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Question 647277: Formula for the lateral surface area of a cylinder. SA=2(pi)rh, solve for r
Click here to see answer by colliefan(239)

Question 647189: Latisha earned an 85% today. Her previous scores were 72%, 89%, 90%. What is her average?
Click here to see answer by colliefan(239)

Question 647863: Charlie must take four exams in his finite math class. His scores on his first three exams are 91, 77, and 83. What must he score on his fourth exam if he wants his overall mean to be at least 80?
Click here to see answer by stanbon(57219)

Question 647905: Simplify (x2 + x + 1) • (x -1)
Click here to see answer by Algebraic(50)

Question 647896: We use the word "and" the symbol ∩ ("cap") to get only those elements that are in one set and are in the other set.
For the following combination of sets, perform the indicated operations: { 1, 3, 5, 7 } ∩ { 2, 4, 6, 8 }
Click here to see answer by MathLover1(6614)

Question 647904: Simplify (x + y)2 + (x - y)2 - 2(x2+y2)
Click here to see answer by rfer(12644)

Question 647899: We use the word "or" or the symbol ∪ ("cup") to get all the elements that are in one set or the other or both.
For the following combination of sets, perform the indicated operations: { 1, 3, 5, 7 } ∪ { 2, 4, 6, 8 }
Click here to see answer by MathLover1(6614)

Question 648088: Hi. Im in Accelerated Algebra 2 w/ Trigonometry and I was wondering how would you solve or what are the steps in solving this problem:
The average of 5, x, 10, and 13 is at least 9. Find x.
I looked in notes in the past and I noticed that there were no problems that were done in the past that looked like this or were somewhat similar. So if you could please show me a different example or help me through the steps before today ends it would benifit me greatly. Thank you!
Click here to see answer by Earlsdon(6287)

Question 648531: For the following combination of fractions, perform the arithmetic, remove improper fractions and reduce to lowest terms:
((1/2)*(3/4))/(1/6)
Click here to see answer by lynnlo(4155)

Question 648585: Ricardo’s scores on the first four exams in his algebra class were 66, 81, 75, and 78. What is the minimum score on the fifth exam so that his mean score for the five exams is 80 or more?
Click here to see answer by lynnlo(4155)

Question 648591: In a bag of M&M’s there are 12 green, 7 blue, 11 brown, 9 orange, and 15 red candies. If one candy is chosen from this class at random, what is the probability that the selected candy will be green or orange?
Click here to see answer by MathGeek87(9)

Question 648777: You earned a 90 and an 82 on your first two essays
in English class. What score, represented by the variable s,
do you need to earn on your third essay to have an average of
84 or greater?

Click here to see answer by rfer(12644)

Question 649674: If my average grade is an 65 and I made a zero on one of my finals which is 15% of my grade, what is my grade now? then, from this answer .....whatever my grade is now and I took another test and made an 84 which is 20% of my grade what is my official grade now?
Click here to see answer by swincher4391(726)

Question 649715: Whats the median of these numbers? 84,85,88,89,82,78,82
Click here to see answer by sheldonbbtrocks(53)

Question 650015: if i got 83% on my test how do i find out how much i got right and how much i got wrong?

Click here to see answer by jim_thompson5910(28476)

Question 650449: what numbers can you use to get a mean of 83 and a median of 85?
Click here to see answer by MathLover1(6614)

Question 650832: find the average of 72,88 and 95

Click here to see answer by ewatrrr(10682)

Question 650835: How do I find the average of the list of numbers
1/12 and 1/6 (simplified)
Click here to see answer by ewatrrr(10682)

Question 650841: how many meters are in 83 yards?

Click here to see answer by ewatrrr(10682)

Question 650854: How do I find the average of the list of numbers?
3/4, 5/12, and 17/36 (simplified)
Click here to see answer by ewatrrr(10682)

Question 650852: How do I find the average of the list of numbers?
3/4, 5/12, and 17/39 (simplified)
Click here to see answer by Alan3354(30959)

Question 650822: the number 0.0008 is equilvalent to the ratio to 8 to what number?
Click here to see answer by rfer(12644)

Question 651253: 90% of what number is 63
Click here to see answer by rfer(12644)

Question 651368: a student scores 82%,86% and 78% on her three exams. What score is needed on the fourth exam for the student to have an average of 85% for all four exams ?
Click here to see answer by ewatrrr(10682)

Question 651819: Gina got 48 out of 54 on her math test. What was her mark as a percentage?
Click here to see answer by nerdybill(6948)

Question 651980: kim had 78, 82, and 64 on her first three tests. What would be the lowest possible average on the next three exams so that Kim's grade in the class, based on the average of six exams, is a least 80?
How can I set up an algebraic equation and please show you came to a solution.
Click here to see answer by rfer(12644)

Question 652106: M=1/3(x+y+z) Find the average of the numbers 34,56 and 60
Click here to see answer by MathLover1(6614)

Question 652301: how do you do this problem? "78 is 30% of what number?"
Click here to see answer by rfer(12644)

Question 653375: The average score on 7 tests in Algebra was 79. What was the sum of all the scores?
a.500
b.553
c.663
d.700
e.none of the above
Click here to see answer by solver91311(16868)

Question 653375: The average score on 7 tests in Algebra was 79. What was the sum of all the scores?
a.500
b.553
c.663
d.700
e.none of the above
Click here to see answer by Shana-D77(122)

Question 653557: 47-8x by replacing x with 5
Click here to see answer by ShockingMan(1)

Question 653558: Aura took three biology exams and has an average score of 89. Her second exam score was 6 points better than her first, and her third exam score was 6 points better than her second exam. What were her three exam scores?
Click here to see answer by lynnlo(4155)

Question 654014: The mean of 22, 19,25, and x is 23. Find x.
Click here to see answer by solver91311(16868)

Question 654014: The mean of 22, 19,25, and x is 23. Find x.
Click here to see answer by ewatrrr(10682)

Question 654009: Ken received grades of 90,88,and 75 on three tests. What grade must he receive on the next test
so that his average for these four tests is 85?
Click here to see answer by checkley79(3039)

Question 654044: Shelby made a list of her test scores: 88,100,92,80,85,94,90. What is the lowest score she can get on her next test to have a mean score of 90?
Click here to see answer by solver91311(16868)

Question 654049: 9(2x-6)=3(6x+8)
Click here to see answer by jim_thompson5910(28476)

Question 654056: AVERAGE RATE OF CHANGE for g(x)=-9/x when x=-3 and x=-3+h
Click here to see answer by solver91311(16868)

Question 654136: What is the formula to calculate pieces per hour? Say you have 1026 packages 9 people working what is the pieces per hour they are producing?
Click here to see answer by solver91311(16868)

Question 654170: How would I calculate what the pieces per hour are if I had 2097 pieces produced with 9 people working for 2 hours (120 min)
Click here to see answer by ankor@dixie-net.com(15624)

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