Monday

November 30, 2015
**Math**

A researcher wants to estimate the mean blood cholesterol level of young men ages 15-25 with a 97.59% confidence interval. The blood cholesterol level of young men follows a Normal distribution with standard deviation σ = 15 mg/dl. How large a sample would the researcher ...
*Tuesday, October 20, 2015 by Princess*

**Uhikty**

Math The GCF of two numbers is 5. The LCM is 60. One of the numbers is 20 what is the other number?
*Tuesday, October 20, 2015 by Reny*

**Math**

Simplify 3^2 x 5^-3 x 2 Divided by 2^-8 x 3^5 So confused!!
*Tuesday, October 20, 2015 by Taylor *

**math**

john has 24 baseball cards. chard has 13 more cards than john. draw a comparison problem to illustrate how to solve the problem, then slove
*Tuesday, October 20, 2015 by john*

**Math**

I don't get how to solve this problem!help 3x(2x^3y) ^6
*Tuesday, October 20, 2015 by Emily*

**Math**

Sandy can jog 3 2/5 in 5/6 hour. Find her average speed in miles per hour.
*Tuesday, October 20, 2015 by Deja*

**Math**

The student council sold refreshment at cost. A case of 24 cans of the fruit punch cost $7.68. Each can fills 1 cup of punch. A box of 48 cups cost $1.44. How much did the council charge for a cup of fruit punch?
*Tuesday, October 20, 2015 by Sandy*

**MATH**

Debbie has two pieces of rope one 20ft.long the other 14ft. Long for a project,she needs to cut them up to produce many pieces of rope that are all of the same length with no rope left over.what is the greatest length in ft. That she can make?
*Tuesday, October 20, 2015 by Stennis*

**Math Pre-Algebra**

How would you solve this problem? (s-4/9)(-2/3)=-4/5
*Tuesday, October 20, 2015 by Angelina*

**math**

If a sweater is 30$ and is on sale for 60% off what was original price
*Tuesday, October 20, 2015 by Anonymous*

**Math**

3x+3(x-1)<-18
*Tuesday, October 20, 2015 by John*

**math**

$112 in 8 hours
*Tuesday, October 20, 2015 by Anonymous*

**math**

What is 26cm:4m ratio in simplest form?
*Tuesday, October 20, 2015 by Nick*

**Math**

How would you solve this problem? (s-4/9)(-2/3)=-4/5
*Tuesday, October 20, 2015 by Angelina*

**Math**

Nick made an array that has 10 counters.Draw 4 arrays that he might have made.
*Tuesday, October 20, 2015 by Rich*

**Math**

I do not know how to do this problem can someone help me please. Thank you. Determine if the given ordered triple below is a solution. (3, 3, -5) x + 9y = 30 2x - 8y = -18 5y + 2z = 5
*Tuesday, October 20, 2015 by Erica*

**Math**

What is the GCF(greatest common factor) of 9 and 25
*Tuesday, October 20, 2015 by Absha *

**Math**

y=2x-4 6x-12=3y
*Tuesday, October 20, 2015 by Erica*

** math**

4=4*6-2+3 Where should I put the grouping symbols to make this true??
*Tuesday, October 20, 2015 by Aidan*

**Math**

How many numbers can be formed by multiplying some or all of the numbers 2,3,4,5,6,7,8? The answer is 48 but I don't know how to get there?
*Tuesday, October 20, 2015 by Jon*

**Math 142 (calculus)**

Determine d^2y/dx^2 for y=(5x^5+7)^4
*Tuesday, October 20, 2015 by Matt*

**math**

How do i divide 6 by 2/7
*Tuesday, October 20, 2015 by Cam*

**Math**

Socks are on sale 4 Pairs for $5. How much would you pay for 8 Pairs of socks?
*Tuesday, October 20, 2015 by Andrea*

**Math**

Three fourths of college students use the internet more than the library. Nine hundredths use the library more. How many times more students use the internet?
*Tuesday, October 20, 2015 by Amaru*

**math**

Mom and I are having a difference of opinion on this question, can you please help. what is the distance between the two numbers on the number line. -7/4 and 3/8 are the two numbers. I made -7/4 into -14/8 then did -14/8 -3/8 next -14/8 + -3/8 =-17/8= - 2 1/8 The answer ...
*Tuesday, October 20, 2015 by sara7*

**math**

the 6:00 a.m. temperatures for four consecutive days in the town of lincon were -12.1 c, -7.8 c, -14.3 c, and -7.2 c. what was the average 6:00 a.m. temperature for the four days?
*Tuesday, October 20, 2015 by Elizabeth*

**math**

k+1,2k-1,3k+1 are three consecutive terms of a geometric progression, find the possible values of the common ratio
*Tuesday, October 20, 2015 by charity*

**math**

one bottle of shampoo costs $6 for 8 ounces.A second bottle costs $4 for 5 ounces of shampoo.Which has the lower unit rate?How much lower?
*Tuesday, October 20, 2015 by jaden*

**Math**

Dominick is incharge of ordering supplies for his hamburger stand, Burger buns come in packs of 12 and patties come in packs of 20, he needs the same amount of both, what is the least number of each that he can order? please help! replys/answers are appreciated!!
*Tuesday, October 20, 2015 by Kaya*

**Math**

P(n,3)=5! Solve for n?? Help, please! I did n!/(n-3)!=5! n(n-1)(n-2)(n-3)!/(n-3)!=5! cancelled out (n-3)! was left with n(n-1)(n-2)=5! n^2-n(n-2)=5! n^3-n^2=5! n^3-n^2-120 What do i do???
*Tuesday, October 20, 2015 by susy*

**math**

if k+1,2k-1,3k+1 are three consecutive terms of a geometric progression,find the possible values of the common ratio
*Tuesday, October 20, 2015 by charity*

**math**

What types of problems can be solve using the gcf?? What types of problems can be solve using the least common multiple ??
*Tuesday, October 20, 2015 by Jocelyn*

**Math**

Hailey has bottles that hold 678 pennies each. About how many pennies does she have if she has 6 bottles filled with pennies?
*Tuesday, October 20, 2015 by Doniyor *

**Math**

Marco ran from his house 2.67 miles to a country park. He then ran the 1.5 mile across the loop at the park and back home. How many miles did he run altogther?
*Tuesday, October 20, 2015 by Amy*

**MATH **

2.8x=-9.24 12.04 -0.030 -3.3 -12.04
*Tuesday, October 20, 2015 by DEEZ GOT HEE*

**math**

Please let me know if I figured this out correctly. Thank you! -10 2/7 divided by (-4 4/11) -72/7 x -11/48 = 99/42 = 2 15/42
*Tuesday, October 20, 2015 by ErinN*

**MATH **

I NEED HELP -5g - 6 for g= -2 4 16 10 -13 write an algebraic expression for the sum of 3 coins and c coins c+3 c/3 3c c-3 what value of x is a solution to the equation x-2=16 14 18 21 12 z/-12=-5 7 -60 -17 60 estimate the solition of the equation x-8.1=5.3 to the nearest whole...
*Tuesday, October 20, 2015 by HELP *

**Math**

The ratio of games the Falcons won to the games they lost for the 2013 football season was 7:5. What is the ratio of games won to the to the total number of games played? What kind of ratio did you describe?
*Tuesday, October 20, 2015 by Amy*

**matH**

-5g - 6 for g= -2 4 16 10 -13 write an algebraic expression for the sum of 3 coins and c coins c+3 c/3 3c c-3 what value of x is a solution to the equation x-2=16 14 18 21 12 z/-12=-5 7 -60 -17 60 estimate the solition of the equation x-8.1=5.3 to the nearest whole number 13 ...
*Tuesday, October 20, 2015 by LOL*

**Math**

How would you write cos(tan^-1u) as an algebraic expression in u? I know the answer, and I've seen tutorial on how to do it using pathagorus, but how would you do this using identities?
*Tuesday, October 20, 2015 by Bri*

**Math**

a 14.5 gas tank is 3/4 full. How many gallons will it take to fill? Please help me set this up. Thanks!!!
*Tuesday, October 20, 2015 by Kate*

**math**

the sum of 3 less than 5 times a number increased by 10 is 24.what is the number?
*Tuesday, October 20, 2015 by erod*

**MATh**

-5g - 6 for g= -2 4 16 10 -13 write an algebraic expression for the sum of 3 coins and c coins c+3 c/3 3c c-3 what value of x is a solution to the equation x-2=16 14 18 21 12 z/-12=-5 7 -60 -17 60 estimate the solition of the equation x-8.1=5.3 to the nearest whole number 13 ...
*Tuesday, October 20, 2015 by DEEZ GOT HEE*

**MaTh**

-5g - 6 for g= -2 4 16 10 -13 write an algebraic expression for the sum of 3 coins and c coins c+3 c/3 3c c-3 what value of x is a solution to the equation x-2=16 14 18 21 12 z/-12=-5 7 -60 -17 60 estimate the solition of the equation x-8.1=5.3 to the nearest whole number 13 ...
*Tuesday, October 20, 2015 by AABBCC*

**MATH**

1/2 x -1/3 -1 1/6 -2/3** -3/8 -1/6** Can't choose between B and D
*Tuesday, October 20, 2015 by Shalee ^~^*

**Math**

Please help me with my midterm review my teacher was out sick today and idk how much longer she will be but my midterms Thursday. She only helps people who she has seen done there midterm review and gotten over half of it right so can any of you please help me. Write the first...
*Tuesday, October 20, 2015 by Mark*

**Math -real numbers **

Which statement is false? A) the number zero is a rational number. B)some irrational numbers are also rational numbers. C)Every irrational number is a real number. D) every integer is a rational number These questions get me every time:( I think it is D but I'm not sure.
*Tuesday, October 20, 2015 by Avery*

**Math**

How many square tiles with sides 1ft long on each edge would be needed to cover the floor of an 8 by 13ft room? Work Multiply 13ft by 8ft?
*Tuesday, October 20, 2015 by Need help desperately *

**Math**

How many square tiles with sides 1ft long on each edge would be needed to cover the floor of an 8 by 13ft room? Work Multiply 13ft by 8ft?
*Tuesday, October 20, 2015 by Anonymous*

**Math**

Can someone please help/show me how to Graph linear equations?? Directions~ Graph the following linear equations by plugging in values for x, solving for y, and keeping track of your x- and y-values in a table. You should determine at least three points on the line before you ...
*Tuesday, October 20, 2015 by Abby *

**Math Help!**

An estimate for ^3 is A. 1 B. 1.2 C. 1.7 D. 2 How do I find the answer? Help please?
*Tuesday, October 20, 2015 by Amber*

**math**

Your state charges 5% sales tax on product on nonfood items. You're buying a light bulb for $3.00, cereal for $2.50, and an orange for $.50. What will be the grand total of your bill?
*Tuesday, October 20, 2015 by Anonymous*

**Math Help!**

An estimate for ^123 is? A. 10 B. 11 C. 12 D. 13 How do I do this please help!!
*Tuesday, October 20, 2015 by Amber*

**Math **

Sheryl spends $9 dollars a week and $30 dollars a month on dry cleaning
*Tuesday, October 20, 2015 by Tee*

**Math Help!**

An estimate for -^66 is A. -6 B. -7 C. -8 D. -9 I'm not sure How to do this problem?
*Tuesday, October 20, 2015 by Amber*

**Math**

Bought 2 2/3 pounds of beef for $10.00 what is the cost per pound
*Tuesday, October 20, 2015 by Anonymous*

**math**

Kim uses decals to decorate 5 cars and 2 bikes. she uses 2/3 of the decals on the cars and 2/5 of the remaining decals on the bikes. She has 6 decals left. How many decals does she use on each car? 2/3 of decals on 5 cars 2/5 of remaining on 2 bikes. 6 left over
*Tuesday, October 20, 2015 by nita*

**Math**

The ratio of the number of men to the number of women to the number of children in a theater is 3:5:2 there are 69 men in theater A.how many more are there in the theater B.how many children are there in theater
*Tuesday, October 20, 2015 by Maddie*

**math**

From cape to home is 500km I drive from Home at a 100km/h how long will it take in hours
*Tuesday, October 20, 2015 by eric*

**math**

if the relation between x and u is 3x + 4u + 7 = 0 and the correlation coefficient between x and y is -0.6, then what is correlation coefficient u and y
*Tuesday, October 20, 2015 by nnn*

**math**

An aeroplane was flying at a height of 1800m if it descends at a constant rate of 60m every minuite then what will be its temperature after 15minuites?
*Tuesday, October 20, 2015 by khaza*

**math**

Suppose an amount increases by 100%, then decreases by 100%. Find the final amount. Would the situation change if the original increase was 150%? Explain your reasoning. THANK YOU!
*Tuesday, October 20, 2015 by Tim*

**Math**

Of rug has a length that is two times its width. The area of the rug is 8 square feet. What is the length And width of the rug?
*Tuesday, October 20, 2015 by Chris*

**math**

Leroi and Sylvia both put $100 in a savings account. Leroi decides he will put in an additional $10 each week. Sylvia decides to put in additional 10% of the amount in the account each week. 1)Who has more money after the first additional deposit? Explain. 2)Who has more money...
*Tuesday, October 20, 2015 by Tim*

**MATH**

ESTIMATE QOUTIENTS OF 215 DIVIDE BY 9?
*Monday, October 19, 2015 by MARIANA*

**Math**

Chocolate Box Company is going to make open-topped boxes out of 3 × 11-inch rectangles of cardboard by cutting squares out of the corners and folding up the sides. What is the largest volume box it can make this way? (Round your answer to one decimal place.) My work (11-...
*Monday, October 19, 2015 by Nathan*

**Simple interest math**

How many years will it take to double an investment if the annual simple interest rate is 5.3%? Round to the nearest 10th.
*Monday, October 19, 2015 by Kate*

**math help azap**

What is the value of a? -2(a-8)+6a=36 a=
*Monday, October 19, 2015 by flaca*

**MATH HELP AZAP**

What is the value of n? 2n-7/3=15 n=
*Monday, October 19, 2015 by flaca*

**Math grade 5-6**

Some students are making muffins to sell to earn money to go on a school trip.The students use two and two- thirds cups of flour and three eggs for every dozen muffins they make. The students make eight dozen muffins. How many cups of flour and how many eggs do the students ...
*Monday, October 19, 2015 by Lemi*

**Math**

choose the correct solution and graph for the inequality. 3y-4<-19 or 3y+5>11 Y > - 5 or y < 2 Y < 5 or y > - 2*** Y < - 5 or y > 2 Y < - 5 or y > - 2 Thanks
*Monday, October 19, 2015 by Bubbles*

**math**

Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. A baker used packages of raisins when he was making muffins. Each package contained pounds of raisins. How many pounds of raisins did the baker use?
*Monday, October 19, 2015 by diego*

**math**

20x-x^2
*Monday, October 19, 2015 by baba*

**math**

solve the expression √12 x √30 -√20 x √8 simplifies to
*Monday, October 19, 2015 by Anastasia*

**Math**

a fertilizer covers 5\8 square foot in 1\4 hour
*Monday, October 19, 2015 by Anonymous*

**Math**

what is the measurement of the end of a crayon in cm
*Monday, October 19, 2015 by Student*

**Math**

How many 5 foot tiles are needed to completely cover a 40 foot square wall?
*Monday, October 19, 2015 by Jerry*

**Math**

Use an array 4x36
*Monday, October 19, 2015 by Mia*

**math**

Making lemonade mixes 1/3cup of lemon juice with 4/9 cup of water. How much more water than lemon juice was used?
*Monday, October 19, 2015 by deb*

**Math **

what is the size of a crayons top tip in centimeters?
*Monday, October 19, 2015 by Student*

**Math**

A small organism with a length of 7.5x10^-5 meter tripled in size. Write the new length in standard notation
*Monday, October 19, 2015 by Anonymous*

**math **

msrcus wants to buy 5 baseball cards. he has $35 what is the most each card will cost? write inequality to solve
*Monday, October 19, 2015 by Kelly *

**math**

how to explain the answer of 2.35 x 10 to the 14th power... and also explain how i got the answer of 2.35 X 10 to the 13th power... Thank you very much
*Monday, October 19, 2015 by sandra*

**MATH CHECK PLEASE**

James bought 5 baseball cards at a garage sale for $0.65 each. He sold them to a collector for $2.25 each. what was his profit? A. $3.25 *** B. $8.00 C. $11.25 D. $14.50 Serena has 7/8 yd of fabric. To complete her craft project, she needs 3 times that amount. How many yards ...
*Monday, October 19, 2015 by HelpME:(!!!*

**Math**

900 x 2
*Monday, October 19, 2015 by Anonymous*

**math Help Azap!!!**

What is the value of a? 9a-3(a-6)=-6 a= HELP AZAP PLEASE
*Monday, October 19, 2015 by flaca*

**Math**

Choose the correct solution and graph for the inequality -4 x ≤ -12 x ≥ 3 x ≤ 3 x ≥ 8**** x ›-8 what are all the subsets of the set {-8 4} 0 (with slash) {-8}, {4}**** {-8}, {4},{-8,4} {-8},{4} 0 with slash, {-8},{4},{-8,4} Thank you
*Monday, October 19, 2015 by BUBBLES*

**math**

What is the value of n? 12+4n/3=8 n=
*Monday, October 19, 2015 by flaca*

**Math**

Naomi and 50 red beads and white beats the number of red beads is one more than six times the number of white bees how many red beans does Naomi have. What does one more than six times the number of white beads mean coming from me Alexis I do not know how to show my work you ...
*Monday, October 19, 2015 by Alexis*

**Math**

Can someone help please. I'm really confused. 12 + 3(2y – 3) Thank you random person if you do help me! It would be really great and helpful if you do.
*Monday, October 19, 2015 by MeowCat97*

**Math**

Starting from 105 feet away a person on a bicycle rides towards a checkpoint and then passes it. the rider is traveling at a constant rate of 35 feet per second. THe distance between the bicycle and the checkpoint is given by the equation d= [105-35t] at what times is the bike...
*Monday, October 19, 2015 by BUBBLES*

**Math**

Felicia takes 4 hours to ride her bike 56 miles. She rides at a constant speed during the 4 hour ride. What is her speed in miles per hour?
*Monday, October 19, 2015 by Amy*

**Math**

There is 7/8 of a cup of broccoli in a bowl. How many 3/4 cup servings can be made?
*Monday, October 19, 2015 by Amy*

**Physics-E&M**

8.1 Collision? A permanent magnet creates a homogenous magnetic field B~ inside a rectangular region. The magnet is moving with a velocity ~v ⊥ B~ . A particle at rest with mass m and charge Q is on the path of the magnet. Assume that the magnet has a mass much larger ...
*Monday, October 19, 2015 by Ryan*

**Math**

You have 60 CD cases and a 24 inch shelf. If each CD case is 3/8 an inch, is there enough room on the shelf for the CD cases?
*Monday, October 19, 2015 by Anonymous*

**math**

how to explain to my son write doubles fact you can use to find the sum.Write the sum 2+3=
*Monday, October 19, 2015 by scott*

**math **

e+7=15 22 8<--- 7+8=15 -8 -22 r+18=26 8<--- 18+8=26 6 44 54 a-6=19 25 13<--- 6-13=19 -13 -25 b-3=4 7<--- 3-7=4 1 -1 -7 let me know please
*Monday, October 19, 2015 by AABBCC*

**Math**

In the formula RT equals D, are is right T is time and E is distance what is the rate for a runner who completes 7.5 miles in 1.5 hours (10 points) A(11.25mph B(9.0mph C(6.0mph D(5.0mph
*Monday, October 19, 2015 by Jirehn*

**Math**

How to solve csc^2 x = 5 in the 0 <= x < 2pi?
*Monday, October 19, 2015 by Anonymous*

**Math**

How to solve csc^2 x = 5?
*Monday, October 19, 2015 by Anonymous*