Sunday

September 21, 2014

September 21, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

the first planhas a $16 monthly fee and charges an additional $.08 for each min. of calls. the second plan charges $10. fee and charges an addition $.13 for each min. for how many min. of calls will the cost be equal?
*Wednesday, August 27, 2014 at 12:14pm*

**math 221n**

A shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units?
*Wednesday, August 27, 2014 at 11:49am*

**Math**

A shooting game has 10 targets. The player has 10 arrows. In order to win the game, the player must shoot all 10 targets. What is the probability of shooting all 10 targets?
*Wednesday, August 27, 2014 at 7:02am*

**math**

Collect the water and electricity bill for your flat in the month of June, July and August- 2014. Construct a double bar graph for it. a) In which month is the consumption of water more? b) In which month is the consumption of electricity less?
*Wednesday, August 27, 2014 at 5:15am*

**Math, Science, Sociology, Economics**

Math: What is the answer to 1146(150+X)+8911(743+19X) Science: What is photosynthesis? Sociology: What is figuration and functionalism? Economics: What is Opportunity cost? Why is it relevant to life?
*Wednesday, August 27, 2014 at 2:14am*

**math**

Two students, Mary and John, play a game. Each time Mary passes “start” she received $25. Each time John passes “start” he receives 15% of the amount he already has. Both students start with $200. a. How much money will Mary have after she has passed “...
*Wednesday, August 27, 2014 at 2:01am*

**math**

10, 15, 25 what is the range ?
*Wednesday, August 27, 2014 at 12:56am*

**Math**

The exchange rate from US dollars (USD) to euros (EUR) is given by 1 USD = 0.753 EUR. Give the answers to the following correct to two decimal places. Roger receives 800 Australian dollars (AUD) for 610 EUR. Calculate the value of the US dollar in Australian dollars. Please ...
*Wednesday, August 27, 2014 at 12:55am*

**Math **

Is 2.2 miles too long of a distance to walk to school?
*Wednesday, August 27, 2014 at 12:47am*

**math**

Is 16.6 a rational number?
*Wednesday, August 27, 2014 at 12:15am*

**math**

is the square root of 9 a rational number?
*Tuesday, August 26, 2014 at 11:58pm*

**math**

I have a nickel. dime and a quarter, the dime is in the middle, how do I move the dime from center wihtout touching it. I would simply slide the nickel to the back
*Tuesday, August 26, 2014 at 11:35pm*

**Math-help please**

1) an architect built a model of a 220ft tall building . The model is 25inches tall and 10inches wide. How wide is the actual building , I know the answer is 88 but how do u get it.
*Tuesday, August 26, 2014 at 11:31pm*

**math**

A Coast Guard ship patrols an area of 125 square miles. The area the ship patrols is a square. About how long is each side of the square? Round your answer to the nearest mile.
*Tuesday, August 26, 2014 at 11:07pm*

**math**

Add the odd numbers divisible by 3 lying between 200 and 400.is arithmetic or geometric progression.
*Tuesday, August 26, 2014 at 11:04pm*

**math**

Johnny studied for his math test 2 hours over the week end. Abby study 3 times as many hours. Abby studied 3 times as many hours hours.. How many hours did Abby study? let x=How many hours Abby study 2 × 3 = X X=6
*Tuesday, August 26, 2014 at 10:34pm*

**math (4th grade)**

june made a DESIGN with 6 equal tiles.One tile is yellow, 2 tiles are blue,and 3 tiles are purple.What fraction of the tiles are yellow or purple?
*Tuesday, August 26, 2014 at 10:28pm*

**Math**

Hot dogs come in packages of 6. Hot dog buns come in packages of 8. Antonio will buy the same number of hot dogs as hot dog buns. How many hot dogs could he buy?
*Tuesday, August 26, 2014 at 10:11pm*

**Math**

In a class of 80 students, 40 bring their textbooks to class, 20 bring some sort of beverage to class, 60 bring calculators to class, while 5 students bring nothing to class. If 30 students bring both their textbooks and calculators to class, how many students bring only a ...
*Tuesday, August 26, 2014 at 9:32pm*

**math**

20,484,163 Write en expanded form
*Tuesday, August 26, 2014 at 9:17pm*

**math**

310,763,136 Write this number in word form
*Tuesday, August 26, 2014 at 9:15pm*

**math**

Write the number in two other forms 15,409
*Tuesday, August 26, 2014 at 9:13pm*

**math**

The cost for class trip is $5 per student plus$100 for the bus. Input(x) rule output(x) 18 22 24 30
*Tuesday, August 26, 2014 at 9:07pm*

**Math**

Find two pairs of numbers with 10 as their least common multiple
*Tuesday, August 26, 2014 at 8:49pm*

**math **

How do u solve the proportion for 2-x/8=3/4
*Tuesday, August 26, 2014 at 8:19pm*

**Math**

RD – z, t, or Chi-Square Test Study Background During this week you will work in your group discussion area to identify a research question created in week 1 that would utilize any of the following: z test, t test for single sample, independent samples t test, repeated ...
*Tuesday, August 26, 2014 at 8:07pm*

**Advanced Math**

Planting Depth(in)|Height (in) 3 |5 6 |9 6 |18 6 |8 7 |21 6 |12 4 |12 ----------------------------------------- a.Write the depths as integers b.list those integers from least to greatest c.write the heights as integers d.list those integers from least to greatest e....
*Tuesday, August 26, 2014 at 8:05pm*

**Math**

What number is 1,000,000 greater than 337,676
*Tuesday, August 26, 2014 at 7:54pm*

**math **

If x and y are positive, when is x-y negative?
*Tuesday, August 26, 2014 at 7:43pm*

**Math **

I tried them all ready I need help Create an equvilant expression using the fewest number of terms 2.5-4x+7+6x 4. 2(x-14)+ 3(3x+5) I can't figure it out can u show me how u get the answer plz and thank u
*Tuesday, August 26, 2014 at 7:22pm*

**Math help**

(6x^4-x^3+11x^2-2x-2)/(3x+1) i don't know to solve it
*Tuesday, August 26, 2014 at 6:48pm*

**MATH**

0.600 of the students are in sports. if there are 1000 kids in school, how many participate in a school sport? A-6000 B-600 C-60 or D-6
*Tuesday, August 26, 2014 at 6:34pm*

**Math**

If a car is driven at a speed of 78 mph and they travel for 3.5 hours , what is the distance traveled?
*Tuesday, August 26, 2014 at 5:49pm*

**Math**

The ratio of bananas to peaches in a fruit basket is 12 to 7. If there is 63 peaches then how many bananas are they
*Tuesday, August 26, 2014 at 5:31pm*

**math**

3x(4x-3y)-2(4x-3y)
*Tuesday, August 26, 2014 at 4:47pm*

**math**

Simplify (3y-5)(3y+5)
*Tuesday, August 26, 2014 at 4:45pm*

**math**

Without using mathematical table or calculator evaluate 0.18x12.5/0.05x0.2?
*Tuesday, August 26, 2014 at 4:16pm*

**Math**

RD – z, t, or Chi-Square Test Study Background During this week you will work in your group discussion area to identify a research question created in week 1 that would utilize any of the following: z test, t test for single sample, independent samples t test, repeated ...
*Tuesday, August 26, 2014 at 4:01pm*

**math**

to determine the number of trout in a lake, a conservationist catches 111 trout,tags them throws them back into the lake.later 28 throw are caught. 14 of them are tagged. how many trout would be conservationist expect to be in the lake?'
*Tuesday, August 26, 2014 at 3:50pm*

**math**

ok i dont know this so here it is it says use the number 913,256 and write the period that has the 913. what did they just say?
*Tuesday, August 26, 2014 at 3:18pm*

**Math**

At Lucy's Restaurant,1 3/4 a serving of tomato soup is cups. Lucy makes 63 cups of tomato soup each day. How many servings of tomato soup does she make?
*Tuesday, August 26, 2014 at 3:16pm*

**Math **

Pete is 5.77 cm taller than Kyle. Kyle is 155.09 cm tall. How tall is Pete?
*Tuesday, August 26, 2014 at 3:13pm*

**Check my math please ASAP**

If im not right then can you tell me which are wrong and right thanks 1.B 2.C 3.A 4.C 1.Which inequality is false? A.3 < 7 B.–8 < –5 C.–9 > –4 D.10 > –12 2.What are the integer solutions of the inequality |x| < 2 ? A.2 only B.2 and –...
*Tuesday, August 26, 2014 at 3:10pm*

**Math**

I'm writting a conclusion about my essay on poverty what should i say
*Tuesday, August 26, 2014 at 3:07pm*

**Math **

Pete is 5.77 cm taller than Kyle. Kyle is 155.09 cm tall. How tall is Pete?
*Tuesday, August 26, 2014 at 2:57pm*

**math**

Find two unit vectors that make an angle of 60° with v = <6, 8>
*Tuesday, August 26, 2014 at 2:53pm*

**Math **

What is the value of the expression when r = 3 and s = 11? 80 + (r2 × s2) + s (The "2" are squared, so its r squared and s squared.)
*Tuesday, August 26, 2014 at 2:47pm*

**math**

which property is represented by 5+(8)=8+5? A)Identity B)Associative C)Commutative D)Distributive Is the answer C
*Tuesday, August 26, 2014 at 1:57pm*

**math**

How many possible license plates can be made with 4 letters followed by 4 numbers and must start with the letter C
*Tuesday, August 26, 2014 at 1:39pm*

**Math**

(a) Themba wants to deposit a sum of money into a savings account so that he will have R30 000 in 3 years time for an overseas holiday how much money must he deposit into the account if the interest paid on the savings is 8,5% p.a (b) R1 000 is deposited in a savings account ...
*Tuesday, August 26, 2014 at 1:26pm*

**math**

What is another way to write 3x(4+7)? A.3x4+7 B.3x4x7 C.3x4+4x7 D.(3x4)+(3x7) Is the answer D?
*Tuesday, August 26, 2014 at 1:11pm*

**math**

25 August 2014 write in five letters without using numbers
*Tuesday, August 26, 2014 at 12:40pm*

**math**

Have I worked this problem correctly? The direction was to solve these equations 6x^2 +7 ______ 3x^2 +1 x^2-X^2=x 3/6=2 7-1=6 2x6
*Tuesday, August 26, 2014 at 12:23pm*

**math**

A is 15 years elder than B.5 years ago A is four times as old as B.find their present ages
*Tuesday, August 26, 2014 at 12:23pm*

**History,geography,tourism,math lit,zulu.**

Do Jiskha have A sarturday schools near soweto
*Tuesday, August 26, 2014 at 11:00am*

**Math**

Rachel is 2 times as tall as Kendall. Rich is 3 inches taller than Rachel. Brian is 74 inches tall and 1 inch shorter than Rich. How tall is Kendall?
*Tuesday, August 26, 2014 at 10:50am*

**math**

a. The formula for the velocity of an object is , where v is the velocity of the object, d is the distance traveled, and t is the time elapsed while that distance is traveled. If you had only this formula to work with, what should your first step be in determining how long it ...
*Tuesday, August 26, 2014 at 10:17am*

**Math **

Olivia uses 3/8 cup brown rice flour to make healthy dog treats. The expression 3/8 × t represents how much flour is needed to make t treats. How much brown rice flour is needed to make 10 1/2 treats?
*Tuesday, August 26, 2014 at 10:01am*

**Math**

The ratio of the number of red and blue candies in a jar is 7:8. If the percentage increase in the number of red and blue be 20% and 10% respectively , what will be the new ratio?
*Tuesday, August 26, 2014 at 8:42am*

**Math 114**

a store mixes kenyan coffee worth $11 per kilogram and turkish coffee worth $13 per kilo gram. The mixture is to sell for $12 per kilogram. Find how much of each should be used to make a 588 kilo mixture.
*Tuesday, August 26, 2014 at 8:40am*

**Math**

The incomes of Aslam, Babar and Rafeeq are in the ratio 2:3:5. If the increments of 15%,10% and 20% are allowed respectively in their salaries, then what will be new ratio of their income?
*Tuesday, August 26, 2014 at 8:14am*

**Math**

Evaluate: e^3016 (e is exponential)
*Tuesday, August 26, 2014 at 6:19am*

**math**

12,24,72,288 what is next
*Tuesday, August 26, 2014 at 12:21am*

**math**

(6x^4-x^3+11x^2-2x-2)/(3x+1)
*Tuesday, August 26, 2014 at 12:19am*

**Math**

The problem is ; 10x+8-y X= 2 Y=5 Every time I do it I get 23 but my teacher says I'm wrong . where am I wrong ? someone help me please .
*Monday, August 25, 2014 at 11:20pm*

**Math **

1 77/88 - 5 64/88 =
*Monday, August 25, 2014 at 11:09pm*

**math**

In October, a HARDWARE STORE purchased snow shovels for $8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up 15%. In March, the ...
*Monday, August 25, 2014 at 10:21pm*

**math**

I having problems figuring out how to work this problem 6X^2+7/3X^2+1 is the answer 3X+6?
*Monday, August 25, 2014 at 10:00pm*

**Math**

2+22+23+......+29=? A. 2044 B. 1022 C. 1056 D. None of these
*Monday, August 25, 2014 at 9:59pm*

**Math**

1 7/8 - 5 8/11 =
*Monday, August 25, 2014 at 9:43pm*

**Math**

421.5680 / 83.45
*Monday, August 25, 2014 at 9:27pm*

**Math**

x^(log10x)=100 I'm not sure how to do this at all...
*Monday, August 25, 2014 at 9:27pm*

**Math**

I am a number less than 40. One of my factors is 3. The sum of my digits is 12. What number am I?
*Monday, August 25, 2014 at 9:17pm*

**Math**

Emily collected $950 selling Girl Scout cookies all day Saturday. Emily's troop collected 20 times as much as she did. Howmuch did Emily's troop raise?
*Monday, August 25, 2014 at 8:08pm*

**Math**

A game has a box containing four marbles - three red and one green. The player draws one marble at a time without replacement until the green marble is drawn. After that, the game is over. The game ends in four different ways. What is the probability of drawing a green marble ...
*Monday, August 25, 2014 at 8:05pm*

**Math**

I am a number between 20 and 30 one of my factors is 4 the sum of my digits is 10 what number am I ?
*Monday, August 25, 2014 at 8:04pm*

**Calculus-Math**

Find the derivative of 4 sec^7 (πt − 6)?
*Monday, August 25, 2014 at 7:58pm*

**Math**

3y=4x-18 3x=7-y
*Monday, August 25, 2014 at 7:40pm*

**Math**

An item is on sale for $12, which is at a discount of 20% off the original price. What is the original price? How do I do this without a calculator? Thank you !
*Monday, August 25, 2014 at 7:38pm*

**math**

Jackie wants to buy a new CD player. It costs $ 32.95. She has saved $ 26 and has a coupon for 30 % off the price. Does Jackie have enough money to buy the CD player?
*Monday, August 25, 2014 at 7:34pm*

**math**

what is the exponential form of 1000 * 1000
*Monday, August 25, 2014 at 7:30pm*

**5th grade math**

What is the value of n 9*27+2*31-28=n
*Monday, August 25, 2014 at 6:54pm*

**Math **

What is 52.5/0.5 Also 12+16 divided by (3+1)
*Monday, August 25, 2014 at 6:52pm*

**5th grade math**

what is the best estimate for the product of 289 and 7
*Monday, August 25, 2014 at 6:31pm*

**Math**

what is the solution to x + 4 = 12? A. X = 16 B. X = 12 C. X = 8 (MY ANSWER) D. X = 4 What is the value of b is 9 + b = -8 A. b = -17 B. b = -1 C. b = 1 D. b = 17(MY ANSWER) What is the solution to q + (-9) = 12? A. q = -21 B. q = -3 C. q = 3 ( MY ANSWER) D. q = 21 Are my ...
*Monday, August 25, 2014 at 6:01pm*

**math**

kevin has a rabbit,a ferret, a gerbil, and a turtle.he feeds them in a different order each day.in how many different orders can kevin feed his pets?
*Monday, August 25, 2014 at 5:32pm*

**math**

yancey collects plastic banks.he has three different banks:a pig,a cow,and a horse.how many wayscan yancey arrange his banks on a shelf
*Monday, August 25, 2014 at 5:15pm*

**MAth**

need help 5(2x - 10)/2 + 14 = 19 10x - 50/2 = 5x - 25 + 14 =19 5x - 11+11 = 19+11 5x/5 = 30/5 x= 6 Is this correct?
*Monday, August 25, 2014 at 4:44pm*

**discrete math**

A' U B venn diagram. A n (B U C) venn diagram.
*Monday, August 25, 2014 at 4:33pm*

**business math**

The selling price for a speedboat is $25,869.57. What percent of the sale price is the markup if the cost of the speedboat was $11,900? Round to the nearest whole percent. Do not enter the percent symbol in your answer
*Monday, August 25, 2014 at 3:53pm*

**Math**

The sides of a triangle are 6cm, 7cm, and 10cm. Find the length of the longest side of a similar triangle whose shortest side is 12cm
*Monday, August 25, 2014 at 3:29pm*

**Math**

Her dining room is 5 yards by 10 yards rectangle. How much carpeting does she need to cover her entire dining room
*Monday, August 25, 2014 at 3:12pm*

**Math**

Which themometer were used to maesure temperture of the room at midnight and at noon
*Monday, August 25, 2014 at 3:02pm*

**Math**

What is the derivative of 5x^7/97x+9?
*Monday, August 25, 2014 at 2:44pm*

**math**

23. There are two telephone companies provide home phone service in New York City. Company A charges $25 monthly fee and $0.10 for one minute after 30 minutes phone call. Company B charges $20 monthly fee and $0.12 for one minute after 30 minutes phone call. By what minutes, ...
*Monday, August 25, 2014 at 1:13pm*

**check (math)**

56. Evaluate the following expression. (7^8x7^9)^10 This is what I did: 7^80x7^90 = 7^170
*Monday, August 25, 2014 at 12:41pm*

**Math**

2+22+23+......+29=?
*Monday, August 25, 2014 at 12:37pm*

**Math**

isosceles trapezoid with a perimeter of 52 meters; one base is 10 meters greater than the other base; the measure of each leg is 3 less than twice the base of the shorter base
*Monday, August 25, 2014 at 12:25pm*

**math**

simplify the ratio R250:150:100
*Monday, August 25, 2014 at 12:11pm*

**Math**

Arrange from biggest to smallest: 365 ml, 90ml,2l,680ml
*Monday, August 25, 2014 at 10:55am*

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