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Question 1132431: in the problem,
A school concert usually attracts 600 people at a cost of $10 per person.
On average for every $1 rise in admission price, 50 less people attend the concert.
If T is the total amount of takings and n is the number of $1 increases write a rule for the function which gives T in terms of n.
why is the The equation:
T(n) = (600-50n)*(10+n)
what is the reason and is the function continuous or not? why?
Click here to see answer by MathLover1(20849)   |
Question 1132495: 3. Anne and Stella both worked hard over the summer. Together, they earned a total of $345. Anne earned $35 more than Stella. How much did each of them earn?
(a) Write a system of two equations with two variables to model this problem.
(b) Use substitution or the elimination method to solve the system.
(c) Graph both equations.
(d) Answer the question.
Click here to see answer by MathLover1(20849) |
Question 1132494: 2. Suppose you pay $55.00 for a backpack that has been discounted 15%. What is the original price of the backpack to the nearest cent? Show how you identify what you are looking for, set up a proportion, arrive at your answer, and check your work. Then clearly state your answer.
Click here to see answer by MathLover1(20849) |
Question 1132493: 1. The length of a rectangle is 8 mm longer than its width. Its perimeter is more than 32 mm. Let w equal the width of the rectangle.
(a) Write an expression for the length in terms of the width.
(b) Use expressions for the length and width to write an inequality for the perimeter, on the basis of the given information.
(c) Solve the inequality, clearly indicating the width of the rectangle.
Click here to see answer by addingup(3677)  |
Question 1132517: The general expression for consecutive multiples of seven 7n, 7(n+1), 7(n+2)where n is some unspecified integer. Find three consecutive multiples of seven such that the product of -3 and the sum of the first and third is 21 less than five times opposite of a second.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1132579: The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day, 356 people entered the park, and the admission fees collected totaled 1,034.00 dollars. How many children and how many adults were admitted?
Click here to see answer by josmiceli(19441)  |
Question 1132577: You are choosing between two different cell phone plans. The first plan charges a rate of 18 cents per minute. The second plan charges a monthly fee of $49.95 plus 8 cents per minute. How many minutes would you have to use in a month in order for the plans to cost the same? If necessary round to four decimal places.
Click here to see answer by josmiceli(19441) |
Question 1132575: The admission fee at an amusement park is 1.5 dollars for children and 4 dollars for adults. On a certain day, 382 people entered the park, and the admission fees collected totaled 1048 dollars. How many children and how many adults were admitted?
Click here to see answer by josgarithmetic(39617) |
Question 1132576: You are offered two different sales jobs. The first company offers a straight commission of 6% of the sales. The second company offers a salary of $ 460 per week plus 3% of the sales. How much would you have to sell in a week in order for the straight commission offer to be at least as good?
Click here to see answer by MathLover1(20849) |
Question 1132566: The manager of the video department at a department store plans to purchase a large number of DVDs of a recent movie. One supplier is selling boxes of 20 DVD movies for $230, and a second supplier is selling boxes of 10 DVD movies for $180. Only complete boxes of DVD movies can be purchased.
a) If the manager can purchase boxes of DVD movies from either or both suppliers, determine the maximum number of DVD movies that can be purchased for $415. Indicate how many boxes of 20 and how many boxes of 10 will be purchased
b) How much will the DVD movies cost?
Click here to see answer by greenestamps(13200)  |
Question 1132587: a research institute that the average number of weeks an individual is unemployed is 17.5 weeks.assume that for the population of all unemployed individuals the population mean is 17.5 weeks and that the population standard deviation is 4 weeks. suppose you would like to select a random of 50 unemployed individuals for s follow up study
Click here to see answer by ikleyn(52781)  |
Question 1132747: Betsy, a recent retiree, requires $5,000 per year in extra income. She has $60,000 to invest and can invest in B-rated bonds paying 13% per year or in a certificate of deposit (CD) paying 5% per year. How much money should be invested in each to realize exactly $5,000 in interest per year? What is the amount at 13% and 3%?
Click here to see answer by solver91311(24713)  |
Question 1132747: Betsy, a recent retiree, requires $5,000 per year in extra income. She has $60,000 to invest and can invest in B-rated bonds paying 13% per year or in a certificate of deposit (CD) paying 5% per year. How much money should be invested in each to realize exactly $5,000 in interest per year? What is the amount at 13% and 3%?
Click here to see answer by ikleyn(52781) |
Question 1132768: Each day Sam the dog drinks half of the water remaining in his bowl. His owner then adds 200 ml to the bowl.there was 500 ml of water in the bowl at the end of Thursday. How much water was in the bowl at the start of Wednesday
Click here to see answer by josmiceli(19441) |
Question 1132773: A worker deposits the proceeds from a bonus in
an account that earns an annual simple interest
rate of 5%. The worker leaves the money in the
account for 10 years without adding or withdrawing
money. Is the amount of interest earned in the eighth
year less than, equal to, or more than the amount of
interest earned in the fourth year
Click here to see answer by greenestamps(13200) |
Question 1132773: A worker deposits the proceeds from a bonus in
an account that earns an annual simple interest
rate of 5%. The worker leaves the money in the
account for 10 years without adding or withdrawing
money. Is the amount of interest earned in the eighth
year less than, equal to, or more than the amount of
interest earned in the fourth year
Click here to see answer by MathTherapy(10552)  |
Question 1132776: Hi! I’m looking over videos and my math notes and the problem and the videos and notes are not making sense to me at all. The question is: given the following information, create a stem and leaf plot for the following tests scores.
62 73 83 90 85 76 86 76 60 61 58 58 73 73 83 84 85 86 90 91 92 55 56 83
Thank you I appreciate any help. I’m just very confused. Thanks!
Click here to see answer by Theo(13342)  |
Question 1132776: Hi! I’m looking over videos and my math notes and the problem and the videos and notes are not making sense to me at all. The question is: given the following information, create a stem and leaf plot for the following tests scores.
62 73 83 90 85 76 86 76 60 61 58 58 73 73 83 84 85 86 90 91 92 55 56 83
Thank you I appreciate any help. I’m just very confused. Thanks!
Click here to see answer by rothauserc(4718)  |
Question 1132821: A tower with a height of 27 M stands at the top of the Cliff. From the top of the tower the angle of depression of a Guard house is 56 degree. From the foot of the tower, the angle of depression of the same guard house is 49 degree. Find,
i) The distance between the base of the Cliff and guardhouse
ii) height of the cliff (WTH DIAGRAM) :)
Click here to see answer by josgarithmetic(39617) |
Question 1132830: Hi again! The notes my professor gave me are sorta helpful but I’m no quite understanding it. The question is:
In a class of 24 students, if the mean on a 100 point test is 77, is it possible that 18 students got a score of 55 or below?
Thank you in advance :)
Click here to see answer by Theo(13342) |
Question 1132927: Higher education. The table lists thje average costs of attending a four year college in the U.S. during the 2005-2006 school year
College Sector Tuition and fees room and board
1-year public $5941 $6636
1-year private $21,235 $7,791
Russ's parents invested money to a savings account earning an average of 4.5 percent interest, compounded monthly.
After 15 years they have exactly the right amount to cover the tuition, fees, room, and board for Russ's first year at a public college. What was their initial investment? Round your answer to the nearest dollar.
What I tried:
One year in public is 5941+6636=12577
I plugged into the compound interest formula: A=P(1+(r/n))^nt which is
12577=P(1+0.045/12)^12(5)
12577=P(1.00375)^60
12577=1.2517958205P
10031 is about P
I think I did something wrong, as the answer doesn't make sense.
Thanks
Click here to see answer by addingup(3677) |
Question 1132933: In a certain year, 34% of adults in a certain country viewed a college education as essential for success. For the following ten-year period, this percentage increased by approximately 1.6 each year. The percentage of adults from this country who viewed a college education as essential for success x years after the first year can be represented by ________.
Click here to see answer by Theo(13342) |
Question 1132946: ln a certain school,there are 50 pupils studying both basic mathematics and additional mathematics.The school regulation required that an additional mathematics must come from basic mathematics class in the school.10 students do not study basic mathematics.If only 100 pupils study basic mathematics but not additional mathematics,
1.How many people are in the school?
2.How many people study other basic mathematics not additional?
3.How many people study additional mathematics?
Click here to see answer by ankor@dixie-net.com(22740) |
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