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April 1, 2015

Homework Help: Math: Algebra

Recent Homework Questions About Algebra

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9th grade algebra
An Electrician Charges $120 After 2 Hours Of Work And $190 After 4 Hours Of Work. Write A Linear Model That Represents The Total Cost.
Sunday, October 5, 2014 at 8:31pm

ALGEBRA
The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 Equation 2 |2x + 1| + 4 = 3 Which statement is true about the solution to the two equations? Equation 1 and equation 2 have no solutions. Equation 1 has no solution and equation 2 has solutions x = 0, 1. The ...
Sunday, October 5, 2014 at 8:04pm

Algebra
4 years ago my father's age was 4 times that of my age. At present the sum of my father's age and that of mine is 53 years . What is father's present age.
Sunday, October 5, 2014 at 10:29am

Algebra 1 Check
Hi! Can someone check this and see if they are correct? Thanks! 1.) Which value of x should the expression be further simplified? √(21)x a.) 5 B.) 6 c.) 11 D. 55 My answer: a 2.) 2√43x is show: Which value of x makes the expression equivalent to 14√43? a.) 7 ...
Sunday, October 5, 2014 at 9:23am

Algebra 2 (Please, help me!)
What are the steps to performing the following transformation and then graphing it? Transformation: compress f(x) = |2x| - 3 vertically by a factor of 1/4.
Saturday, October 4, 2014 at 10:24pm

Algebra
-z/3<= 6 My answer is z>= -18
Saturday, October 4, 2014 at 9:55pm

Algebra
-5y <= -15 My answer is y>=3
Saturday, October 4, 2014 at 9:38pm

Algebra
How do you solve the equation by completing the square X^2+4x=10
Saturday, October 4, 2014 at 8:36pm

algebra
2x+3(x-2)^2
Saturday, October 4, 2014 at 7:42pm

Algebra
z- 1/5 > 1/4 My answer is z < 9/20
Saturday, October 4, 2014 at 5:27pm

Algebra
Of 375 musicians some play only jazz band, some play only the marching band, some play both.If 250 play in the jazz band and 130 play in both, how many play in the marching band? My answer is 135
Saturday, October 4, 2014 at 4:27pm

Algebra
Start from 110 feet away, a person on a scooter rides towards a checkpoint and then passes it. At what times is the scooter 40 feet away from the checkpoint? My answer is 2.3 to 4.6 seconds
Saturday, October 4, 2014 at 4:19pm

Algebra
A soda machine has flavors cola, root beer, an lime.Second machine has lemon, orange, cola, and cherry. What represents all flavors in the 2 machines? My answer: cola, cola, root beer, lime, lemon, orange, and cherry
Saturday, October 4, 2014 at 3:57pm

Algebra
A student scores 83 and 91 on her first 2 tests. Write and solve a compound inequality to find the possible values for a 3rd test score that would giver her an average between 85 and 90 inclusive. I know she has to score between 81 & 96 but I'm not sure how to show it the ...
Saturday, October 4, 2014 at 2:52pm

Algebra
What is a solution for-the inequality y>1.9? -9 -2 2 1.9 My answer is if it has to be greater then 1.9 the answer must be 2.0 from those 4 choices.
Saturday, October 4, 2014 at 2:25pm

Algebra
Suppose U = 1,2,3,4,5,6,7,8 is the universal set and P = 1,3,5,7, What is P? My answer is 1,3,5,7
Saturday, October 4, 2014 at 2:13pm

Algebra
If n is the set of natural numbers that are factors of 16, what is the set in roster form? My answer is 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
Saturday, October 4, 2014 at 2:09pm

Algebra
|p-10|=20 p=30? My teacher says there has to be 2 solutions for the absolute value
Saturday, October 4, 2014 at 12:51pm

statistics
how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...
Saturday, October 4, 2014 at 8:58am

algebra
find single- digit positive interger values x and y so the four numbers x++y, 3x+2y,8 and 9 can be combined to make 24.
Saturday, October 4, 2014 at 2:56am

Algebra
Perform the indicated operation or 6x/16+1/16
Friday, October 3, 2014 at 9:16pm

algebra 2
During last night’s basketball game, Lisa Schmidt made 30 points in field goals. A field goal is worth 2 or 3 points. If Lisa made 9 field goals worth 2 points each, how many did she make worth 3 points each? Let x represent the number of 2-point field goals Lisa made and...
Friday, October 3, 2014 at 5:48pm

math algebra
Decide whether the equation has one solution, no solution or infinitely amount of solutions. 1: 2(x - 3) = 2x one none infinitely 2: 3(y - 3) = 2y - 9 +y one none infinitely 3: 10x - 2 - 6x = 3x - 2 + x one none infinitely 4(x + 3) + 2x= x - 8 one none infinitely
Friday, October 3, 2014 at 2:59pm

algebra
If 182 lbs of force keeps a 1500 lb car from skidding on a curve of radius 500 ft at 30 mph, what force would keep the same car from skidding on a curve of radius 800 ft at 45 mph
Friday, October 3, 2014 at 12:49pm

Algebra 1 Check
This is the last question on my homework and I wanted to know if I got it right. Thanks! Which of the following inequalities is true for all real numbers of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤(4x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: C.
Friday, October 3, 2014 at 12:23pm

algebra 1
princess leia is a very good math student. Her average math grade was a 95 on her 15 tests. If Darth Mangham decides to drop her lowest grade, write an expression to determine her new test average.
Friday, October 3, 2014 at 8:03am

algebra
A plane takes 3 hours to travel 1500 miles with the wind. it can travel only 1380 miles against the wind in the same amount of time. Find the speed of the wind and the speed of the plane in still air.
Friday, October 3, 2014 at 1:26am

Algebra
(3x^2-4x^3+7)+(-5x+11-7x^3-4x^2)
Thursday, October 2, 2014 at 9:02pm

algebra
a squirrel can run at a speed of 20 miles per hour. How many feet per second is this?
Thursday, October 2, 2014 at 8:20pm

HELP! Algebra. DONT UNDERSTAND
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
Thursday, October 2, 2014 at 7:49pm

algebra
parts x4= strap
Thursday, October 2, 2014 at 4:39pm

Algebra 1
Jenny simplified the expression 7x + 5y + 4(x – y) – 6 and listed the Number Properties used: c) Redo the problem correctly. Justify each step using the correct Number Property. (2 points) Jenny’s Work Number Property Used 7x + 5y + 4(x – y) – 6 Given ...
Thursday, October 2, 2014 at 12:13pm

Algebra ll
X^2 - 25/2 AND 37/K^2-K-30 I really need help with these two problems.? •Explain in your own words what the meaning of domain is. Also, explain why a denominator cannot be zero. •Find the domain for each of your two rational expressions. •Write the domain of ...
Thursday, October 2, 2014 at 11:25am

Distributive Property Algebra
I have two questions I don't understand and I need you to explain the steps of each problem to me? Thanks. Use the distributive property 8(6-2) Use the distributive property to multiply 7(c+4) I will be putting this in my notes.
Thursday, October 2, 2014 at 10:24am

Algebra
How to Name Like terms? 5m+4+3m+6p do I just name 5m and 3m or is it more complicated than I think?
Thursday, October 2, 2014 at 10:07am

Algebra 2
Please work this problem. A= 1/2 h(c+d) h=
Thursday, October 2, 2014 at 4:08am

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

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