Thursday
October 2, 2014

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

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algebra
seven more than twice a certain number?
Thursday, October 2, 2014 at 1:02am

algebra 1
Find the x and y intercept of this equation: 10x-70y=210 I keep getting the wrong answer. Can you show me how to set it up and work it out?
Thursday, October 2, 2014 at 12:25am

Algebra HELP!
Factor each of the following expressions completely and then simplify, if possible: a: ax + 2x b: ax - 2x c: 3x - 4x + 7x d: 3x^2 + xy - x e: (a + b)(c + 1) - (a + b) f: x^2 - 9y^2 g: (x^2 - y^2) + x + y
Wednesday, October 1, 2014 at 11:38pm

Algebra
Tom went on a 3 Day road trip in which he drove the same number of miles each day. He drove 42 mph the first day. He drove 48 mph the second day. On the last day he drove a x mph. His average speed for the whole trip was 47 mph. Find x and write your answer to the nearest ...
Wednesday, October 1, 2014 at 11:00pm

Pre Algebra
Please help- I need to write a rule for each function. I have watched all the video's but this chart does not seem to have a pattern x y -4 4 0 6 2 7 4 8
Wednesday, October 1, 2014 at 10:13pm

Algebra
For every 1/2 mile sira jogs, she walks 3/4 mile. What unit rate gives the number of miles Sira jogs for every mile she walks.
Wednesday, October 1, 2014 at 9:56pm

Algebra
Find the first five terms of the sequence whose nth term is given. a: (-2)n + 2n b: n squared(-1)n c: |10-n squared|
Wednesday, October 1, 2014 at 8:39pm

Algebra
If x is an integer and x is not equal to zero, which of the following are always positive and which are always negative? a: -x to the power of 4 b: (-x) power of 4 c: x to the power of 4 d: x e: -x
Wednesday, October 1, 2014 at 8:32pm

Algebra 2
I need to use zero product property on these equations and I just need a few examples to get myself started on the other problems since I don't understand it at all. :c Help is appreciated. Thanks in advance. f(x)=x^2+8x+12 g(x)=6x&2+20x-16
Wednesday, October 1, 2014 at 6:53pm

Algebra
Write a system of equations to match each of these problems. Then solve the equations using the method... Substitution, or linear combinations. 1. Maria started her savings account with $105. She adds $10 to it each month, including the first month. Jana Rae started her ...
Wednesday, October 1, 2014 at 6:01pm

Algebra
Estimate each of the following and then use a calculator to find the actual answer: a: 343+ -42 - 402 b: -1992 + 3005 - 497 c: 992 - -10,003 - 101 d: -301 - -1303 + 4993
Wednesday, October 1, 2014 at 5:05pm

College algebra
There were 40,000 people at a ball game in Los Angeles. The days receipts were 298,000. How many people paid $12.00 for reserved seats and how many paid $5.00 for general admission?
Wednesday, October 1, 2014 at 4:02pm

algebra
5 (x + 10) + x ?? 6x + 15 5x + 15 6x + 50 4x - 50
Wednesday, October 1, 2014 at 11:37am

Algebra
Write the solution set of the inequality |x + 2| < 5 in the interval notation.
Tuesday, September 30, 2014 at 8:12pm

Algebra 2 Answer Check
Write an equation in slope-intercept form for the line. 1. Perpendicular to 5x + 2y = 8 and through (5,3). A: y = -1/5x + 4?
Tuesday, September 30, 2014 at 7:25pm

Algebra 1
Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following inequalities is true for all...
Tuesday, September 30, 2014 at 7:03pm

algebra 2
Multiply polynomials (ab-2)(ab+2)
Tuesday, September 30, 2014 at 5:51pm

Algebra 1
Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following inequalities is true for all...
Tuesday, September 30, 2014 at 5:42pm

Algebra ll
Rational expression pxplain your work please . 37/k^2-k-30 and x^2-25/2
Tuesday, September 30, 2014 at 4:42pm

Algebra 2
Please help!!!! Please help me with this Graph the compound inquality on the number line. x<3 or x>6=
Tuesday, September 30, 2014 at 4:32pm

Algebra 1
Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following inequalities is true for all...
Tuesday, September 30, 2014 at 4:20pm

Algebra
the outside of a picture frame has a length which is 4 cm more than width. The area enclosed by the outside of the picture frame is 165 square cm. Find the width of the outside of the picture frame.
Tuesday, September 30, 2014 at 1:08pm

ALgebra 2
Please help!!!!! - 1/2 - 3/4 =
Tuesday, September 30, 2014 at 10:20am

College Algebra
Jen recently rode her bicycle to visit her friend who lives 12 miles away. On her way there, her average speed was 10 miles per hour faster than on her way home. If Jen spent a total of 1 hour bicycling, find the two rates.
Tuesday, September 30, 2014 at 1:27am

Algebra
The largest bubble chamber in the world is 15 ft. in diameter and contains 7259 gal of liquid hydrogen at a temperature of -247 degrees Celsius. If the temperature is dropped by 11 degree Celsius per hour for 2 consecutive hours, what is the new temperature?
Monday, September 29, 2014 at 10:22pm

college algebra
y = 1 − (x − 2)^2
Monday, September 29, 2014 at 10:16pm

Algebra
Have three problems and I'm really confused how to solve/simplify 1. 4/3+square root of 5 2. -4/-4+4square root of 2 3. 1/1+ square root of 2
Monday, September 29, 2014 at 9:12pm

algebra
Solve for x. 1+x divided by 1+x^2=2 divided by 5
Monday, September 29, 2014 at 8:19pm

Algebra
If a researcher wanted to know the mean weight (the mean is the sum of all the measurements divided by the number of measurements) of women in the U.S., the weight of every woman would have to be measured and then the mean weight calculated, an impossible task. Instead, ...
Monday, September 29, 2014 at 8:12pm

algebra
What is the answer for 4 (1-3n)-14=4 (2n+3)-9n
Monday, September 29, 2014 at 5:59pm

algebra
Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. A. If zoey decides to use the 3/4 cup servings, how much more trail mix will she need? explain
Monday, September 29, 2014 at 5:52pm

algebra 2
graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 37. y=3x-4 y=6x-8 38. y=2x-1 y=2x+6 39. 2x+5y=10 -4x-10y=20
Monday, September 29, 2014 at 5:50pm

algebra
a ribbon is 3 2/3 yards long. Mae needs to cut the ribbon into pieces that are 2/3 yard long. use the model to find the number of pieces she can cut. Please help answer. thanks.
Monday, September 29, 2014 at 5:50pm

algebra
zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 servings. please help answer question A and N A. ten people are going on the camping trip. can Zoey make enough 3/4 cup servings so that each person on the trip has one serving? B...
Monday, September 29, 2014 at 5:48pm

algebra 2
graph each system of equations and describe it as consistent and independent, consistent and dependent, or inconsistent 10. y+4x=12 3y=8-12x 11. -2x-3y=9 4x+6y=-18 12. 9x-2y=11 5x+4y=13
Monday, September 29, 2014 at 5:46pm

algebra
the area of a rectangular picture frame is 30 1/3 square inches. the length of the frame is 6 1/2 inches.please help find the width of the frame. thanks
Monday, September 29, 2014 at 5:39pm

algebra
Dao has 2 3/8 pounds of hamburger meat. he is making 1/4 pound hamburgers. does Dao have enough meat to make 10 hamburgers? explain. thanks
Monday, September 29, 2014 at 5:38pm

algebra
Jeremy has 4 1/2 cups of iced tea. He wants to divide the tea into 3/4 cup servings. use the model to find the number of servings he can make. Please help answer question. thanks would it be 9/2 multiplied by 4/3
Monday, September 29, 2014 at 5:36pm

Algebra
An emergency plumber chargers $65 as a call-out fee plus an additional $75 per hour. He arrives at a house at 9:30 and works to repair a water tank. If the total repair bill is $196.25, at what time was the repair completed? In order to solve this problem, we collect the ...
Monday, September 29, 2014 at 5:19pm

Algebra
Rebecca has left three bags containing the same number of marbles, plus two marbles left over. She places them on one side of a balance. Chris, who has more marbles than Rebecca, adds marbles to the other side of the balance. He finds that with 29 marbles, the scale balance. ...
Monday, September 29, 2014 at 4:44pm

Algebra
I'm not getting it. I've tried to re-read the notes but I'm still confused. Label each statement as "true" or "false". If "false" correct the underlined portion. 1) If *|n+9| <_4,* then n+9>_ 4 and n +9_<4 2) If y-x <5-x ...
Monday, September 29, 2014 at 3:34pm

Algebra II
4. The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) 2 pi (12x2 -5x -2)* my answer??
Monday, September 29, 2014 at 2:41pm

Algebra
Please Help Me with this problem:Ozark Furniture Company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple, and a modern rocker requires 12 board feet of maple. ...
Monday, September 29, 2014 at 2:33pm

Math help algebra
You have a gift card for your favorite clothing store for the amount of $60. You have found a shirt you want to buy that costs $15. If you don't want to spend more than the amount of the gift card, which of the following inequalities could be used to determine the amount ...
Monday, September 29, 2014 at 2:07pm

Algebra 1
I have been trying to figure out how to solve multi-step equations. Such as 1/2x+1/4x=16. How do you solve these? I can't seem to figure it out.
Monday, September 29, 2014 at 1:44pm

algebra
as part of her training routine for basketball, shaylle alternates between cycling and running for exercise. she cycles at a rate of 14 mph and runs at a rate of 8 mph. if she spends 8.5 hours exercising and covers a total of 101 miles, how much time did she spend on each ...
Sunday, September 28, 2014 at 10:34pm

algebra
You are the payroll manager for Euro Couture, a manufacturer of women's apparel. Your workers are paid per garment sewn on a differential piecework schedule as follows. Pay Level Garments Produced Rate per Garment 1 1-50 $3.60 2 51-100 $4.25 3 101-150 $4.50 4 0ver 150 $5....
Sunday, September 28, 2014 at 10:27pm

Algebra
How do I simplify this problem. (2nr - nr^2)r - (2nr - nr^2) . 2r
Sunday, September 28, 2014 at 9:56pm

Algebra
Adding and subtracting polynomials. Can someone help me solve this problem? 5x^3 . 2x^2 - 10x^4 + 3x^5 + 3x .(-2)x^4 . = The dot means to multiply. Thank you.
Sunday, September 28, 2014 at 9:27pm

algebra 1 question
Solve. 3/2 x - 4 = 16 x = 20 x = 13 1/3 x = 15 1/3 30 i got x = 16 and in decimal form 13.333 and even others! I'm going for 13 1/3 or 15 1/3. Help?
Sunday, September 28, 2014 at 6:30pm

pre algebra
A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help
Sunday, September 28, 2014 at 5:55pm

Algebra 2
Two woodworkers, Tom and Carlos, bring in $100 for making a table and $80 for making a chair. On average, Tom must work 3 hours and Carlos 2 hours to make a chair. Tom must work 2 hours and Carlos 6 hours to make a table. If neither wishes to work more than 42 hours per week, ...
Sunday, September 28, 2014 at 4:27pm

High school algebra
A scouting report states that Ben throws a ball 88 mph. Determine how fast Ben throws in feet per second
Sunday, September 28, 2014 at 2:13pm

Algebra
To find the product 3/7 multiplied by 4/9, Cameron simplified 3/7 to 1/7 and then multiplied the fractions 1/7 and 4/9 to find the product 4/63. What is Cameron's error? Please help answer thanks
Sunday, September 28, 2014 at 1:00pm

Algebra
Kate wants to buy a new bicycle from a sporting goods store. The bicycle she wants normally sells for $360. The store has a sale where all bicycles cost 5/6 of the regular price. What is the sale price of the bicycle? Please help solve. Thanks
Sunday, September 28, 2014 at 12:57pm

algebra
on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph ____ft.? and v=55mph ...
Saturday, September 27, 2014 at 11:00pm

algebra
The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound? $8 coffee __________ $4 coffee __________
Saturday, September 27, 2014 at 10:33pm

Algebra 1
Adding and subtracting polynomials. (6-t-t^4) + (9t+t^4) How do you solve this problem?
Saturday, September 27, 2014 at 10:32pm

algebra
on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph ____ft.? and v=55mph _____ft.?
Saturday, September 27, 2014 at 10:30pm

Algebra
A building is 2ft from a 9ft fence that surrounds the property. A worker wants to wash a window in the building 13ft from the ground. he plans to place a ladder over the fence so it rests against the building. he decides he should place the ladder 8ft from the fence for ...
Saturday, September 27, 2014 at 10:14pm

Algebra
An herbalist has 40 oz of herbs costing $4 per ounce. How many ounces of herbs costing $1 per ounce should be mixed with these 40 oz of herbs to produce a mixture costing $2.20 per ounce? oz
Saturday, September 27, 2014 at 8:32pm

algebra
1 cm to the third of aluminum weighs 2.7 grams if a sheet is 0.003 8 find the weight
Saturday, September 27, 2014 at 2:41pm

algebra 2
Solve each system of equation by grpahing? 3. y=-3x+6 2y=10x-36 4. y=-x-9 3y=5x+5
Saturday, September 27, 2014 at 12:55pm

Algebra
20 foot wire is cut so that the longer peace is four times longer than the shorter piece.what are the lengths of each piece?
Saturday, September 27, 2014 at 5:47am

Algebra 2
To estimate the size of a bear population on the Keweenaw Peninsula, conervationist captured, tagged, and released 50 bears. One year later, a random sample of 100 bears included only 2 tagged bears. What is the conservationist estimate of the size of the bear population?
Saturday, September 27, 2014 at 1:28am

Algebra 2
y-1 ____ x+3 = -3/4 (equivalent ratio) can you explain the steps which you use to get this answer and why you use them . I am sorry I am a disable student and it hard some time to grasp this math fo rme.
Saturday, September 27, 2014 at 12:29am

Algebra 2
Please help me with this problem and can you write down the steps. y-1 ____ x+3 = 3/4 (equivalent ratio)
Saturday, September 27, 2014 at 12:17am

algebra
a triangle has a perimeter of 126 centimeters, each of the 2 longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle.
Friday, September 26, 2014 at 8:28pm

algebra
The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound?
Friday, September 26, 2014 at 8:17pm

Abstract Algebra
If G is a group with exactly 66 elements of order 14, how many subgroups of order 14 does G have?
Friday, September 26, 2014 at 4:40pm

algebra 2
solve each system of equation by using a table 1. y=3x-4 y=-2x+11 2. 4x-y=1 5x+2y=24 how do you do these?
Friday, September 26, 2014 at 3:52pm

Algebra 2
Y-1/x+3 =3/4 Can you explain your teps. Thank you
Friday, September 26, 2014 at 12:58pm

Math(Algebra)
Estimate the size of the bear population 50 bears, 1 year later 100 bears, 2 with taggs what is the estimated size of the bears can you Please wirite me the stepes so I cam understand what you did. Thank You so much foer your help.
Friday, September 26, 2014 at 12:56pm

Algebra HELP PLEASE
Which is a solution to the equation y = 2x 5?
Friday, September 26, 2014 at 12:09pm

Algebra
T-Riffic T shirts for a $20 design fee plus $8 charge per shirt printed, what is the algebraic rule?
Friday, September 26, 2014 at 12:48am

algebra
a motorboat left a harbor and traveled to an island at an average rate of 12 knots, the average speed on the return trip was 10 knots. If the total trip took 8.8 hours, how far is the harbor from the island?
Thursday, September 25, 2014 at 9:41pm

Algebra 1
A student reads an average of 34 pages per day. The number of pages she reads per day varies from the average by up to 8 pages. a. Write an absolute value inequality that represents the range of the number of pages she reads per day. b. Solve your inequality
Thursday, September 25, 2014 at 7:49pm

Algebra
In a sports poll, 53% of those surveyed believe their high school football team will win the state championship. The poll shows a margin of error of +-5 percentage points. Write and solve an absolute value inequality to find the least and the greatest percent of people that ...
Thursday, September 25, 2014 at 7:47pm

algebra
The cost, c(x) in dollars in per hour of running a certain fishing boat is modeled by the function c(x)= 0.9x^2 - 18.1x + 135.1, where x is the speed in km/hour/ At what approximate speed should the boat travel to achieve minimum cost?
Thursday, September 25, 2014 at 7:35pm

Algebra 1
In order to earn an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. What score do you need to get on the last test to earn an A? Show your work.
Thursday, September 25, 2014 at 7:20pm

Algebra 1
A teacher knows that 80% of her students will score no more than 5 points above or below the class average, 85%, on the test. Which inequality represents the test scores of 80% of her students? a. 75<A<85 b. 85<=A<=90 c. 80<A<90 d. 80<=A<=90
Thursday, September 25, 2014 at 7:16pm

Algebra
Jill asks each of her classmates to choose a number, then multiply the number by -3, add 2 to the product, multiply the result by -2, and then subtract 14. Finally, each student is asked to divide the result by 6 and record the answer. When Jill gets an answer from a classmate...
Thursday, September 25, 2014 at 6:33pm

Algebra
In the metric system there are two official temperature scales: degree Celsius and kelvin. The kelvin temperature scale is obtained by shifting the Celsius scale so of any heat whatsoever. An equation about the relationship between the two scales follows: kelvin~ degree ...
Thursday, September 25, 2014 at 4:17pm

Algebra
How do you solve the equation by taking square root 7p^2+16=2151
Thursday, September 25, 2014 at 2:43pm

Algebra 2
We have opposing answers, can you help? What is the simplified form of (2x2 + 4x – 3)(3x + 1) ? 6x3 + 10x2 – 5x + 3 * 6x3 + 14x + 5x – 3 6x3 + 14x2 – 5x – 3 my answer 6x3 – 10x2 – 5x – 3*
Thursday, September 25, 2014 at 2:17pm

algebra
can you help me with the Lesson 9: Operations and Applications of Scientific Notation Connections Education 1205070 M/J PRE-ALG - T1 Unit 2: Rational Numbers test.What is the product of (5.1*10^3)*(3.2*10^3)? (please express your answer in scientific notation.)
Thursday, September 25, 2014 at 1:39pm

algebra
How do I graph x<2y and x+y<0
Thursday, September 25, 2014 at 1:39pm

Algebra 2
Am I correct? The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? Use the formula A = 2pi r2 + 2 pi rh. 2spi (3x2 + 10x – 8) 2 pi (12x2 + 7x-2) 2 pi (12x2 -2x +13) my answer 2 pi (12x2 -5x -2)
Thursday, September 25, 2014 at 1:14pm

Algebra (Quadratics)
The height y (in feet) of a baseball thrown by a child is y = -1/10 x^2 + 3x + 6 where x is the horizontal distance (in feet) from where the ball was thrown. Will the ball fly over the head of another child 30 feet away trying to catch the ball? (Assume that the child who is ...
Thursday, September 25, 2014 at 8:41am

ALGEBRA 2
'OR" COMPOUND INEQALITY 1-X>_-3 OR 5X - 1 > 19
Thursday, September 25, 2014 at 1:22am

ALGEBRA 2
-1<_3 + 2X <11
Thursday, September 25, 2014 at 1:19am

Algebra, Please Help!
How do i find the radius of a circle with the center (16/11,79/11)? Thanks
Wednesday, September 24, 2014 at 11:19pm

Algebra
1.How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) ? 2. The Radius of the circle? 3. Equation of circle THANKS!
Wednesday, September 24, 2014 at 11:00pm

algebra
midpoint (-5,-15) endpoint (-13,-8). find the other endpoint
Wednesday, September 24, 2014 at 10:35pm

Algebra Help
How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) I also found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And the Equation of the perpendicular bisector of the line between the second...
Wednesday, September 24, 2014 at 9:59pm

Algebra II Honors
There are some interesting special cases in which the graphs turn out to be parallel, perpendicular, or coincident with the coordinate planes or axes. Sketch a graph of each of the following equations by drawing their traces as in Problem 1. Then tell what the graph is ...
Wednesday, September 24, 2014 at 8:53pm

Algebra 2
Without graphing, identify the verx, axis of symmetry, and transformations from the parent function f(x)= absolute value of x y= 4- absolute value of x-2
Wednesday, September 24, 2014 at 8:40pm

Linear Algebra
Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)
Wednesday, September 24, 2014 at 8:14pm

Algebra
Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)
Wednesday, September 24, 2014 at 7:13pm

algebra
I invest a sum of money at 10% annual simple rate and twice that amount at 12% annual simple interest.My total yearly in come from both investment was $2890,how much was invested at each rate? Also What is the speed of each train if one train travels 8 mph faster than the ...
Wednesday, September 24, 2014 at 6:31pm

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