Thursday

April 24, 2014

April 24, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

Write an equation of a line perpendicular to line AB below in slope-intercept form that passes through the point (7, 6). A (0,1) B (-2,5)
*Wednesday, March 26, 2014 at 10:05pm*

**math**

what is -8 squared +(17 - 9)x 4 + 7
*Wednesday, March 26, 2014 at 9:36pm*

**Math**

Write an equation of a line perpendicular to y=1/2x-5 in slope-intercept form that passes through the point (2, -7).
*Wednesday, March 26, 2014 at 8:46pm*

**7th grade math**

Tower A is about 1450 feet tall. Tower B is about 4/5 as tall. How tall is the B tower?
*Wednesday, March 26, 2014 at 8:00pm*

**6th Grade Math**

A drawer contains 3 blue ribbons, 4 red ribbons, and 3 green ribbons. A ribbon is randomly chosen from the drawer, replaced, and another ribbon is chosen. Find each probability"
*Wednesday, March 26, 2014 at 7:58pm*

**math**

Tessa feeds her dog 3 3/4 cups of dog food per day. If she buys a bag of food that has 165 cups how many days will the bag of dog food last?
*Wednesday, March 26, 2014 at 7:58pm*

**math**

solve for A B=3/8(A-10)
*Wednesday, March 26, 2014 at 7:46pm*

**Math**

solve for y 2y = 18x y - 6 = 2x trying to help with homework and at a loss here.
*Wednesday, March 26, 2014 at 7:45pm*

**math**

Solve for v: C=6u2v
*Wednesday, March 26, 2014 at 7:43pm*

**Math**

If Mike has 8 dimes and 6 pennies in his pocket. If he randomly selected one coin and then a second coin without replacing the first, what is the probability that both coins were dimes?
*Wednesday, March 26, 2014 at 7:41pm*

**Math. Help**

Anna's dad is replacing a table in their house. The table is currently 3 feet wide by 4 feet tall. Her dad wants to add 9 inches to the legs of the table. What is the new perimeter of the table in feet?
*Wednesday, March 26, 2014 at 7:39pm*

**Math**

Use the following four coordinates to determine which one has a distance of 10 units from point C (1, 2). (3, 4) (7, 1O) (6, 7) (8, 9)
*Wednesday, March 26, 2014 at 7:37pm*

**Math**

Order from greastest to least -1 13/14 , -1.9 , -1 9/11, -1.95 show work
*Wednesday, March 26, 2014 at 7:35pm*

**Math**

The length of a table is 3 1/3 inches. The width is 1/5 of length. Find the width and perimeter of table
*Wednesday, March 26, 2014 at 7:34pm*

**Math**

-2 1/5 divided by -3 2/3. Show work also thanks (:
*Wednesday, March 26, 2014 at 7:33pm*

**math**

36/1.5 = ? how to divide this
*Wednesday, March 26, 2014 at 6:56pm*

**Math**

What is the pattern for 2,6,4,12,10,30,28
*Wednesday, March 26, 2014 at 6:33pm*

**Math**

A store has found that 60% of their customers spend more than $75 each visit. What is the probability that the next two customers will spend more than $75.
*Wednesday, March 26, 2014 at 6:15pm*

**math**

There are 50 big cats in the zoo. 2/5 of them are tigers. 1/5 of them are leopards. The rest are lions. How many lions are there in the zoo?
*Wednesday, March 26, 2014 at 6:06pm*

**Math**

solve for y 3x + y = 2 Trying to help out my daughter, if you could show me steps that would be wonderful. Thank You
*Wednesday, March 26, 2014 at 5:57pm*

**Math**

Umm, guys, hi. Lauren says that -3.36 (36 is repeating) is greater than -3 1/3. Do you agree? Explain
*Wednesday, March 26, 2014 at 5:48pm*

**Math**

What is the product of the solutions to the equation: x2+4x=-4 a. 80 b. -80 c. -20 d. 4 (I NEED TO KNOW WHO TO GET THE ANSWER PLEASE)
*Wednesday, March 26, 2014 at 5:46pm*

**math**

one container has 38 gal in it, it fills at 5 gph . the other container has 30 gal in it, it is filling at 7 gph. when will they have the same amount of water in each?
*Wednesday, March 26, 2014 at 5:41pm*

**Math**

Jayce wants to paint her room Duke Blue.Her room is 12 ft long ,12 ft 10inches wide, and 10ft high.If Dylan insists she paint her ceiling white, about how many cans of blue paint will she need to buy to paint the walls.One can covers 120 square feet. Ignore the windows and ...
*Wednesday, March 26, 2014 at 5:34pm*

**3rd grade math**

Brandon bought one more pair of sweatbands than luis. Each pair of sweatbands cost $3.88. He also bought one more bottle of sports drink than luis, each costing $1.75, and a granola bar, costing $0.98. What was the total cost brandon's purchase?
*Wednesday, March 26, 2014 at 5:07pm*

**math**

tim has a det of $872.23. If he pays 40 percent of the debt this month and 50 percent of the remainder next month, how much does tim still owe?
*Wednesday, March 26, 2014 at 5:04pm*

**Math please ASAP**

Line AB contains points A (-1, 3) and B (5, 3). Line AB has a slope that is
*Wednesday, March 26, 2014 at 3:25pm*

**integer Math**

Estimate the value of integer 52 to the nearest whole number
*Wednesday, March 26, 2014 at 3:20pm*

**math**

A stock that sold for $240 per share before a week began had the following gains and losses in share price over the course of that week. Monday ( - 2 3/4 ), Tuesday ( - 3 1/8 ), Wednesday ( + 1 1/8 ), Thursday ( + 5 ), Friday ( - 2 1/4 ). Suppose an investor bought 100 shares ...
*Wednesday, March 26, 2014 at 3:12pm*

**Math**

Solve the problem. Round to the nearest cent. Joan wants to have $250,000 when she retires in 27 years. How much should she invest annually in her annuity to do this if the interest is 7% compounded annually? A) $1861.10 B) $3356.43 C) $2672.15 D) $937.86
*Wednesday, March 26, 2014 at 3:11pm*

**math**

Suppose a movie theater sold 200 adult and student tickets for a showing with the revenue of $980. If the adult tickets are $5.50 and the students tickets are $4, how many of each type of ticket were sold?
*Wednesday, March 26, 2014 at 2:58pm*

**Math**

Could somebody please help me with a few Math questions? 1. Provide an appropriate response. True or False? 100.567 is between 10 and 100. 2. Use an annual percentage rate table to solve the problem. A family purchased a new ski boat for $20,000. The loan agency required a ...
*Wednesday, March 26, 2014 at 2:14pm*

**math**

find the next term in the sequence 6,11,21,36,56,81
*Wednesday, March 26, 2014 at 1:14pm*

**math**

period of x(t)=10 sin(12 pi t)+4 cos(18 pi t)
*Wednesday, March 26, 2014 at 1:05pm*

**math**

a painter is painting the ceiling of a square room. The walls are all 15 ft long. If a gallon of paint covers 45 square feet, how many gallons of paint will be needed to cover the entire ceiling? A. 4 Gallons B. 5 Gallons C. 6 Gallons D. 3 Gallons
*Wednesday, March 26, 2014 at 12:17pm*

**math**

John is looking at a map and it says that 1 inch = 50 miles. John wants to travel to a town that is 7.5 inches away on the map. How many miles must he travel to get there?
*Wednesday, March 26, 2014 at 11:04am*

**Math**

Use a translation rule to describe the translation of triangle ABC that is 8 units to the right and 2 units down.
*Wednesday, March 26, 2014 at 8:53am*

**Math**

Historically, an acre was the amount of land that an ox could plow in one day, which was deemed to be 4,840 square yards. Supposing that an ox could plow 4,840 square yards in a day, how manyyears would it take an ox to plow a square mile?
*Wednesday, March 26, 2014 at 7:09am*

**Math**

The Brock family uses a 12-cup coffee maker, which leaks. For every 6 cup of coffee brewed, 1/12 cup leaks out. Mrs. Brock makes a full pot. If 4 coffee drinkers receive the same amount, how many cups (use a mixed number) will each individual receive?
*Wednesday, March 26, 2014 at 7:07am*

**Math**

Jan is making a 3-tier wedding cake for 300 guests. She will make the cake for $3 per serving with the following specifications: -Each serving is 4 inch.3 -Each tier must be smaller than the tier below it. -Each square tier is 4 in. tall with a side length of 16 in., 14 in., ...
*Wednesday, March 26, 2014 at 7:06am*

**Quick Math Question**

I was working out a problem and reached an answer of 3ln |x|+ (1/x)+ ln |x+1| The final given answer is (1/x) + ln |x^4 +x^3| I see that the (1/x) carried over and I know how the x^3 got there, but I'm confused as to the x^4. Can someone kindly explain this to me?
*Wednesday, March 26, 2014 at 6:23am*

**Math**

At some point in the season, the Unicorns had won 60% of their baseball games. After that point, they won 8 more games and lost 2, to finish the season having won 65% of their games. How many games did the Unicorns play during the season?
*Wednesday, March 26, 2014 at 3:11am*

**math**

63.49 divided by 7
*Wednesday, March 26, 2014 at 1:45am*

**math **

Find the monthly house payments necessary to amorti ze each loan. Then calculate the total payments and the total amount of interest paid : $199,000 at 7.01% for 25 years
*Wednesday, March 26, 2014 at 1:29am*

**Math**

Homing pigeons avoid flying over large bodies of water, preferring to fly around them instead. Assume that a pigeon released from a boat 1 mile from the shore of a lake flies first to point P on the shore and then along the straight edge of the lake to reach its home at L. If ...
*Wednesday, March 26, 2014 at 12:07am*

**Math**

Coach kent brings 3 quarts of sport drink to soccer practice. He gives the same amount of the drink to each of his 16 players. How many ounces of the drink does each player get?
*Tuesday, March 25, 2014 at 10:52pm*

**Math**

Admission to a museum cost $12 for adults and $7 for children. A group of 35 people attending the museum paid a total of $315 in admission fee. Write a system of equations to represent the situation. Let A represent the number of adults admissions and C represent the number of...
*Tuesday, March 25, 2014 at 10:48pm*

**math**

Sally made an initial deposit into an account bearing an interest rate of 7% compounded continuously. How long will it take for Sally's initial deposit to double in value?
*Tuesday, March 25, 2014 at 10:25pm*

**math**

P=347e^.023t, where t is the number of years after 1990. According to the model, in what year will the population reach 1000?
*Tuesday, March 25, 2014 at 10:23pm*

**math**

P=347e^.023t, where t is the number of years after 1990. Use the model to estimate the population in the year 2012.
*Tuesday, March 25, 2014 at 10:21pm*

**math**

Suppose 48,000 is invested at an interest rate of 4.2%, compounded quarterly. What will the account be in 10 years?
*Tuesday, March 25, 2014 at 10:20pm*

**math**

if 10 of the 50 pieces if candy are green, then what percent of the pieces of candy are green?
*Tuesday, March 25, 2014 at 10:11pm*

**math**

Sandra makes a pizza she puts mushrooms on 2/8 of the pizza she adds green peppers to 5/8 of the pizza which topping covers more of the pizza
*Tuesday, March 25, 2014 at 10:00pm*

**Math**

The three interior angles of a triangle are in a 1:3:6 ratio. Find the measure of the largest angle?
*Tuesday, March 25, 2014 at 8:48pm*

**math**

an open-topped box can be made from a rectangular sheet of aluminum, with dimensions 40 cm by 25 cm, by cutting equal-sized squares from the four corners and folding up the sides. Declare your variables and write a function to calculate the volume of a box that can be formed. ...
*Tuesday, March 25, 2014 at 7:59pm*

**math**

Hoe do you do 450 divide14?
*Tuesday, March 25, 2014 at 7:54pm*

**math**

Eric has a two rocks samples. One has a mass of 600 grams and the other has a mass of 1 kilogram. He recorded the total mass as 7 kilogrmaas. Explain what he did wrong? What should be the correct answer in grams?
*Tuesday, March 25, 2014 at 7:33pm*

**math**

the time is 6:10 is the hour hand closer to 6 or 7? why?
*Tuesday, March 25, 2014 at 7:27pm*

**math**

the new highway will be a total of 54 miles long. will the highway be finishe in 8 months
*Tuesday, March 25, 2014 at 7:03pm*

**Math**

Evaluate 3X /4 if X=2
*Tuesday, March 25, 2014 at 5:44pm*

**math**

if one rhombus measures 62 what are the remaining angle
*Tuesday, March 25, 2014 at 5:19pm*

**Science**

Ricco mixed up 500 cc of salt solution. He weighed it and found it's mass to be 585 g. Will his shake up toy work the way he wants it to if he uses this salt solution? Why or why not? Remember, 1 ml= 1 cc show your math
*Tuesday, March 25, 2014 at 5:11pm*

**Chemistry**

What volume in liters will be required to dissolve 60.9 grams of Mg(OH)2? Ksp = 1.8×10-11 After doing the math, i got 1.58e-4, but its not right, so i have no idea what to do now.
*Tuesday, March 25, 2014 at 5:07pm*

**Math**

A 3-foot piece of wood is cut into two equal sections. How long is each section in inches? a. 9 inches b. 18 inches c. 27 inches d. 36 inches
*Tuesday, March 25, 2014 at 5:02pm*

**math**

Harriet spent $4050 on other supplies for her aviary. She spent $326 less on litter than she did on perches, and twice as much on nesting boxes as litter and perches combined. How much did she spend on perches?
*Tuesday, March 25, 2014 at 3:52pm*

**math**

Change decimals to a fraction 0.35
*Tuesday, March 25, 2014 at 3:26pm*

**Math**

Find the radius of a circle so that it's area and circumference have the same value.
*Tuesday, March 25, 2014 at 2:47pm*

**math**

Which type of graph would best display the numbers of each type of vehicle sold by a large dealership during a year? A. bar graph B. circle graph C. line graph D. line plot
*Tuesday, March 25, 2014 at 12:38pm*

**MATH**

you have a pair of newborn hamsters. each pair that is at least one month old produces a new pair every month. at this rate, you will have 178 hamsters at the end of what month? (The math relay officials said the 10th month but I think that it should be the 8th)
*Tuesday, March 25, 2014 at 10:11am*

**Math**

Use the inverse matrix to solve this system of equations: 4x+3y=7.5 7x+9z=14 4y-z=8.3 A) x = -2.125, y = 3.23, and z = 4.555 B) x = 1.661, y = 2.509, and z = 0.404 C) x = 2.509, y = 1.661, and z = -0.404 D) x = 0.260, y = 2.435, and z = 1.375 E) x = 2.435, y = 1.375, and z = 0...
*Tuesday, March 25, 2014 at 10:05am*

**math**

Graph the function f(x)=1/3-x (x≠3)
*Tuesday, March 25, 2014 at 7:32am*

**Convert fraction decimal and percent**

On Friday math test. will missed 5 problems out of 25. If each problem was equally weighted, what was will's grade on the test? A. 20% b. 75% c. 80% d. 85%
*Tuesday, March 25, 2014 at 3:48am*

**math**

So how would you isolate the variable of 3z=5? My mom is trying to help me understand it, so she gave me 15 questions, and this one I am not sure of, thank you.
*Tuesday, March 25, 2014 at 12:55am*

**math**

2 trains leave the station at 325 one going east at 66 miles per hour the second going west at 82 miles per hour they are 111 miles apart what time is it
*Tuesday, March 25, 2014 at 12:17am*

**math**

Sonya spent 2/5 of her money and then had $18 left. How much money did Sonya originally have?
*Monday, March 24, 2014 at 10:20pm*

**math**

CALCULATE if 1/3of the candles are pink 3/8 are yellow and 1/4 is blue remaining 2 are white
*Monday, March 24, 2014 at 9:45pm*

**math**

The deck in Hope's backyard is round. It has 5 posts evenly spaced around the edge to support a trellis. For her birthday party, she wants to connect each post to all the other posts with crepe-paper streamers. How many streamers will she report?
*Monday, March 24, 2014 at 9:31pm*

**Math**

hope's mom baked a cake for hope's birthday. It is in the shape of a rectangle 10 inches long and 6 inches wide. If she starts at one corner and puts a candle every 2 inches, how many candles will fit around the edge of the cake?
*Monday, March 24, 2014 at 9:02pm*

**math**

Carlos invested his savings in two investment funds. The amount he invested in Fund A was $8000 less than the amount he invested in Fund B. Fund A returned a 8% profit and Fund B returned a 4% profit. How much did he invest in Fund B, if the total profit from the two funds ...
*Monday, March 24, 2014 at 7:45pm*

**math**

mr andropolis wants to leave the waitress a 12% tip. estimate the tip he should leave if the family's bill is $32.46
*Monday, March 24, 2014 at 7:27pm*

**Math-Statistics**

Assume you build a Candy castle for which you buy a bag of gummy bears, a block of chocolate and a bag of nuts. The weight of the three ingredients is a random variable (X1, X2 and X3) with mean weights μ1 = 200 gram, μ2 = 400 gram and μ3 = 150 gram. The bags ...
*Monday, March 24, 2014 at 7:26pm*

**Math-Statistics**

The chance that a college student has a job offer before graduation is 70%. If I sample 200 graduates… (use continuity correction) a) what is the chance more than 130 of them have a job offer? b) what is the chance less than 133 of them have a job offer? c) what is the ...
*Monday, March 24, 2014 at 7:25pm*

**Math-Statistics**

5) You know that you will inherit 20% of your uncle John’s wealth, 30% of your aunt Becky’s wealth and 50% of your parent’s wealth. Since they are not dead yet, their respective wealth is a RV and all we know is that their wealth at death is ~N and independent ...
*Monday, March 24, 2014 at 7:25pm*

**Math-Statistics**

Assume your expected lifetime income is $1.5 million and the standard deviation is $250,000. a) What is the chance that you will earn more than $1.1 million during your lifetime? b) What is the chance that you will earn less than $2 million during your lifetime? c) What is the...
*Monday, March 24, 2014 at 7:23pm*

**math**

Layne sends an email to 7 people and those 7 people send the email to 7 more people, and so on. Write an expression to show the number of people who will receive the email after the fifth round.
*Monday, March 24, 2014 at 6:55pm*

**math**

Mr. Gonzalez's sixth-grade class is putting on a play. He reserved the first 6 rows of the auditorium for family members and friends of the 24 students in his class. If each row contains 17 seats and each student can invite the same number of guests, how many guests can ...
*Monday, March 24, 2014 at 6:48pm*

**math**

If an airplane travels at 300 mph with no air resistance, and it travels directly south with a wind of 50 mph east, how fast is the plane going?
*Monday, March 24, 2014 at 6:45pm*

**math**

3/4 as decimal
*Monday, March 24, 2014 at 6:21pm*

**4th grade math**

What is 1. 2/3 + 3/6 = 2. 3 1/10 + 17/5 = 3. 3 2/6 - 1 5/6 =
*Monday, March 24, 2014 at 6:14pm*

**4th grade math**

Suppose 8 kids are running a mile. 3/4 of the kids ran the mile in less than 10 minutes. How many kids finished the mile in less than 10 minutes.
*Monday, March 24, 2014 at 6:13pm*

**math**

0.7 as a fraction
*Monday, March 24, 2014 at 6:08pm*

**math**

0.6 as a fraction
*Monday, March 24, 2014 at 6:07pm*

**math**

0.625 as a percent
*Monday, March 24, 2014 at 6:07pm*

**Math**

If your heart beats 24 beats inn10 sec,how many beats will it beat in 3 mins?
*Monday, March 24, 2014 at 5:49pm*

**math**

0.6 as a percent
*Monday, March 24, 2014 at 5:48pm*

**math**

1/2 as a decimal
*Monday, March 24, 2014 at 5:47pm*

**math**

2/5 as a decimal
*Monday, March 24, 2014 at 5:47pm*

**math**

0.25 as a fraction
*Monday, March 24, 2014 at 5:34pm*

**6th gr. math**

0.2 as a percent?
*Monday, March 24, 2014 at 5:19pm*

**Math**

Given the following function, choose the graph with the two possible angles with the domain 0 < or = to theta < or = to 360 degrees. Sec(theta)= -13/5
*Monday, March 24, 2014 at 5:16pm*

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