Friday

December 19, 2014

December 19, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

Luka is eating crackers. Each serving has 1.6 grams of fat. She ate 0.75 serving of crackers at lunch. She is now eating 1.5 servings of crackers as a snack. How many grams of fat did Luka eat all together? Explain how you solved the problem
*Thursday, November 6, 2014 at 5:25pm*

**Math HELP!**

Find the unit rate. In 10 months, 62.6 gallons were used. A. 0.16 gallon/month B. 10 gallons/month C. 6.26 gallons/month D. 626 gallons/month Is the answer C?
*Thursday, November 6, 2014 at 5:19pm*

**Math HELP!**

Find the unit rate. Rounf to the nearest tenth, if necassary. 344 miles is 11 hours A. 344 miles/hour B. 3,784 miles/hour C. 0.03 mile/hour D. 31.27 miles/hour Is the answer a?
*Thursday, November 6, 2014 at 5:08pm*

**Math HELP!**

The cost of your favorite lemonade is $3.84 for 3 gallons. Write this as a unit rate. A. $3.84/1 gallon B. $1.28/1 gallon C. 1 gallon/$1.28 D. $1.45/1 gallon Is the answer b?
*Thursday, November 6, 2014 at 5:01pm*

**Math/Statistics**

The number of megapixels in a digital camera is one of the most important factors in determining picture quality. But, do digital cameras with more megapixels cost more? The following data show the number of megapixels and the price ($) for 10 digital cameras (Consumer Reports...
*Thursday, November 6, 2014 at 5:01pm*

**Math Help**

Hi! I'm really lost on how to do this. Does anyone know how to solve this? Thanks! :) Condesne the expression to the logarithm of a single quanity. 4(lnz+ln(z+5)]-2ln(z-5)
*Thursday, November 6, 2014 at 5:01pm*

**Math Please help**

I do not have any Idea how to set this up. Please walk me through the steps. A.) If a customer buys x copies then he or she pays $500 sqrt x. it cost the company $10,000 to develop the program and $2 to manufacture each copy. If a single customer were to buy all the copies of ...
*Thursday, November 6, 2014 at 4:59pm*

**Math HELP!**

A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of girls to total students? A. 12:15 B. 15:12 C. 27:12 D. 12:27 Is the answer A?
*Thursday, November 6, 2014 at 4:50pm*

**Math HELP!**

Mac's farm has a total of 18 horses and 27 cows. What is the ratio of horses to cows in simplest form? A. 6/9 B. 18/27 C. 2/3 D. 3/2 Is the answer C? Thank you
*Thursday, November 6, 2014 at 4:42pm*

**math**

Kelly has 4 times as many songs on her music player as Lou. Tiffany has 6 times as many songs on her music player as Lou. Altogether, they have 682 songs on their music players. How many songs does Kelly have. Please teach me the steps on how to do it I`m having trouble on ...
*Thursday, November 6, 2014 at 4:36pm*

**Math **

How many square units are in the area of the triangle whose vertices are the x and y intercepts of the cuure y=(x-3)^2(x+2)?
*Thursday, November 6, 2014 at 3:44pm*

**Math**

Use the properties of logarithms to rewrite and simplify the logarithmic expression. 1.) log(9/300) 2.) log2(4^2 x 3^4)
*Thursday, November 6, 2014 at 3:28pm*

**Math**

A bungee jumper falls from a bridge 300 feet above ground. Her height above ground after t seconds is given by the equation h=16t^2+300 where h is the height of the jumper in feet and t is the time in seconds after she jumps. Approximately how long will it take for the bungee ...
*Thursday, November 6, 2014 at 3:19pm*

**2 Math Questions**

1) What do you do to check whether a number is rational or irrational? Use an example of a rational and an irrational number. 2) How does finding the square root [√] of a number compare to finding the cube root [^3√] of a number? Use the number 64 in your ...
*Thursday, November 6, 2014 at 3:18pm*

**Math**

Joy knits a square blanket that has an area of 1,500 square inches. What is the approximate length of each side of the blanket? A. 16 B. 27 C. 39 D. 42 _____________________________________ As an estimate for √47 is between ___? A. 4 and 5 B. 5 and 6 C. 6 and 7 D. 7 and ...
*Thursday, November 6, 2014 at 3:09pm*

**Math please help**

I am so confused on how to set this up then solve please help. For a rectangle with area 100 to have the smallest perimeter what divisions should it have? Would I use 2L+2W=P, A=xy, or what. I know it is probably something really simple and I am just not seeing it.
*Thursday, November 6, 2014 at 3:02pm*

**math**

if the difference in the degree measure of an interior and exterior angle of a regular polygon is 100 degree,how many sides doesthe poygon have??
*Thursday, November 6, 2014 at 2:14pm*

**Math**

Larry purchased a ski lodge in Telluride for $850,000. His bank is willing to finance 70% of the purchase price. As part of the mortgage closing costs, Larry had to pay 4% discount points. How much did this amount to?
*Thursday, November 6, 2014 at 1:05pm*

**math**

Gina wants to use a board that is 8 feet long to make a ramp. She wants the ramp to be 6 feet wide. Her design is shown below. Which is closest to h, the height in feet Gina should use for the ramp according to her design? a. 10.0 b. 5.3 c. 2.0 d. 1.3
*Thursday, November 6, 2014 at 12:42pm*

**Math**

Use the properties of logarithms to rewrite and simplify the logarithmic expression. 1.) log(9/300) 2.) log2(4^2 x 3^4)
*Thursday, November 6, 2014 at 12:38pm*

**math**

tickets to a play cost 3 dollars a child and 5 for adults. theater wants at least 1500 in sales. find intercept and describe what each one represents?
*Thursday, November 6, 2014 at 11:31am*

**Math**

Use the simplex meth to solve the linear programming problem Maximize z = 8x1 + 2x2 Subject to: 4x1 + 3x2 < 11 X1 + 4x2 < 7 With x1 > 0, x2> 0
*Thursday, November 6, 2014 at 11:23am*

**math**

which number is a perfect cube a.7 b. 25 c. 66<---- d. 27
*Thursday, November 6, 2014 at 11:08am*

**Math**

Polluted water flows into a pond. The concentration of pollutant, c, in the pond at time, t, minutes is modeled by the equation c(t) = 9 - 90 000 (1/ 10 000 + 3t) a) When will the concentration of pollutant in the pound reach 6kg/m^3?
*Thursday, November 6, 2014 at 10:47am*

**Math**

I have a peice of lumber that is 18 feet long can 18 prices of lumber make 5 shelves
*Thursday, November 6, 2014 at 9:51am*

**Math**

Ursula wrote the sum 5.815 + 6.021 as a sum of two mixed numbers. A. What sum did she write? B. Compare the sum of the mixed numbers to the sum of the decimals.
*Thursday, November 6, 2014 at 5:54am*

**math**

A carpenter who is installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses four shims to fill a gap that is 1.2 centimeters wide. Three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.09 centimeter wide. What is the width of the...
*Thursday, November 6, 2014 at 5:47am*

**math**

The temperature x in °f is related to the temperature in °c by the relation c(x) = 5/9 (x-32).What is the slope of graph in (b)?
*Thursday, November 6, 2014 at 4:48am*

**Math**

x^2+6x+4 Complete the square Find the turning point of the equation
*Thursday, November 6, 2014 at 2:22am*

**math**

A repairman purchased several furnace-blower motors for a total cost of $150. If his cost per motor had been $5 less, he could have purchased 1 additional motor. How many motors did he buy at the regular rate?
*Thursday, November 6, 2014 at 1:33am*

**math**

If a number is added to the numerator of 5/6 and twice as much is added to the denominator, the result is 3/5 Find the number?
*Thursday, November 6, 2014 at 1:23am*

**math**

A dealer bought some radios for a total of $1,200. She gave away 6 radios as gifts, sold each of the rest for $10 more than she paid for each radio, and broke even. How many radios did she buy?
*Thursday, November 6, 2014 at 1:15am*

**math**

A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 14 days and the other pipe can fill it in 22 days. However, if no sewage is added, waste removal will empty the pool in 35 days. How long will it take the two inlet pipes to fill an empty pool? answer
*Wednesday, November 5, 2014 at 11:53pm*

**math**

Carl shades a row in the multiplication table the product in the row are all even the ones digits in the products repeat 0,4,8,2,6 what row does carl shades
*Wednesday, November 5, 2014 at 11:43pm*

**Math**

You are measuring walnuts for banana walnut oatmeal and a spinach and walnut salad. You need 3/8 cup of walnuts for the oatmeal and 3/4 cup of walnuts for the salad. You have a 1/4-cup scoop. Describe two different ways to find how many scoops of walnuts you will need. PLEASE ...
*Wednesday, November 5, 2014 at 10:45pm*

**please help, math question**

A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12.5.
*Wednesday, November 5, 2014 at 10:20pm*

**Math**

An ostrich. An run at a rate of 50 miles every 60 minutes. At this rate how long will it take an ostrich 15 miles?
*Wednesday, November 5, 2014 at 9:45pm*

**Math **

i am thinking a number the number in the tens is less than the number in ones.
*Wednesday, November 5, 2014 at 9:31pm*

**Math**

Find the payment necessary to amortize a 8% loan of $1700 compounded quarterly, with 11 quarterly payments?
*Wednesday, November 5, 2014 at 9:21pm*

**Math**

A jet flies at an altitude of 52,800 feet. What is the height of the jet in miles? I need help with this problem please
*Wednesday, November 5, 2014 at 9:20pm*

**Math**

Carl has 5/6 yard long, 1/4 yard long, and 2/3 yard long of cable wire. After Carl used 1 yard how much cable wire would he have?
*Wednesday, November 5, 2014 at 9:20pm*

**Six Grade Math**

Mary makes 2 gallons of punch for her party. How many cups of punch did she make? Is 32 cups the answer?
*Wednesday, November 5, 2014 at 9:10pm*

**math**

Evan told his class that the people in his family have 14 legs altogether.Quinton said that there must be 7 people in Evan's family.Is Quinton correct?Explain.
*Wednesday, November 5, 2014 at 9:07pm*

**Math HELP!**

Which persuasive technique is used in the following senence? Four out of five people prefer cantaloupe to honeydew melon. A. Repetition B. Appeals to reason C. Appeals to emotion D. Appeals to authority Is the answer b?
*Wednesday, November 5, 2014 at 9:05pm*

**math **

-5g-6 for g= -2
*Wednesday, November 5, 2014 at 8:58pm*

**math**

a picture framer has a board 10 1/12 feet long. the framer notices that 2 3/8 feet of the board is scratched and cannot be used. the rest if the board will be used to make small picture frames. each picture frame needs 1 2/3 feet of a board. at most, how many complete picture ...
*Wednesday, November 5, 2014 at 8:57pm*

**math**

trina works after school and on weekends. she always works three days each week. this week she worked 2 3/4 hours on monday, 3 3/5 hours on friday and 5 1/2 hours on saturday. next week she plans to work the same number of hours as this week, but will work for the same number ...
*Wednesday, November 5, 2014 at 8:50pm*

**Math**

y-(-1)=1/2(x-2)
*Wednesday, November 5, 2014 at 8:42pm*

**Math**

x+3y=9 Solve for y y=3?
*Wednesday, November 5, 2014 at 8:41pm*

**Math**

5x-2y=0 Solve for y
*Wednesday, November 5, 2014 at 8:40pm*

**Math**

3y=-15 Solve for y=mx+b form y=-5?? How will I put that in y=mx+b
*Wednesday, November 5, 2014 at 8:38pm*

**math? Ms. Sue please help!**

Is this a function? Why or why not? x y 0 1 1 2 2 3 3 3
*Wednesday, November 5, 2014 at 8:35pm*

**Math help? It's really quick!! :D**

Is this a function? Why or why not? x y 0 1 1 2 2 3 3 3
*Wednesday, November 5, 2014 at 8:30pm*

**math**

a tub takes 4 minutes to fill and holds 28 gallons of water. At this rate, how long would it take to fill a bathtub that held 63 gallons of water?
*Wednesday, November 5, 2014 at 8:30pm*

**Math**

Steve plants ten trees every three minutes. If he continues planting at the same rate, how long will it take him to plant 2500 trees? Express your answer as a decimal in terms of hours.
*Wednesday, November 5, 2014 at 8:23pm*

**math**

A car travel 300 miles on 15 gallons of gas, what is the unit rate?
*Wednesday, November 5, 2014 at 8:13pm*

**math**

We are two integer brothers apart by 7 on the number line.if you take 5 times of me and add 2 times my brother you'll get 42. Can you find my value? I believe there are two answer. ... first answer is 5x + 2(x+7)=42 therefore x=4 and 5(8)+2(1)=42 Both answers can be 4 & ...
*Wednesday, November 5, 2014 at 8:10pm*

**Math**

Create a scenario in which you must use linear functions to solve.
*Wednesday, November 5, 2014 at 7:56pm*

**Math HELP!**

Write a translation rule that maps point D (7,-3) onto point D' (2,5) Explain your answer I have no idea how to do this can someone please help me.
*Wednesday, November 5, 2014 at 7:49pm*

**Math**

Sara has to buy two tops from her pocket money. She can choose two colors from pink, red, white, and black. How many different color combinations does she can choose? a. 9 b. 6 c. 2 d. 4
*Wednesday, November 5, 2014 at 7:47pm*

**Math Help**

Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... Is the answer C? I think that C is the answer because, A,B, and D are non-repeating decimals Rational numbers are supposed to...
*Wednesday, November 5, 2014 at 7:36pm*

**Math**

Sara has to buy two tops from her pocket money. She can choose two colors from pink, red, white, and black. How many different color combinations does she can choose?
*Wednesday, November 5, 2014 at 7:28pm*

**Math, please help**

A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12...
*Wednesday, November 5, 2014 at 7:00pm*

**Math**

Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the length, then find the...
*Wednesday, November 5, 2014 at 6:54pm*

**math Help!!!!!!**

Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... Is the answer C?
*Wednesday, November 5, 2014 at 6:45pm*

**math**

Mikhail used 220 inches of wire to make this figure. this figure is made up two identical triangles,a 15 inch by 12 inch rectangle and a square of side 19 inches.Whatis the length of one side of each triangle if allthe sides of the triangles are equal in length.
*Wednesday, November 5, 2014 at 6:37pm*

**math**

jasmine mixes 1250 milliliters of syrup with twice as much water to make lemonade. she then pours the lemonade equally into 15 glasses.How much lemonade does each glass contain.
*Wednesday, November 5, 2014 at 6:31pm*

**Math**

Carson drives to school the same way each day, and there are two independent traffic lights on his trip to school. He knows that there is a 30% chance that he will have to stop at the first light and an 80% chance that he will have to stop at the second light. What is the ...
*Wednesday, November 5, 2014 at 6:28pm*

**Math**

A gardener grows roses, tulips, and sunflowers in an 18-acre public garden. This year, she wants to plant twice as many acres of sunflowers as acres of tulips. She also wants wants to plant 6 more acres of roses than of sunflowers. How many acres of each flower should the ...
*Wednesday, November 5, 2014 at 6:28pm*

**math**

what is equal to 3.7
*Wednesday, November 5, 2014 at 6:26pm*

**math**

At a school fair, a fifth-grade class sold 25 liters of orange juice. The orange juice was sold in cups containing 200 milliliters and 300 milliliters. An equal number of cups containing 200 milliliters and 300 milliliters were sold. How many cups of orange juice did the class...
*Wednesday, November 5, 2014 at 6:22pm*

**Help please Math**

is a(bc)= ( ab) (ac)
*Wednesday, November 5, 2014 at 6:15pm*

**Math HELP!**

Which of the images above represents a proof of the Pthagorean Theorem? Explain your choice, and them explain how the figure proves the Phythagoream Theorem. Figure A The hypotenuse of the right triangle is 64 units^2 One leg is 36 units^2 The bottom leg is 9 units^2 Figure B ...
*Wednesday, November 5, 2014 at 6:13pm*

**Math HELP!**

Ted determined that the length of the diagonal of his square-shaped lawn was square foot 83 feet. Which is the closest to the length in feet of the diagonal of Ted's lawn? A. 8 B. 9 C. 41 D. 166 Is the answer B? Thank you
*Wednesday, November 5, 2014 at 6:13pm*

**math**

Beth and Lewis buy the same amount of fish pellets. If Beth feeds her goldfish 14 fish pellets each day, a container of pellets will last 20 days. If Lewis feeds his goldfish 8 fish pellets each day, how many more days will the container of pellets last Lewis' goldfish?
*Wednesday, November 5, 2014 at 6:10pm*

**Math HELP!**

Find the length of the hypotenuse of a right triangle with legs of 12 ft and 16 ft. A. 11 ft B. 18 ft C. 20 ft D. 28 ft Is the answer C? Thank you
*Wednesday, November 5, 2014 at 6:07pm*

**Math**

Joan picked 9 pounds of strawberries in one hour. How long does she take to pick 72 pounds of strawberries?
*Wednesday, November 5, 2014 at 6:04pm*

**Business Math**

I'm wondering if I got this question right. A car salesman receives a commission of 10% of the selling price of a car. Find the commission the salesperson earns for selling a car for $12,300. The answer I got was $12,3000.
*Wednesday, November 5, 2014 at 6:04pm*

**Math**

Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the length, then find the...
*Wednesday, November 5, 2014 at 6:03pm*

**Math HELP!**

The length of the hypotenuse of a right triangle is 15 ft. The length of one leg is 9 ft. Find the length of the other leg. A. 6 ft. B. 21 ft. C. 12 ft. D. 18 ft. Is the answer C? Thank you
*Wednesday, November 5, 2014 at 6:02pm*

**Math HELP!**

Sylvia made a poster shaped like the triangle shown below. The hypotenuse is 26in. one like is is 24 in. and the bottom leg is blank. What is the length of the the third side of the triangle? A. 10 in. B. 12 in. C. 14 in. D. 16 in. Is the answer D? Thank you
*Wednesday, November 5, 2014 at 5:51pm*

**Math **

At the water park, Beth and Amy decided to race each other down a waterslide. Amy won by .25 seconds. If Beth's time was exactly 7.8 seconds, how long did it take for Amy to down the slide?
*Wednesday, November 5, 2014 at 5:49pm*

**Math HELP!**

Estimate the value of square root 60 to the nearest integer. A. 7 B. 8 C. 9 D. 10 Is the answer B? Thanks
*Wednesday, November 5, 2014 at 5:45pm*

**math**

360/4 = c
*Wednesday, November 5, 2014 at 5:35pm*

**math**

what does rose mean/fell
*Wednesday, November 5, 2014 at 5:35pm*

**Math **

Is this the same a(bc)=(ab)(ac)
*Wednesday, November 5, 2014 at 5:27pm*

**Math**

Whats 9+10?
*Wednesday, November 5, 2014 at 5:22pm*

**math**

Two numbers have a sum of 32. If one of the numbers is - 36, what is the other number?
*Wednesday, November 5, 2014 at 5:15pm*

**Math Help**

Which of the images above represents a proof of the Pthagorean Theorem? Explain your choice, and them explain how the figure proves the Phythagoream Theorem. Figure A The hypotenuse of the right triangle is 64 units^2 One leg is 36 units^2 The bottom leg is 9 units^2 Figure B ...
*Wednesday, November 5, 2014 at 4:49pm*

**Math Help**

Which of the images above represents a proof of the Pthagorean Theorem? Explain your choice, and them explain how the figure proves the Phythagoream Theorem. Figure A The hypotenuse of the right triangle is 64 units^2 One leg is 36 units^2 The bottom leg is 9 units^2 Figure B ...
*Wednesday, November 5, 2014 at 4:31pm*

**math**

an average sized dog weighs about A. 15 grams B. 50 grams C. 5,000 grams D. 15,00 grams I don't know the answer, please help
*Wednesday, November 5, 2014 at 4:26pm*

**math**

Wanda is shopping for a pet carrier for her cats one small Carrie I can hold 240 ounces her cat weighs 12 pounds can the carrier hold the cat
*Wednesday, November 5, 2014 at 4:23pm*

**Math**

Chris has a square garden with an area of 38.a m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the length, then find the...
*Wednesday, November 5, 2014 at 4:17pm*

**Math**

Angela and Doreen each want to by the same comb. Angela still needs 58cents to by the comb and Doreen still needs6cents. If they were to combine their money, they still do not have enough. What is the most the comb could cost?
*Wednesday, November 5, 2014 at 4:02pm*

**Math Help**

Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are the same, what is the length of each side of the box. My answer Square root of 216=14^2=196 The length of each side of the box is 14 iches. Am I correct?
*Wednesday, November 5, 2014 at 4:00pm*

**Math**

Jill and Chad grew sunflowers in each of their gardens. The tallest sunflower in Jill's garden was 360cm. The tallest sunflower in Chad's garden was 4 meters. Whose sunflower was taller? Prove your answer.
*Wednesday, November 5, 2014 at 3:57pm*

**Math Help**

Triangle ABC has coordinaes A(1,4); B(3,-2); and C(4,2). Find the coordinates of the image A'B'C' after a reflection over the x-axis. My answer A'=(1,-4) B'=(3,2) C'= ( 4,-2) Am I correct? Thank you.
*Wednesday, November 5, 2014 at 3:44pm*

**Math**

A rectangle is to have a perimeter of 18m. the graph below shows the relationship between the area of the rectangle and its width. What is the width of the rectangle with the largest area?
*Wednesday, November 5, 2014 at 3:27pm*

**math Help!!!!!!**

Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... C?
*Wednesday, November 5, 2014 at 3:11pm*

**Math**

Hey People!! I need the answers to these questions really bad!!! OK so here we go.... Which side lengths form a triangle that is similar to triangle ABC? 30, 21,45 20, 14, 28 40,30,60 17,20,25 Find the missing length for the pair of similar figures. 1.125m 4.5m 7m 16m Find the...
*Wednesday, November 5, 2014 at 3:07pm*

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