Questions on Algebra: Average answered by real tutors!

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Question 444995: Please help me solve the problem a-4=b+3 and show me the steps

Click here to see answer by Alan3354(31487)

Question 446091: What is the solution to this problem?
4 - 8x < 13 + 3x, x= 4

Click here to see answer by MathLover1(6801)

Question 446088: For this inequality, x+2 < 5, x= 6, would the solution be
6+2<5

Click here to see answer by MathLover1(6801)

Question 446136: How would I solve this?
7(2x+3)>4(4x-7) if x=3

Click here to see answer by stanbon(57940)

Question 446136: How would I solve this?
7(2x+3)>4(4x-7) if x=3

Click here to see answer by rfer(12726)

Question 446246: use the pythogorean theorem and the square root property to solve the following problem. Express your answer in simplified radical form. Then find a decimal approximation to the nearest tenth. Question: A rectangular park is 24 miles long and 8 miles wide. How long is a pedestrian route that runs diagonally across the park?
Click here to see answer by Alan3354(31487)

Question 446394: Would I add 4 to both sides to solve this? The first step would be 5 *2 = 6 and so on, right? How to solve?
5(2x+3)≥4(6x-1)

Click here to see answer by stanbon(57940)

Question 446394: Would I add 4 to both sides to solve this? The first step would be 5 *2 = 6 and so on, right? How to solve?
5(2x+3)≥4(6x-1)

Click here to see answer by bucky(2189)

Question 447208: Find an outlier and tell how it affects the mean
Question- 28,12,37,36,30,32,35
Click here to see answer by richard1234(5390)

Question 447665: what is y/3+6=-1
Click here to see answer by solver91311(17059)

Question 448495: If my average in a class is an 81 and I made a 30 on my exam that counts 20% of my grade, then what would be my final grade?
Click here to see answer by Alan3354(31487)

Question 448856: Could you please show me how to solve this?
b)The water line is given by the equation
y= -2/3x - 12
.
Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future. Could you place it at the point
(-4,-10)?
c)What is the slope and y-intercept of the line in part b? How do you know?
d)Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation
y = -1/2x - 4
Click here to see answer by stanbon(57940)

Question 449020: I have a 76% in my class I scored a 58 on my final which was 34% of my grade what is my over all grade ?
Click here to see answer by Alan3354(31487)

Question 449020: I have a 76% in my class I scored a 58 on my final which was 34% of my grade what is my over all grade ?
Click here to see answer by jorel1380(2518)

Question 449129: This is confusing:
The value, v, of a shopkeeper's inventory software program is given by v = -1/2t + 3, where t is the number of years since the shopkeeper bought the program. What is teh program worth years after it is frist purchased. Plot the point with the given t-value, 4.
Click here to see answer by stanbon(57940)

Question 449142: The value, v, of a shopkeeper's inventory software program is given by
v = -1/2t + 3, where t is the number of years since the shopkeeper bought the program. What is the program worth 4 years after it is first purchased.
Plot the point with the given t-value, 4.

Click here to see answer by stanbon(57940)

Question 449399: Joe received a 100 on one math test and 75 on the next. What grade does he have to receive on the next test in order to average an 85 on all three tests?
Click here to see answer by jorel1380(2518)

Question 449590: Solve by the elimination method.
7x+9y=44
5x-9y=92
What is the solution of the system, If necessary.
A. The solution is _______?
B. There are infinitely many solution.
C. There is no solution.
Click here to see answer by jorel1380(2518)

Question 449738: A student's mean score on 5 tests was 84. The student's mean score on the first 4 of these tests was 87 what was the student's score on the fifth of these tests?
Click here to see answer by ankor@dixie-net.com(15745)

Question 449759: Can you show me how to solve 6(3+4x)-7 ≥ 131?
The solution set is {x|x ≥ ?}
Click here to see answer by rfer(12726)

Question 449878: How do I graph
x=2?
Click here to see answer by stanbon(57940)

Question 449875: Please help me with this. Determine whether 2 is a solution of the inequality.
x>-2
Is 2 a solution?
*Yes?
Click here to see answer by stanbon(57940)

Question 449886: Can you show me how to solve to get a solution set?
8x ≥ 16
Click here to see answer by rwm(914)

Question 449884: Help me find the slope of: x + 2y=4
m=______?
I want to type it as a fraction.
Click here to see answer by rwm(914)

Question 449915: Can you help me solve this equation and show me how to graph?: a + 4 ≤ - 13
Click here to see answer by rfer(12726)

Question 451024: The average score of the six tests was 82. The five scores were 91,87,78,86, and 72. What was the score of the sixth test?
Click here to see answer by solver91311(17059)

Question 451024: The average score of the six tests was 82. The five scores were 91,87,78,86, and 72. What was the score of the sixth test?
Click here to see answer by rwm(914)

Question 451432: How do I solve the nonlinear equation?
f(x)=2x^2-3x

Click here to see answer by jorel1380(2518)

Question 451430: How do I solve the nonlinear equation?
y=x²-1

Click here to see answer by jorel1380(2518)

Question 451493: If my average is an 82 right now and my final is 20% of my grade. What would i need on my final to pass the class?
Click here to see answer by cwmcwilly07(5)

Question 452131: The Average (arithmetic mean) of a student's scores on 4 tests was 77. If he recieved a score of 69 on each of the first two tests and an 82 on the third, what was his score on the fourth test?
Click here to see answer by ankor@dixie-net.com(15745)

Question 452492: Decide whether the pair of lines is parallel, perpendicular, or neither.
3x+2y=8
3x+2y=4
The lines are
A. neither
B. perpendicular
C. parallel
Click here to see answer by lwsshak3(6742)

Question 452477: collect like terms.
12a+7b-5a-9b
12a+7b-5a-9b= _________
Click here to see answer by oscargut(900)

Question 452602: Solve by the elimination method.
3r-7s=-35
7r+3s=73
If necessary what is the solution of the system?
A. The solutions is ______.
B. There are infinitely many solutions.
C. There is no solution.

Click here to see answer by ankor@dixie-net.com(15745)

Question 452755: The area of a rectangular plot 32 feet long and 25 feet wide will be doubled by adding an equal width to each side of the plot. What width will accomplish this?
Click here to see answer by checkley79(3056)

Question 453105: If your test scorese average to an 85 and they are 90% of your grade and you have a 100 on particpiation and it is 10% of your grade what would your final grade be.
Click here to see answer by solver91311(17059)

Question 453471: What is the average (arithmetic mean) of 4x + 5, 7x-6,and -8x+2?
Click here to see answer by solver91311(17059)

Question 454187: Please help!!
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B traveling at 120 miles per hour. Train A passes a station at 7:20 pm If train B passes the same station at 7:35 pm at what time will train B catch up to a train A?
When will train B catch up with train A?

Click here to see answer by mananth(12270)

Question 454190: Could you please help me with these questions? Thank You
Solve.
0.5x+3<0.9x-2
The solution is {x|x??}Type an inequality symbol;then type an interger or a decimal

-26<4x-9<-2
The solution is {x|?
Click here to see answer by rfer(12726)

Question 454239: multiply then simplify each expression
1. x(2x-3)
2. (x+2)(x+7)
3. (y-2)(y+7)
4. (2m+1)(2m-1)

Click here to see answer by robertb(4012)

Question 454676: i need to get the sum of this equation
(a+b)/c=E
if i want to get sum of c?
sum of a?
sum of b?
Click here to see answer by stanbon(57940)

Question 455382: Please help. Write an equation of the line containing the given point and the parallel to the given line. Express your answer in the form y=mx+b
(7,9); x +2y =3
The equation of the line is y=

Click here to see answer by oberobic(2304)

Question 455376: Please helm me understand what the slope and y-intercept of
y=2.7x - 2 is
Thank you! The slope is 2.7, right?
Click here to see answer by Alan3354(31487)

Question 455384: I don't understand this one, can someone help me?
find the slope, if it exists, of the line containing the pair of points (2,8) and (10,10)
the slope m=
Click here to see answer by oberobic(2304)

Question 455379: I need help with this, please. Find the equation of the line having the given slope and containing the given point. Express your answer in the form x=a,y=b or y=mx + b
m= -2, (9,0)
Click here to see answer by rfer(12726)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420