# Questions on Algebra: Average answered by real tutors!

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 Algebra: Average Solvers Lessons Answers archive Quiz In Depth

## Tutors Answer Your Questions about Average (FREE)

 Question 364237: the president of a certain university makes as much money as one of the department heads. if the total of their salaries is \$270,000, find each worker's salary. Click here to see answer by SadieKhan(31)

 Question 365329: If there are seven test and the average is 89% what will i have to make on the next test to get a total of 90%? and can you tell me how you did it please. Click here to see answer by robertb(4012)

 Question 367014: On your first four tests you scored 80%,76%,99% and 91%. What do you have to get on the final test to average at least an 80% for the course? Click here to see answer by Fombitz(13828)

 Question 367015: You are trying to sell your used car. If you want to end up with \$5000.00, but you have to pay 4% of the selling price dut to taxes, how much should you sell the car for? Click here to see answer by nyc_function(2733)

 Question 367025: In a triangle, angle b is twice the measure of angle a, and angle c is 30 degrees less than three times the measure of angle a. Find the measure of angle a? Click here to see answer by Fombitz(13828)

 Question 365806: what is the common denominator of 8/12 & 24/36 Click here to see answer by Fombitz(13828)

 Question 367045: On Tuesday, 20 of the 25 students in an algebra class took a test and their average was 86. On Wednesday, the other 5 students took the test, and their average was 81.What was the average for the entire class? (A) 81.8 (B) 82 (C) 83.5 (D) 85 (E) 87 Click here to see answer by mananth(12270)

 Question 367031: I need to factor the following: 13 + 39x Click here to see answer by mananth(12270)

 Question 367083: p: The average of x, y, and 8 is 5. q: The sum of x and y is 8. Based on statements p and q above, which of the following must be true for all values of x and y? I. If p is true, then q is true. II. If p is true, then q is not true. III. If p is not true, then q is true. (A) I only (B) II only (C) III only (D) II and III only (E) I, II, and III Click here to see answer by Jk22(389)

 Question 367027: Order the folowing from least to greatest: -3/8, -1, 7/5, 1/3, -8/6, 8/6, 99/100. Click here to see answer by Jk22(389)

 Question 367469: I need to factor the following: 12x -6y +3 Click here to see answer by Fombitz(13828)
 Question 367469: I need to factor the following: 12x -6y +3 Click here to see answer by edjones(7569)

 Question 367473: Order the following from least to greatest: =3/8, -1, 7/5, 1/3, -8/6, 8/6, 99/100 Click here to see answer by edjones(7569)

 Question 367721: How would you graph this line using the slope-intercept method. y = negative 1 over 6x + 5 –x + 6y = 30 Click here to see answer by Fombitz(13828)

 Question 367826: If a + b = 7(c + d), which of the following is the average (arithmetic mean) of a, b, c, and d? Click here to see answer by Fombitz(13828)

 Question 367936: If I scored an average of 88% on 3 tests which count for 75% of my overall grade and I scored 95% on all my labs which count 25% towards my overall grade, assuming I have 1 more test and no more labs, what do I need to score on that final test to have an overall score of 91% Click here to see answer by scott8148(6628)

 Question 368115: 2^x-2^(-x)=4 Click here to see answer by Alan3354(31518)

 Question 368219: Tell whether the equation is linear. If so, write the equation in standard form and give the values of A, B, and C. 2x = y/3 - 4 Click here to see answer by mananth(12270)

 Question 368244: Tell whether this function is linear. If so, graph the function. 5 + 3y = 8 Click here to see answer by robertb(4012)
 Question 368244: Tell whether this function is linear. If so, graph the function. 5 + 3y = 8 Click here to see answer by mananth(12270)

 Question 368238: One inch is equal to approximately 2.5 centimeters. Let x represent inches and y represent centimeters. Write an equation in standard form relating x and y. Give the values of A, B, and C. Click here to see answer by mananth(12270)

 Question 368471: 6^2 - (1/2)^3 ------------- 7/8 + 5/12 Click here to see answer by Fombitz(13828)

 Question 368607: Tom has taken 5 of the 8 equally weighted tests in his U.S. History class this semester, and he has an average score of exactly 78.0 points. How many points does he need to earn on the 6th test to bring his average score up to exactly 80.0 points? Click here to see answer by scott8148(6628)

 Question 368631: John recieved three tests. His scores were 90,95 and 92. What does he need to get on his next test to have an average of 93? Click here to see answer by rfer(12730)

 Question 368815: Find the x- and y- intercepts. -2y + x = 2y - 8 Click here to see answer by fractalier(2101)

 Question 368828: Which is the x-intercept of -2x = 9y - 18. a. -9, b. -2, c. 2, d. 9. Click here to see answer by mananth(12270)

 Question 368825: For any linear equation, Ax + By = C, what are the intercepts? Click here to see answer by fractalier(2101)
 Question 368825: For any linear equation, Ax + By = C, what are the intercepts? Click here to see answer by mananth(12270)

 Question 368820: A bamboo plant is growing 1 foot per day. When you first measure it, it is 4 feet tall. Write an equation to describe the height y, in feet, of the bamboo plant x days after you measure it. What is the y-intercept? What is the meaning of the y-intercept in this problem? Click here to see answer by mananth(12270)

 Question 369243: What is the graph equation of y=x+4.my teacher hasnt taught us this yet and i hav a ruff time solving it. Click here to see answer by lkellhomes(6)

 Question 369370: Find the area of the triangle formed by the x-axis, the y-axis, and the line described by y = 6 - x. Click here to see answer by acalgebra(30)

 Question 369374: Daniel ran 2 miles in 12 minutes. What was his average speed using the formula s=d/t? Click here to see answer by acalgebra(30)

 Question 369510: if you have 405 apples what will be a 5% increase Click here to see answer by Alan3354(31518)

 Question 369651: Hi. I hope you can help me. This is for 10th grade regents math homework. Here is the quesion. "Through a given point P, on a plane, how many planes can be drawn that are perpendicular to that plane?" A) 1 B) 2 C) infinitely many D) none Please email the answer to me and if you can explain how you got it. Thanks :) Click here to see answer by edjones(7569)

 Question 369810: Find the x- and y- intercepts. y = -3x - 9 Click here to see answer by robertb(4012)

 Question 369822: Find the slope of the graph with the ordered pairs 4,2 and -2,-1. Click here to see answer by robertb(4012)

 Question 369793: The Lookout Mountain Incline Railway in Chattanooga, Tennessee, is the steepest railway in the world. A section of the railway has a slope of about 0.73. In this section, a vertical change of 1 unit corresponds to a horizontal change of what length? Round the answer to the nearest hundredth. Click here to see answer by neatmath(300)

 Question 369952: how can you graph a line with slope 0 - explain Click here to see answer by rfer(12730)

 Question 370018: If i score 99 on my first test and 85 on my second, what do I need to get on my third test in order to get an overall average of 90? Click here to see answer by mananth(12270)

 Question 370356: a canal boat travels 6 miles in 1 hr 30 mins. what is the average speed of the boat? give your answer in miles per hour. Click here to see answer by mananth(12270)

 Question 371317: Liz has scores of 74 and 82 on her first two algebra tests. What must she score on her third test so that her average is at least 80? Click here to see answer by ewatrrr(10682)

 Question 371474: Find the slope of the line described by the equation. 7 - 3y = 9x Click here to see answer by Aust05(12)

 Question 371664: Find the slope ( both x and y )of the line described by this equation: 7 - 3y = 9x Click here to see answer by Fombitz(13828)

 Question 371755: find the value of x so that the points lie on a line with the given slope: (1,-3) and (3,x), m = -1 Click here to see answer by robertb(4012)

 Question 371749: find the slope of a line that contains each pair of points: (2x,y)and (x,3y) Click here to see answer by Alan3354(31518)

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