Questions on Algebra: Average answered by real tutors!

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Question 615393: what is average of 1/2, 2/5, 3/4, 4/5?
Click here to see answer by jsmallt9(3296)

Question 615709: y=-(x+2)^2+2?
I don't understand the question mark at the end or how to solve.
Click here to see answer by Edwin McCravy(8999)

Question 616007: If I have an 80 in the class and the final exam is worth 15% what is the lowest grade I could get to keep my 80? Isn't it below 80 like can it be a 79?
Click here to see answer by stanbon(57967)

Question 616637: marys avrage in 3 tests is 55.in 4 tests is 65.after 2 other tests her average mark is 55.find the average in the 2 other tests.
Click here to see answer by lwsshak3(6761)

Question 616666: if i got 18 wrong on a test i took and there are 50 questions. whats my score in percentage ? like do i get a 64% ?? because i divided and then multiplied .. i dont know ... can you help me please.
Click here to see answer by rfer(12730)

Question 616679: if a student has scores of 76,95,71, and 72 and she wants to have 75% grade for the semister what would be the minuim grade she can get if she took her last quiz
choices
A-61
B-65
C-92
D-93
Click here to see answer by solver91311(17077)

Question 616693: A student scores 70 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 78?
Click here to see answer by solver91311(17077)

Question 616940: if i get 94 on the last semester and i get a 62 on the last exam, whats my final average?
Click here to see answer by solver91311(17077)

Question 617175: If i have a 76 in a class and the final is 15% of the grade and i make a 79, what would my final grade be?
Click here to see answer by scott8148(6628)

Question 617739: A student has a D+ in a class. His final is worth 20% of his grade. What would he need to get to bring his grade up to a B-
Click here to see answer by solver91311(17077)

Question 617752: Test scores of 90, 74, 82, and 90. Next test final will count as two tests. What score do I need on final to produce an average of 85?
Click here to see answer by scott8148(6628)

Question 617754: I=prt; solve for r
Click here to see answer by stanbon(57967)

Question 617868: I have a test with 78 questions if i get 65 questions right how much percentage do i have right?
Click here to see answer by IFY(62)

Question 617734: How to expand (-6k+3)[-3k+2k-8]
Click here to see answer by IFY(62)

Question 617900:
Loretta bought a DVD player for $77. She bought the DVD player on sale for 30% off the original price. What was the original price of the DVD player?

Click here to see answer by richwmiller(9144)

Question 618391: What is my final grade average if i have a 64 in my math class and got a zero on the exam that was worth 10%..also could you include the steps you took so i can calculate my other classes too.
Click here to see answer by dragonwalker(72)

Question 618489: Sally- sue earned an 84,69,87,83 and 94 on her first five tests. What is the lowest grade Sally-Sue can earn on her sixth and final test in order for her average to be at least 85%.
Click here to see answer by scott8148(6628)

Question 618635: Direct and Indirect Variation. I do not understand how to solve this or any problems such as these.
y varies directly with x. y =15 when x=4. what is the value of y when x=5
or y varies inversely with x y=8 when x=8. what is the value of y when x=4
Click here to see answer by richwmiller(9144)

Question 618691: In a certain game, to determine how many spaces to move, a player selects a card from pile A and another card from pile B. If the player then moves a number of spaces equal to the sum of the two cards selected, how many different possible moves are there?
A B
1 2 3 4 5 6
A)5
B)6
C)7
D)8
E)9
Click here to see answer by ewatrrr(10682)

Question 618700: On a certain street, the houses on the west side have consecutive odd numbers and those on the east side have consecutive even numbers. If only the houses on the east side with numbers 122 through 182 are painted blue, how many houses on the street are painted blue?
A)120
B)60
C)59
D)31
E)30
Click here to see answer by ewatrrr(10682)

Question 618698: At Glenridge High School, 20 percent of the students are seniors. If all of the seniors attended the school play, and 60 percent of all the students attended the play, what percent of the non-seniors attended the play?
A)20%
B)40%
c)50%
D)60%
E)100%
Click here to see answer by ewatrrr(10682)

Question 618780: to get a B in math,a student must score an average of 80 on five tests. On the first four tests, the scores were 75, 90, 73, and 75. What is the lowest score that the student can get on the last test and still get a B?
Click here to see answer by ewatrrr(10682)

Question 618826: the mass of one methane molecule is 2.7 X 10^-23. find the mass of 70,000 molecules of methane and express the answer inn scientific notation

Click here to see answer by Alan3354(31519)

Question 618831: find a rational number halfway in between the two numbers
7/9 and 2/5. please help
Click here to see answer by solver91311(17077)

Question 618834: each day we purchase 660 thousand ice cream cones per hour. use the fact that there are approximately 8.8 X 10^3 hours in a year to approximate how many ice cream cones are purchased in one year. Write the answer in scientific notation. Please help.
Click here to see answer by Alan3354(31519)

Question 618830: express the given repeating decimal as a quotient of integers. If possible reduce to lowest terms 0.92 (the 92 has a line over it)Please help I have been trying to do this over and over.
Click here to see answer by Alan3354(31519)

Question 618854: I have an 85% in my class. My Final exam is worth 20% of that final grade. I scored a 70% on the Final. What will my overall grade be in the class?
Click here to see answer by nerdybill(7003)

Question 619128: A study group made of six students has a combined test average of 92. What woud a seventh students average need to be to bring the study groups's average up to 93?

Click here to see answer by user_dude2008(1861)

Question 619231: A total of 50 juniors and seniors were given a mathematics test. 35 juniors attained an average score of 80 while the 15 seniors attained an average of 70. what is the average score of all 50 students who took the test?
Click here to see answer by Theo(3504)

Question 619236: What is x-46 ≥-79
more than one answer please
options
-25
33
25
14
-45
-39
Click here to see answer by Theo(3504)

Question 619350: “student must have an average(the mean) on five tests that is greater than or equal to 80% but less than 90% to recieve a final grade of a B Devons grades on the first four tests were 76%,65%,90%, and 80%What range of grades on the fifth test would give him a B in the course?
Click here to see answer by ewatrrr(10682)

Question 619862: If i have an 82 average in my math class and i get a 100 on my final which counts for 25 percent of my grade what will my average be?
Click here to see answer by Alan3354(31519)

Question 619915: I got an 88% on a test with 124 questions, equally weighted. How many did I get wrong?
Thanks!
Click here to see answer by jim_thompson5910(28715)

Question 620154: hi my averages where 69.33 72 62 and 53 how do get an average for 4 terms
Click here to see answer by stanbon(57967)

Question 589710: -Royer Corporation engaged in this transaction:
Purchased land and building with a mortgage.
Indicate which section, if any, the above transaction would appear in, or relate to, on a statement of cash flows.
a. Financing activities section
b. Operating activities section
c. Investing activities section
d. Schedule of noncash investing and financing transactions

-Royer Corporation engaged in this transaction:
Received interest on an investment in a long-term note.
Indicate which section, if any, the above transaction would appear in, or relate to, on a statement of cash flows.
a. Financing activities section
b. Does not represent a cash flow
c. Operating activities section
d. Investing activities section

-Royer Corporation engaged in this transaction:
Converted loans payable to stock.
Indicate which section, if any, the above transaction would appear in, or relate to, on a statement of cash flows.
a. Financing activities section
b. Schedule of noncash investing and financing transactions
c. Investing activities section
d. Operating activities section

Click here to see answer by lock817(1)

Question 620651: Someone I know is wondering if they have a 78% average and recieve a 60% on their final worth 20% of their final grade, what will their final grade be?

Click here to see answer by nerdybill(7003)

Question 620665: Y varies directly with X;
Y=3150 when X=0.4
Find the constant variation
Click here to see answer by nerdybill(7003)

Question 620664: Y varies directly with X;
Y=18.5 when X= 74.
What is the constant variation?
Click here to see answer by nerdybill(7003)

Question 620683: Going into a 15% of overall grade final I have 7
9%. I had 64% on the final. What is my grade now
Click here to see answer by jim_thompson5910(28715)

Question 620720: The averages in a class are 87,89,91,93,83,92,71,86,93, and 75. Suppose the professor assigns grades using the method shown below. Averages on the border are assigned the higher grade.
A: averages that are at least 1.5 standard deviations above the mean.
B: averages that are between .5 standard deviations above the mean, and 1.5 standard deviations above the mean.
C: Averages that are between .5 standard deviations below the mean, and .5 standard deviations above the mean.
D: averages that are between 1.5 standard deviations below the mean, and .5 standard deviations below the mean.
F: averages that are more than 1.5 standard deviations below the mean.
What grade does the person earning the 93 get?
Click here to see answer by lynnlo(4169)

Question 621159: if i have 6 questions wrong on a 60 question test what is my score in a percentage out of 100?
Click here to see answer by jim_thompson5910(28715)

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