Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)
Question 388109: A phone company charges a different rate for a local call than a long distance call. a local call will cost $o.15 per minute and a long distance call will cost $o.40 per minute. Last month a customer made a 30 minute of calls. If the total cost of call was $85.00 how many of each type of call did the customer make?
Click here to see answer by aggie_tutor(13)   |
Question 388186: 1.if a piece of wood is 5cm longer than a second piece and 3/4 of the second piece is equal to the 3/5 of the first what is the length of the second piece?
2.a man walked for some distance at 8km/h and for an equal distance at 5km/h.the total time he took was 13/4 hours.find the total distance he walked
3.a man cycled for some time at 16km/h and returned at 15 km/h. the total time was taken was 31/4 hours. find the total distance he cycled?
4.a cyclist goes from one village to another at 28 km/h. he returns at 24 km/h. if the return journey takes two hours longer than the outward outward journey.what is the distance between the villages ?
5.a boy has a certain number of sweets. if he eats 16 a day they will last him 2 days longer than if he eats 18 a day. how many sweets has ha ?
Click here to see answer by edjones(7569)  |
Question 361230:
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 70 pounds. The truck is transporting 55 large boxes and 65 small boxes. If the truck is carrying a total of 4050 pounds in boxes, how much does each type of box weigh?
Click here to see answer by stic2u(1) |
Question 388020: Identify the sample as biased or unbiased and describe its type.
Tia surveyed every third house in the locality to determine the number of people who own pets.
A) unbiased, random
B) unbiased, systematic
C) biased, volunteer
D) biased, convenience
Click here to see answer by robertb(4012)  |
Question 388021: Identify the sample as biased or unbiased and describe its type.
To determine the popularity of a TV show, the viewers were asked to send their opinions via e-mail or text messages.
A) biased, convenience
B) biased, voluntary
C) unbiased, random
D) unbiased, systematic
Click here to see answer by robertb(4012) |
Question 388187: 1.a certain number of matches are needed to fill 24 boxes with each boxes containing the same number of matches .when 4 less matches are put in to each box, there are enough for 28 boxes. find the total number of matches ?
2.mr. ong makes regular business trips to kaulalumpur a distance of 420 km from singapore (a)on his way up to kaulalumpur he travels along the trunk road at an average speed of x km/h. write down the expression in trm of x for the time taken in hours to travel from singapore to kaulalumpur
(b)on his return journey to singapore he travels along the north south highway and increases the average speed by 15 km/h.write down the expression in term of x for the time taken in the hours to travel from kaulalumpur to singapore.
(c)if the time difference between the two journey is 40 min from an equation in x and show that it reduces x^2+15x-9540=0
(d)solve the equation and find the time taken for the trip from singapore to kaulalampur
3.mr. kumar lives in the eastern part of the singapore. he visits his aged parents who lives 36 km away, evry weekends. he finds that if he increases the average speed of his vehicle by 12 km/h.he could save 9 min of his travelling time. find the speed at which he travels before the increase in speed.
Click here to see answer by ankor@dixie-net.com(15746)  |
Question 388639: Two fishermen go ice fishing one morning. By noon, Fisherman A has 6 fish and is catching 2 fish per hour. Fisherman B has 4 fish and is catching 3 per hour. Assume they will continue catching fish at the same rate.
Write a system of equations that relates the time to the total fish caught.
Click here to see answer by richard1234(5390)  |
Question 388639: Two fishermen go ice fishing one morning. By noon, Fisherman A has 6 fish and is catching 2 fish per hour. Fisherman B has 4 fish and is catching 3 per hour. Assume they will continue catching fish at the same rate.
Write a system of equations that relates the time to the total fish caught.
Click here to see answer by CharlesG2(828) |
Question 388753: In an election, Rodel got 5 less votes than Joel,who in turn got 1 more than the number of votes that Marian received. The total number of votes was 72. How many votes did the winner of the election received?
Click here to see answer by rfer(12730) |
Question 388022: Out of 40 registered voters polled, 27 said they would vote for Mr. Jones in the mayoral election. Is this sampling method valid to represent the number of voters from the town who will vote for Mr. Jones? If so, how many of the 2390 resident of the city will vote for Mr. John?
A) Yes, 777
B) No
C) Cant be determined
D) Yes, 1613
Click here to see answer by unlockmath(1614)  |
Question 387696: In solving the equation (x 1)(x 2) = 30, Eric stated that the solution would be x 1 = 30 => x = 31 or(x 2) = 30 => x = 32
However, at least one of these solutions fails to work when substituted back into the original equation. Why is that? Please help Eric to understand better; solve the problem yourself, and explain your reasoning.
Click here to see answer by Fombitz(13828)  |
Question 389169: a boy sells shirts and ties to make a profit of $5 on each tie and $8 on each shirt, write an expression to represent his total profit
2)draw a graph and then from the graph, find the number of shirts and ties that he must buy to obtain max profit (3)calculate the max profit
Click here to see answer by richard1234(5390) |
Question 389688: A theater group sold a total of 440 tickets for $3940. Each regular ticket costs $5, each premium ticket costs $15, and each elite ticekt costs $25. The number of regular tickets was three times the number of premium and elite tickets combined. How many of each type of ticket were sold? Sole using a system of equations.
Click here to see answer by unlockmath(1614) |
Question 390074: Julio has found that his new car gets 36 miles per gallon on the highway, and 31 miles per gallon in the city. He recently drove 397 miles on 12 gallons of gas. How many highway miles did he drive? How many city miles did he drive?
Click here to see answer by stanbon(57967) |
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