Tutors Answer Your Questions about Proportions (FREE)
Question 1134569: the electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d obtain an equation. connecting R, L and d if R =27 when 1=3 and d =2,
calculate the (a)value of R. when L=8 and d=3(b) values of d when .R=16 and L=18
Click here to see answer by Alan3354(69443)   |
Question 1134570: the electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d obtain an equation. connecting R, L and d if R =27 when 1=3 and d =2,
calculate the
A. value of R. when L=8 and d=3
B. values of d when .R=16 and L=18
Click here to see answer by Alan3354(69443) |
Question 1134557: the electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d obtain an equation. connecting R, L and d if R =27 when 1=3 and d =2, calculate the
(a)value of R. when L=8 and d=3
(b) values of d when .R=16 and L=18
Click here to see answer by josgarithmetic(39616) |
Question 1134557: the electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d obtain an equation. connecting R, L and d if R =27 when 1=3 and d =2, calculate the
(a)value of R. when L=8 and d=3
(b) values of d when .R=16 and L=18
Click here to see answer by josmiceli(19441)  |
Question 1134559: the number of students in a lecture room is inversely proportional to the square root of the number of lectures in a class of 30 students
there were 25 lectures. what is the evaluation connecting the students and the lectures. find the number of lectures that will be involved when there were 50students
Click here to see answer by Boreal(15235)  |
Question 1134682: An ice cream cone has a scoop of ice cream that is a half-sphere on top. what is the volume of the whole ice cream cone with the ice cream? height is 14 in and radius 9 in. use 3.14 for pi. Round to the nearest tenth. Please and thank you.
Click here to see answer by mathsolverplus(88)  |
Question 1134751: Seismographs can record two types of wave energy (P waves and S waves) that travel through the Earth after an earthquake. Traveling through granite, P waves travel approximately 5 km/sec and S waves travel approximately 3 km/sec. If a geologist working at a seismic station measures a time difference of 40 sec between an earthquake's P waves and S waves, how far from the epicenter of the earthquake is the station?
Click here to see answer by rothauserc(4718)  |
Question 1134751: Seismographs can record two types of wave energy (P waves and S waves) that travel through the Earth after an earthquake. Traveling through granite, P waves travel approximately 5 km/sec and S waves travel approximately 3 km/sec. If a geologist working at a seismic station measures a time difference of 40 sec between an earthquake's P waves and S waves, how far from the epicenter of the earthquake is the station?
Click here to see answer by ikleyn(52776)  |
Question 1134835: A and B contribute $140000 and $180000 respecrively in a business partnership. Of the profit, A receives 20% as manager and the rest is shared in the ratio of their capitals. What is the ratio of A's total share of the profit to B's?
Click here to see answer by Theo(13342)  |
Question 1135064: A property owner listed his property for 160% more than he paid for it. The owner eventually accepted an offer 12.5%
below his asking price and sold the property for $191 comma 100. How much did the owner pay for the property?
Click here to see answer by Theo(13342) |
Question 1135097: A stock index was $14 comma 548.26 on November 5, 2014, and $13 comma 558.78 on November 5, 2015. Tim holds an investment portfolio representative of the stocks in the index. If the value of the portfolio on November 5, 2014, was $222 comma 304, what was the value of the portfolio on November 5, 2015?
Click here to see answer by ikleyn(52776) |
Question 1135148: A stock index was $14,548.26 on November 5, 2014, and $13,558.78 on November 5, 2015. Tim holds an investment portfolio representative of the stocks in the index. If the value of the portfolio on November 5, 2014, was $222,304, what was the value of the portfolio on November 5, 2015?
Click here to see answer by ikleyn(52776) |
Question 1135354: Suhami Chadhuri has a four-ninths interest in a partnership. She sold
three-elevenths of her interest for $2600.
(a) What was the total amount of Ms. Chadhuri's interest before selling?
(b) What is the value of the partnership?
Click here to see answer by josmiceli(19441) |
Question 1134834: Costa starts a company with $2,400,000. After 6 months, he is joined by Luiz, who contributes $3,000,000 in capital. Two months later Costa and Luiz are joined by Paul, who contributes $3,300,000. Of the profit accruing a year after Costa had started operations, Costa receives 20% as manager and Paul receives 4% as assistant manager. The remaining profits are then shared in the ratio of the product of their holding in the company and the time elapsing since each of them joined the company. If the profit at the end of the first year was $1,050,000, calculate the total amount received by each of the three partners in the company.
Click here to see answer by VFBundy(438)  |
Question 1135655: 450 tickets were sold at an opera in Calgary. Tickets for adults were sold for $9.50 each and tickets for children were sold for $5.50 each. If a total of $3,675 was collected from ticket sales, how many tickets of each kind were sold?
Click here to see answer by ikleyn(52776) |
Question 1135654: Company A charged a one-time setup fee of $40 and $1.25 per page to print a book. Company B charged a one-time setup fee of $25 and $1.30 per page to print a book.
(a) Where would it have been cheaper to print a book that has 160 pages?
(b) How many pages should a book have for both companies to charge the same amount in printing cost?
Click here to see answer by josgarithmetic(39616) |
Question 1135654: Company A charged a one-time setup fee of $40 and $1.25 per page to print a book. Company B charged a one-time setup fee of $25 and $1.30 per page to print a book.
(a) Where would it have been cheaper to print a book that has 160 pages?
(b) How many pages should a book have for both companies to charge the same amount in printing cost?
Click here to see answer by josmiceli(19441) |
Question 1135652: Anna invested a total of $10,000 in Funds A and B. The amount in Fund A earned an interest of 4% per annum and the amount in Fund B earned an interest of 5% per annum. If the total interest earned from both these funds at the end of one year was $470, how much did she invest in each fund?
Click here to see answer by ikleyn(52776) |
Question 1135652: Anna invested a total of $10,000 in Funds A and B. The amount in Fund A earned an interest of 4% per annum and the amount in Fund B earned an interest of 5% per annum. If the total interest earned from both these funds at the end of one year was $470, how much did she invest in each fund?
Click here to see answer by greenestamps(13198)  |
Question 1136307: It takes Earl 2 hours to paint a fence. It would take 3 hours for Ted to paint a same fence. If Earl and Ted work together to paint half the fence, then Earl leaves and Ted paints the rest of the fence by himself, how long would it take in total for the fence to be painted>
Click here to see answer by josmiceli(19441) |
Question 1136304: Students Arn, Bob, Cyd, Dan, Eve, Fon are arranged in that order in a circle. They start counting. Arn first, then bob and so forth. When the number contains a 7 as a digit (such as 47) or is a multiple of 7 that person leaves the circle and the counting continues. Who is the last one present in the circle?
Click here to see answer by ikleyn(52776) |
Question 1136534: An even number is chosen randomly from a set of cards labeled with the
numbers 1 through 8. A second even number is chosen without the first
card being replaced. Are these independent or dependent events? What is
the probability of both events occurring?
Click here to see answer by rothauserc(4718) |
Question 1136933: Steve produced 45 liters of apple juice in one day of pressing. After drank some of it, he thought it was to strong tasting. So he removed 9 liters of apple juice and replaced it with 9 liters of water. After a second taking, he found it still to strong, so he removed another 9 liters and added 9 liters of water. Determine the ratio of apple juice to water in his final mixture.
Click here to see answer by addingup(3677)  |
Question 1137719: The power, P (watts), of a car engine is proportional to the square of its speed, k (m/s).
When k=35, P=2200.
Work out the power (to 1DP) when the speed is 40m/s
Please could you help me with this question. I have tried but I just really do no understand it. When I tried I got the answer of 0.6 watts. The site called Hegartymaths told me that it was incorrect and the video it comes with is not very understandable for me.
Thank You.
Click here to see answer by MathLover1(20849)  |
Question 1138002: This is my child's homework. Would appreciate your help. They use proportions to solve percent word problems so if you could please provide a solution using proportions, it will be easier for him to understand. Thank you in advance.
An appliance store sold a refrigerator for $775. The sale price was 25% off after an instant rebate of $25.00. What was the original price of the refrigerator?
Click here to see answer by math_helper(2461)  |
Question 1138002: This is my child's homework. Would appreciate your help. They use proportions to solve percent word problems so if you could please provide a solution using proportions, it will be easier for him to understand. Thank you in advance.
An appliance store sold a refrigerator for $775. The sale price was 25% off after an instant rebate of $25.00. What was the original price of the refrigerator?
Click here to see answer by josgarithmetic(39616) |
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