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Tutors Answer Your Questions about test (FREE)
Question 47055: An arithmetic student needs an average of 70 or more to receive credit for the course. She scored 82, 64, and 98 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.
Click here to see answer by Nate(3495)  |
Question 47170This question is from textbook 
: The length of a rectangle is 4 in. more than twice its width. If the perimeter of the rectangle is 26 in., find the width of the rectangle.This question is from textbook 
Click here to see answer by pizza(14)  |
Question 49097: During a 20-SONG sequence on a popular radio station, 8 soft-rock,7 hard-rock,and 5 rap songs are played at random. You tune in to the station.
a) What is the probability that a hard rock song is playing?
b) What are the odds that a rap song is playing?
c) What is the probability that a soft-rock song or a hard-rock song is playing?
Click here to see answer by checkley71(8405)  |
Question 49697This question is from textbook 
: Subtracting: Subtract 37 from -21. The answer is -58, but I don't know why!
Subtract 19 from -7.
Subtract -25 from 9.
Subtract -31 from -5.
I need help with all of the above. If you can show the work on how you got the answer? I need to have this done by today so pleeeeeeeeeeease help me asap!This question is from textbook 
Click here to see answer by Juhi(44) |
Question 51009: Find two numbers.....
1. Whose sum is 2 and whose product is -63__________
2. Whose sum is -2 and whose product is -80__________
3. Whose sum is 4 and whose product is -60__________
4. Whose sum is -11 and whose product is 28__________
Click here to see answer by checkley71(8405)  |
Question 52418: The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is relative to (a ratio of) the weakest sound the ear can hear.
Using the Library, web resources, and other course material, research how sound is measured. Include the following items in your posting:
The formula for measuring sound.
Pick a specific sound, give the decibels of the sound, and explain what this measurement means.
Click here to see answer by stanbon(26296)  |
Question 52836: kevin has $9,300 to invest. he decides to invest a portion of ther $9,300 at 4.7% for 1 year and the rest at 5.9% each for 1 year. if the total interest amount that kevin earns is $507.90, how much was invested at 4.7% and how much was invested at 5.9%?
pleaseeeeeeeeee helpppppppppp
Click here to see answer by funmath(2873)  |
Question 55403: write the general equation form of the line which has slope 3/4 and passes
through the point(10,-2)
I am having some trouble beginning this problem...i am not sure if a chart is needed in order to graph this...please help...thank you
Click here to see answer by foleysdad(7)  |
Question 55460: suppose you are the manage of a company. your company is going to manutacture a new product. assume that the accounting department has provided you with a cost estimate: the fixed cost will be $3,198 and the variable cost $31.00
assume also that the sales department has estimates revenue sales as: revenue for each item sols: $154.00
a) write the linear function C(x) and the revenue function R(x)
b) analyze the above information and determine the break-even point for the new poduct
c) find the average cost to produce 145 units of the new product
d)find the average cost to produce 295 units of the new product.
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 58890: if an investment of $14,000 grows to $15,300 in 21 years, what is the interest rate assuming quaterly compounding.
your final answer must be in percent, accurate to 4 decimal places.
B. what is the interest rate if we use a simple interest?
your final answer must be in percent, accurate to 4 decimal places
Click here to see answer by stanbon(26296)  |
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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
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