuesday, January 6, 2015 at 1:05pm
A product that was originally priced at $2,000 had it'd price increased on June 1 by 5%. On December 1 the price was increased by 5% of the new June price. By how many dollars did the price increase on December 1?
Tuesday, January 6, 2015 at 11:43am
A factory packs water in half liter, one liter, two liter and five bottles. On a certain day, the factory packed 20 840 bottles and of water .out of these, 8120 were half liter bottles and 3960 were two liters bottles. One liter bottles were 2000 more than the two liter ...
Tuesday, January 6, 2015 at 12:03am
Paint was stored in three containers of 48 liters, 72 liters and 30 liters . The paint in each container was the repacked into smaller containers. The amount of paint in each of s smaller containers was the same. What was the capacity of the largest container used to repack ...
Tuesday, January 6, 2015 at 12:00am
Fifteen painters can paint a number of houses in 12 days .if the number of painters is increased by 5, how many days less would it take the painters working at the same rate to paint the houses?
Monday, January 5, 2015 at 11:51pm
A woman walks 200 yards west along a straight shoreline and then swims 50 yards north into the ocean on a line that is perpendicular to the shoreline. Using her starting point as the pole and the east direction as the polar axis, give her current position polar coordinates. ...
Monday, January 5, 2015 at 10:57pm
Leah has two same size rectangles divided into the same number of equal parts.One rectangle has 1/3 of the parts shaded,and the other has 2/5 of the parts shaded.What is the least number of parts into which both rectangles could be divided?
Monday, January 5, 2015 at 9:56pm
Mike started a savings account by depositing $9. Each month, he deposits more money than the month before. At the end of 41 months, he has saved $9,389.00. How much more does he deposit each month?
Monday, January 5, 2015 at 9:21pm
Katie picked 7 times as many strawberries as Garrett. Garrett picked 6 quarts of strawberries. How many quarts did Katie pick? Which two multiplication facts can you use to help find the solution ?
Monday, January 5, 2015 at 8:07pm
Q. There is a hot hair ballon festival in System Springs. Seventy two gallons registered to participate,paying $25 each. Five of those who registered didn't show up and we refunded half of their money.mthree additional balloons showed up and paid the registration cost plus...
Monday, January 5, 2015 at 7:23pm
Math problem solving
An octagonal stop sign can be cut from a square sheet of metal, 750mm on a side. To the nearest hundredth, what percentage of the metal square is wasted when the octagon is of maximum size ?
Monday, January 5, 2015 at 6:51pm
A license plate manufacturer is punching plates with pattern: L#L-##LL where L represents a letter and a # represents a digit from 0 through 9.If a letter can be any letter from A to Z except,O, how many different license plates are possible?
Monday, January 5, 2015 at 6:04pm
The number 2 is chosen to begin a ladder diagram to find the prime factorization of 66. What other numbers could have been used to start the ladder diagram for 66? How does starting with a different number change the diagram?
Monday, January 5, 2015 at 5:55pm
Jim, Juan, Mary, and John are all managers for the same company Jim always meets the sales goals Juan exceeded the goal by 15% on Tuesday and 10% on Wednesday. Marys goals for each day of the week are 5% lower than the goals for other managers. ...
Monday, January 5, 2015 at 5:34pm
A carpenter has a wooden stick that is 84cm long.she cuts off 25% from the end of the stick .then she cuts the remaining stick into 6 equal pieces.what is the length of each piece?
Monday, January 5, 2015 at 5:04pm
Water flows over a dam at a rate of 500 gallons per minute. Write a function rule relating the amount of water (A) that flows over the dam to the number of minutes (M) that have passed. What are the initial value and rate of change?
Monday, January 5, 2015 at 4:59pm
HELP PLEASE!!! I'm having some trouble with this question on my Maths hw. Any help is appreciated:) Identify the domain and range of the function. y=-0.25x^2 1. domain: (-oo, 0] range: (-oo, oo) 2. domain: (-oo, oo) range: (-oo, 0] 3. domain: (-oo, oo) range: (-oo, 0) 4. ...
Monday, January 5, 2015 at 4:56pm
May has 10 fewer marbles than Albert. May has 5 more marbles than Jenny. Albert gives4 marbles to Jenny. May gives another 6 marbles to Jenny. Jenny has 13 marbles now. Find the number of marbles each of them had at first. Jenny had 3 marbles. May had 8 marbles. Albert had 18 ...
Monday, January 5, 2015 at 4:49pm