Friday

October 9, 2015
**math**

a plane left atlanta at 11:30am and flew to an airport in boston. the plane was due at boston at 3:15pm. the plane arrived 25 minutes late. The time of the trip was: i just dont get the part time of the trip Please just tell me what i am supposed to do.
*Tuesday, August 4, 2015 by Anonymous*

**math**

To get a year's digit product, multiply the year's digits. For example, between 1900 and 2000, the 2 years 1913 and 1931 each have a digit-product of 27. What is the largest integer n for which n of the years from 1900-2000 have the same non-zero product? A. 2 B. 3 C. ...
*Tuesday, August 4, 2015 by George*

**math**

If x is greater than or equal to 100, then √x+16 (the whole thing is square rooted) is between A. √x and √x+1 B. √x+1 and √x+2 C. √x+2 and √x+3 D. √x+3 and √x+4 How do I go about solving this?
*Tuesday, August 4, 2015 by George*

**math**

For how many different positive integers n will n, n+2, and n+4 represent three different prime numbers? A. none B. 1 C. 2 D. 3
*Tuesday, August 4, 2015 by George*

**math**

Exactly ? different pairs of integers (x,y) represent points on the circle x^2 + y^2 = 25. A. 12 B. 8 C. 6 D. 4
*Tuesday, August 4, 2015 by George*

**Math**

The quotient equals the divisor, then the dividend equals the (A) square root of the divisor (B) divisor (C) divisor^2 (D) quotient
*Tuesday, August 4, 2015 by Jeana*

**Math**

How much money is 3/4 of $24 ?
*Tuesday, August 4, 2015 by Shelly*

**Math**

Britney spears her grilled shrimp so the product of the numbers of shrimp is 1001. If the number of shrimp on each spear is a prime, how many shrimp does Britney spear altogether?
*Tuesday, August 4, 2015 by Jeana*

**math**

If x is greater than or equal to 100, then √x+16 (the whole thing is square rooted) is between A. √x and √x+1 B. √x+1 and √x+2 C. √x+2 and √x+3 D. √x+3 and √x+4 How do I go about solving this?
*Tuesday, August 4, 2015 by Mazim*

**Math **

Jesse is late for work and speeds to get to the office, which is 60 miles away from his house. On the way back, he drives at a more relaxed pace. Jesse drove 30 mph faster on the way to his office than on his way back. What was his overall average driving speed for the day?
*Tuesday, August 4, 2015 by Jeana*

**math**

1/1*2 + 1/2*3 + 1/3*4 + . . . + 1/2000*2001 + 1/2001*2002 A. 1/2002 B. 1999/2002 C. 2001/2002 D. 1 I can do this, I want to know how to do it a faster way... thanks!!
*Tuesday, August 4, 2015 by Mazim*

**Math**

It took Sandra 5 hours to drive to her father's house and back. She lives 120 miles from the city where he father lives. What was her rate per hour driving for the trip? Is it 48 miles per hour?
*Tuesday, August 4, 2015 by Jeana*

**math**

When each letter in the phrase "my huge taco" is replaced by a different digit, the value of m+y+h+u+g+e+t+a+c+o will be A. 9 B. 10 C. 45 D. 55 This is confusing, can I get an explanation and help?
*Tuesday, August 4, 2015 by Mazim*

**math**

You are considering a 30 year mortgage that charges 0.4% interest each month to pay off $250 000 mortgages, determine the monthly payment p that allows the loan to be paid at 360 months
*Tuesday, August 4, 2015 by Anonymous*

**math**

For how many different positive integers n will n, n+2, and n+4 represent three different prime numbers? A. none B. 1 C. 2 D. 3
*Tuesday, August 4, 2015 by George*

**math**

Exactly ? different pairs of integers (x,y) represent points on the circle x^2 + y^2 = 25. A. 12 B. 8 C. 6 D. 4
*Tuesday, August 4, 2015 by George*

**math**

If the roots of ax^2+bx+c=0 are 6 and 9, then the roots of 3ax^2+3bx+3c=0 are A. 2 and 3 B. 6 and 9 C. 18 and 27 D. -2 and -3 I think since you multiply by 3, the roots are multiplied by 3, but I'm not sure.
*Tuesday, August 4, 2015 by George*

**Math**

The average test score of 8 students in a class is 92. Two slacker kids join the class and the test average drops to 88. If one of the slacker kids scored an 80, what did the other slacker kid score?
*Tuesday, August 4, 2015 by Jeana*

**math**

lim 3-¡Ì5+x /1-¡Ì5-x x_>4
*Tuesday, August 4, 2015 by ajay*

**El camino college:math **

The xyz corporation claims that there's NO DIFFERENCE in the salary of female and male workers at the Southern California plant. A human rights agency took two samples(25 each) .the male sample gad a mean of 350per week wit standard deviation of 50. The female sample had a...
*Tuesday, August 4, 2015 by Alma*

**Math **

A circle has an area of 78.5 m square what is its radius use pie =3.14
*Tuesday, August 4, 2015 by Chimi*

**Math**

A circle has a circumference of 62.8 cm what is its area?
*Tuesday, August 4, 2015 by Chimi*

**Math**

A circle has an area of pie cm square what is its circumference in terms of pie
*Tuesday, August 4, 2015 by Chimi*

**math trig **

Solve for x if 3sin2x - 3sinx = 2 - 4cosx 0<x<180
*Tuesday, August 4, 2015 by ntsoaki*

**Urgent math**

5x + 2.8(480-x) = 2.68(480
*Tuesday, August 4, 2015 by Anonymous*

**Math**

A grocer wishes to blend two different coffee brands because he wants to make a blend of 480 pounds to sell at $2.68 a pound. If he uses a brand of coffee worth $2.50 a pound with another brand worth $2.80 a pound, how many pounds of each does he use? Please tell me the steps ...
*Tuesday, August 4, 2015 by Anonymous*

**math algebra**

At your local bar, chicken wings cost $0.30 a piece on Thursday night. Sriacha Ranch dressing (enough for 10 wings), cost $0.10 per serving. A pitcher of of ice tea cost $7.50 and a serving of celery cost $2.50 . Tax in your part of LA County is 8.5% and the standard tip rate ...
*Monday, August 3, 2015 by Justin*

**math**

A grocer wishes to blend two different coffee brands because he wants to make a blend of 480 pounds to sell at $2.68 a pound. If he uses a brand of coffee worth $2.50 a pound with another brand worth $2.80 a pound, how many pounds of each does he use?
*Monday, August 3, 2015 by Anonymous*

**math**

3^200/3^50 a. 4 b. 150 c. 3^4 d. 3^150
*Monday, August 3, 2015 by Anonymous*

**Math**

The supplement of an angle measures 11 times its complement. Then the measure of the angle is... A. 9 degrees B. 81 degrees C. 90 degrees D. 99 degrees E. 100 degrees
*Monday, August 3, 2015 by Michelle *

**math**

If a line whose x- and y- intercepts are equal does not pass through the origin, then its slope must be A. 0 B. 1 C. -1 D. undefined I'm thinking it's 0, I don't know though.
*Monday, August 3, 2015 by Ryan*

**Math**

jack and jerry can complete a job together in 4 hours. if jack require 6 hours to do the job alone, how many hours will it take jerry to do the job alone. A.12 B.10 C.8 D.6 E.4
*Monday, August 3, 2015 by Michelle *

**math**

A received 44 more votes than B there were a total of 550 votes / 2 candidates how many votes did each receive write an equation where b received how many votes
*Monday, August 3, 2015 by jerry piester*

**Math**

Julia spent 1/3 of her birthday money. Then she lost 1/2 of the rest. She now has $10.00 dollars left.how much did she get for her birthday.
*Monday, August 3, 2015 by Jeremiah*

**math**

The result of adding a number to itself is usually unequal to the result of multiplying the number by itself. For how many different numbers are these results equal? A none B. one C. two D. four
*Monday, August 3, 2015 by Ryan*

**math**

If a line whose x- and y- intercepts are equal does not pass through the origin, then its slope must be A. 0 B. 1 C. -1 D. undefined I'm thinking it's 0, I don't know though.
*Monday, August 3, 2015 by Ryan*

**math**

I watched 1000 ants build an anthill in 5 hours. Working at the same rate, 2500 ants could have built the anthill in ? hours? A. 1 B. 2 C. 3 D. 4 I made a proportion of 1000/5=2500/x, and got 12.5, but thats not a choice. HELPS!
*Monday, August 3, 2015 by Ryan*

**Math**

Sara is making cookies and the recipe calls for 2 1/2 (2.5) cups of sugar to make two dozen cookies. How many cups of sugar will she need to make five dozen cookies? Express the answer as a mixed fraction and as a decimal
*Monday, August 3, 2015 by Cheyenne*

**Urgent math**

The initial size of a culture of bacteria is 1000. After one hour the bacteria count is 4000. (a) Find a function n(t) = n0ert that models the population after t hours. n(t) = b)Find the population after 1.5 hours. (Round your answer to the nearest whole number.) n(1.5) = ...
*Monday, August 3, 2015 by Emma*

**Urgent math**

i need help with these two homework problems Use the Laws of Logarithms to combine the expression into a single logarithm log2 5 − 5 log2 x + 1/2 log2(x + 1) Solve the logarithmic equation for x log2(x + 2) + log2(x − 1) = 2
*Monday, August 3, 2015 by Emma*

**Urgent math**

g(x) = log3(x + 3) state its domain, range, and asymptote. i am having trouble with this can somebody help me?
*Monday, August 3, 2015 by Emma*

**Math**

Suppose that a certain material has a half life of 25 years, and there are A(t)=10(1/2)^t/25 grams remaining after t years. find: i) initial amount i) Amount after 80 years Solutions i) A(0)=10(1/2)^(0/25) =10(1/2)^0 =10(1) =10 ii)A(80)=10(1/2)^(80/25) =10(1/2)^(16/5) =10(0....
*Monday, August 3, 2015 by Aron*

**math**

Solve using suitable property [name the property] 1]428 x[-23]+[-428]x(-223) 2] 105 x(-37)
*Monday, August 3, 2015 by Raina*

** math**

WHAT ARE THE QUESTION IN BUSMATH?
*Monday, August 3, 2015 by tan*

**Urgent math**

please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) = (b) Use the function from part (a) to ...
*Monday, August 3, 2015 by Lydia*

**Urgent math**

population growth model. Can anybody please help me out in trying to solve this problem? It's my homework and I don't seem to understand what I am getting. The count in a culture of bacteria was 400 after 2 hours and 25,600 after 6 hours. (a) What is the relative rate...
*Monday, August 3, 2015 by Lydia*

**Math Probability**

What is the probability of choosing an odd # from A that is AnB? A{1,2,3,4,7,9} B{3,7,9,11,12,15}
*Sunday, August 2, 2015 by Seany*

**math problems**

shelia works at Bills Bargin. She earns $350 per week plus 10% of all sales. What is her commission for the week, if she sold $2490 worth of goods?
*Sunday, August 2, 2015 by Tanya*

**Math**

Gary took a drive down to the beach and drove at a pace of 45 mph on the way there. The trip took him 3 hours. He drives the exact same route on the way back, but takes it slow so he can enjoy the sunset. If Gary's return trip took him 4 hours, how fast was he driving on ...
*Sunday, August 2, 2015 by Jeana*

**Math **

Henry found a tablet computer on sale with an incredible 55% discount. If he ended up paying $215 for the tablet, what was its original non-sale price?
*Sunday, August 2, 2015 by Jeana*

**Math**

a person who is 6 feet tall is standing 108 feet from the base of the tree, and the tree cast a 120 foot shadow . The person's shadow is 12 feet in length that is the height of the tree
*Sunday, August 2, 2015 by Mo*

**Math**

a local government had an employee reduction and lost 1/9 of their employees. If 176 of its employees were left after the reduction how many employees were there originally?
*Sunday, August 2, 2015 by Bella*

**Math**

The area of square 1 is 4. The perimeter of square 2 is tree times the perimeter of square 1. What is the area of square 2?
*Sunday, August 2, 2015 by Jeana*

**Math**

The lengths of two sides of a parallelogram are 3 and 5. Which of the following is a possible value for the length if a diagonal if a parallelogram?
*Sunday, August 2, 2015 by Jeana*

**Math**

The three sides of a triangle are 5, 9, and x. What inequalities gives the range of values for x?
*Sunday, August 2, 2015 by Jeana*

**Math**

Two similar triangles have perimeters of 12 feet and 36 feet, respectively. If the area of the smaller triangle is 6 square feet, what is the area of the larger triangle?
*Sunday, August 2, 2015 by Jeana*

**math**

Solve the elimination method. 4x-9y=18.5 7y-2x=10.5
*Sunday, August 2, 2015 by Tykechia*

**Math**

Which of the following represent the number of units between -5 and -2 on the number line? a.|-5 -(-2)| b.|-2 -(-5) c.|-5 + (-2_| d.|-2 +(-5)|
*Sunday, August 2, 2015 by Pam F*

**math **

Sam bought a new car for $26,500. The car depreciates approximately 13% of its value each year. a) What is the decay factor for the value of this car? b) Write an equation to model the decay value of this car?
*Sunday, August 2, 2015 by mary*

**math**

given that the funcfion f(x)= X+p/X-3. find f(x)
*Sunday, August 2, 2015 by Anonymous*

**Math ho.**

Explain why 6.7320508075689 is a irrational.
*Sunday, August 2, 2015 by Kimber*

**Math ho.**

A piece of ribbon 25 meters long is cut into pieces of equal length. It is possible to get a piece with irrational length?
*Sunday, August 2, 2015 by Kimber*

**Math**

What is the 11th term of the following geometric sequence? Enter a whole number 7/9,-7/3,7,-21,63
*Saturday, August 1, 2015 by Liz *

**math**

if y=y(x) is a solution of y' = y/x + x/y and y(1)=2 then y(e) is ? so I used the homogeneous equation method and subbed v=y/x then found y' = xv' +v and subbed those into the original equation to get xv' + v = v +1/v what do i do from here?
*Saturday, August 1, 2015 by Anonymous*

**math**

the general solution of the diff. eq. is y' = (1/x)(y/(1-y)) - (1-x)(y/(1-y)) what is the implicit form? what method would I use for this?
*Saturday, August 1, 2015 by Anonymous*

**math**

Jason invested $13700 for 2 years and received $1096.00 in interest. At what rate did he invest if the interest was calculated using the simple interest formula? Use the formula
*Saturday, August 1, 2015 by Anonymous*

**MATH**

the fist term of a geometric series is 1, the nth term is 128 and the sum of the n term is 225. Find the common ratio and the number of terms?
*Saturday, August 1, 2015 by Alleyah*

**Math**

A certain recipe requires 6 2/7 cups of flour and 7 2/9 cups of sugar. A) if 6/5 of the recipe is to be made, how much sugar is needed? Write your answer as a proper or improper fraction: B) if the above ingredients are required for one batch, find the amount of flour needed ...
*Saturday, August 1, 2015 by Karen*

**Math**

In a certain industry, 35% are female, 72% work full time and 18% are females who work full time. Probability that a randomly chosen employee is female and does not work full time? A: 0.18 B: 0.54 C: 0.11 D: 0.17 E: 0.098 I got 0.098 because I did 0.35 * 0.28. The actual ...
*Friday, July 31, 2015 by G*

**math**

ANGLE OF ELEVATION, The height of an outdoor basketball backboard is 12 1/2 feet and the backboard casts a shadow 17 1/8 feet long.
*Friday, July 31, 2015 by ivander*

**Math/need help**

Hi I know how to find P(A and b) and P(AuB) My problem is finding say P(A)=0.60 and P(B with a line over the B)=0.40. what do I need to do. I get two right than 3 wrong. Can you please help. Thank you
*Friday, July 31, 2015 by Mary Ann *

**Math 157**

Find the prime factorization of 33^5*39*25^12 Thanks!
*Friday, July 31, 2015 by Kim*

**5th grade math **

what can be a word problem that can be represented by the equation 1) 1/4 + 3/4=? 2- 7/8=?
*Friday, July 31, 2015 by anonymous *

**math**

7777 divided by 77
*Friday, July 31, 2015 by Anuj*

**Math**

Suppose x is an angle in the second quadrant such that cosx=-8/17, what is the value of tan(3x/2)?
*Friday, July 31, 2015 by Alexa*

**Math**

Please help with math question below: Express the triple angle formula of tangent (i.e. tan〖(3x)〗) in terms of tanx.
*Friday, July 31, 2015 by Alexa*

**Math**

Suppose a function f(x) has domain (-1,1). Find the domains of f((x+1)/(x-1))
*Friday, July 31, 2015 by Alexa*

**math**

A man spend 1/3 of his income on food, of the rest 1/4 on bills and 1/5 on miscellaneous things. Finally he left with Rs.1760. Find his income? a)4200 b)4600 c)4800) d)5200
*Friday, July 31, 2015 by mahesh*

**math**

-15+7
*Thursday, July 30, 2015 by Anonymous*

**math**

In a pseudopythagorean triangle, the sides are all integers and the sum of the square roots of the sides equals the square root of the third side. How many pseudopythagorean triangles are there. A. none B. 1 C. 2 D. more than 2 this is such a confusing question
*Thursday, July 30, 2015 by Ryan*

**math**

How many ounces of an alloy containing 30% gold on the world market must be added to 10 ounces of an alloy containing 5% to produce an alloy containing 20% gold?
*Thursday, July 30, 2015 by Anonymous*

**math**

there are 10 white socks and 6 black socks in a drawer. vic reaches into the drawer without looking and picks a white sock. he keeps the first sock out and reaches into the drawer again. to pick a second sock. what is the probability that the second sock vic selects will also ...
*Thursday, July 30, 2015 by Anonymous*

**math**

The two of us ordered a pizza whose area was the same as the area of a square in which the sum of the squares of the four sides plus the sum of the squares of the two diagonals is 400. The pizza's area was A. 50 B. 100 C. 150 D. 200
*Thursday, July 30, 2015 by Cody*

**Math**

You are given triangle ABC. AB=13,BC=15, and CA=14. Point D is on segment BC and CD=6. Point E is on segment BC such that CE>CD and ∠BAE=∠CAD. What is the length of BE?
*Thursday, July 30, 2015 by Alexa*

**Math**

the half life of a radioactive substance is one day. You have 100 grams. how much of the substance would be left after a week?
*Thursday, July 30, 2015 by Jo*

**math**

1cm=4miles. How many miles is 280cm^2?
*Thursday, July 30, 2015 by Seany*

**Math **

1cm=4miles. What is 280cm^2?
*Thursday, July 30, 2015 by Seany*

**math**

A farmer had 500 ducks and 300 chickens. He gave his sister 100 chickens and ducks. Later, the farmer bought 10 more ducks and 75 more chickens. As a result, the number of ducks decreased by 12% and the number of chickens increased by 15%. a) How many ducks did the farmer give...
*Thursday, July 30, 2015 by Ms Sue(Or anyone else)--HELP ME*

**Math**

In a group of m men, b men earn D dollars per week and the rest earn half that amount each. Represent the total number of dollars paid to these men in a week. P.S. Whenever i try solving this problem i get 3/2D(b+m) Could you kindly tell what i am doing wrong?
*Thursday, July 30, 2015 by Someone who needs help*

**Math **

(2x-1)^4 What is the coefficient of x^2?
*Thursday, July 30, 2015 by Seany*

**What did I did wrong MATH**

The ratio of number of one-dollar coins to the number of fifty-cent coins in a box was 3:4. Six one-dollar coins were removed and some fifty-cent coins if the same amount were added. The ratio of the number of one-dollar coins to the number of fifty-cent coins to the number of...
*Thursday, July 30, 2015 by Jackson*

**Math content exam**

Has anyone taken the Mathematics Content Exam 115 for Teacher's in the state of Illinois? Please give me tips or help. Thanks!
*Thursday, July 30, 2015 by Seany*

**math**

If 5^x = 7, then 5^x+2 = A. 9 B. 14 C. 49 D. 175 How is 5 to the x equal to 7 possible, and how do I solve this?
*Thursday, July 30, 2015 by Cody*

**math**

For how many different negative values of x is √x+2001 an integer? A) 42 B) 43 C) 44 D) 45 A lot to list out, any way to find it faster??
*Thursday, July 30, 2015 by Cody*

**math**

How many integers greater than 1 million and less than 4 million are squares of integers? A) 998 B) 999 C) 1000 D) 1998 Can you help and show me a faster way than listing it out!?
*Thursday, July 30, 2015 by Cody*

**math, hard**

If |a| = -a and |b| = -b, then a-b= A) |a| +|b| B) |a|-|b| C) -|a|+|b| D) -|a|-|b| I don't get this, if you square root any number, how does it become negative??
*Thursday, July 30, 2015 by Cody*

**math! VERY hard! **

You need 3 pounds of fruit for a fruit salad. You already have 3/4 pound apples and 1/3 pound grapes. Drag fruit to the box that you can buy so you will have exactly the right amount with no extra. the choices are: 1/2 2/3 1/8 3/4 5/8 you can use those more than once to get to...
*Thursday, July 30, 2015 by anon*

**6th grade math**

What is the greatest number of pictures each 2.5 and 3.5 inches that a photographer can print on an 8 inch by 10 inch paper?
*Thursday, July 30, 2015 by MJ*

**math**

1/5 of your art-supply money goes for brushes. If you also spend 1/2 of your money on paint, what fraction of your money will you have left?
*Thursday, July 30, 2015 by anon*

**math**

One-fifth of your art-supply money goes for brushes. If you also spend 12 of your money on paint, what fraction of your money will you have left?
*Thursday, July 30, 2015 by anon*