Tutors Answer Your Questions about Linear Equations And Systems Word Problems (FREE)
Question 622468: A woman's $20,000 estate is to be divided so that her husband is to receive three times as much as her son. find the amount that her husband and her son will receive. Complete the first two steps by filling in the blanks.
Remember, each time we do this we want a SINGLE variable, one time it is an S and the other time it is an h
S + 3S = $20,000
S + 3S = 4s 4s= $20,000 4/4 s= 20,000/4 s = 5,000
S= the son’s amount
3S=the husband’s amount
Now that, I know what the son's amount is, how do we write the equation to show how to get the husbands amount. And only using the variable H. Thank you in advance.
Click here to see answer by solver91311(16897)  |
Question 622619: A man invests his savings in two accounts, one paying 6% and the other paying 10% simple interest per year. He puts twice as much in the lower-yielding account because it is less risky. His annual interest is $4,180. How much did he invest at each rate?
Click here to see answer by math-vortex(472)  |
Question 622806: The monthly payment p on a mortgage varies directly with the amount borrowed B. If the monthly payment on a 30-year mortgage is $7.30 for every $1000 borrowed, find a linear function that relates the monthly payment p to the amount B for a mortgage with the same terms. Then find the monthly payment p when the amount borrowed is $194,000.
I come up with p= B/219; $885.84 am I right?
Click here to see answer by fcabanski(874) |
Question 623572: Hi there. Please help me with my Calculus homework. Here it is:
Engr. Florencio purchases an equipment for P1,192,000. The equipment requires an average expenditure of P236.25 per hour for fuel and maintenance, and the operator is paid P120.00 per hour.
Write a linear equation giving the total cost C of operating this equipment t hours.
Click here to see answer by josmiceli(9695)  |
Question 623673: Two trains start from stations 600 km apart and travel toward each other. The trains meet after 6 hours. Find the rate of each train if one travels 10 km per hour faster than the other. can u help me with this problem? thank u.
Click here to see answer by Alan3354(30993)  |
Question 623771: I understand the concept but cannot arrive at the correct answers I think I am messing up the last equation. I keep getting the number of adult tickets is 74 but I know that is not right. A movie theater charges $7 for adults, $5 for children, and $4 for seniors over age 60. The theater sold 222 tickets and took in $1383. If twice as many adult tickets were sold as the total of children and senior tickets, how many tickets of each kind were sold.
Click here to see answer by math-vortex(472)  |
Question 623771: I understand the concept but cannot arrive at the correct answers I think I am messing up the last equation. I keep getting the number of adult tickets is 74 but I know that is not right. A movie theater charges $7 for adults, $5 for children, and $4 for seniors over age 60. The theater sold 222 tickets and took in $1383. If twice as many adult tickets were sold as the total of children and senior tickets, how many tickets of each kind were sold.
Click here to see answer by MathTherapy(1425)  |
Question 623957: A mail-order company charges $4 for shipping orders of less than $50, $6 for orders from $50- $200, and $8 for orders over $200. One day the total shipping charges were $2160 for 384 orders. Find the number of orders shipped at each rate if the number of orders under $50 is 12 more than twice the number of orders over $200.
I know how to do determinants but just having a hard time figuring out the equations I should be using. Any help would be appreciated. Thank you
Click here to see answer by solver91311(16897)  |
Question 623761: in three days, Carter drove 2196 miles in 36 hours behind the wheel. tt day he averaged 64 mph, the second day 62 mph, and the third day 58 mph. If he drove 4 more hours on the third day than the first day, then how many hours did he drive each day ?
Click here to see answer by MathTherapy(1425)  |
Question 624651: A formula in the form of models the average retail price, {y} of a new car {x} years after 2000. Would you expect {m} to be Positive, negative, or zero? Explain your answer.
I think it would be postitive cause when your dealing with new cars there should not be a negative.
Just not sure if that would be right.
Click here to see answer by nerdybill(6962)  |
Question 624905: I am totally stumped on these word problems:
A one-cup serving of orange juice contains 3 mg less than
four times the amount of vitamin C as a one-cup serving
of pineapple juice. Servings of the two juices contain a
total of 122 mg of vitamin C. How many milligrams of
vitamin C are in a serving of each type of juice?
So far my guess is 122=4X-3-X
Also it possible where i can find out to do these so i won't have to ask for help for these type of problems in the future! Thank you!
Click here to see answer by ewatrrr(10682)  |
Question 625065: Please help me with this question.
A pony and a donkey were carrying some bundles of cloth for a cloth merchant. On the way, the donkey said to the pony, "If I give you one bundle, my load will be half of yours." In an angry mood, the pony retorted, "Why don't you take one bundle from me, then my load will be half of yours!" Assuming that the bundles are of equal weight, how many bundles did the pony and the donkey each carry?
Click here to see answer by josmiceli(9695)  |
Question 626395: In a test of 30 questions, 20 points are given for each correct answer and 5 points are deducted for each one answered wrong. If Maria answered all of the questions and got a score of 325, how many did she get right?
Click here to see answer by nerdybill(6962)  |
Question 626552: Suppose that f(x)=x^2+4x-12.
A.what is the vertex of f?
B. what are the x-intercepts of the graph of f?
C. solve f(x)= -12 for x. what points are on the graph of f ?
D. use the information obtained in parts A-C to grapgh f(x)=x^2 +4x-12
answers in ordered pair for a through c.
Click here to see answer by lwsshak3(6516) |
Question 626906: hmp..i ask for a help now...i need to know the answer now.. the problem goes like this
THE TEMPERATURE OF AN OBJECT IN CELSIUS AND FAHRENHEIT SCALES ARE RELATED BY A LINEAR FUNCTION.WATER BOILS AT 100 DEGREE C OR 212 DEGREE F,AND FREEZES AT 0 DEGREE C OR 32 DEGREE F
a.)IF THE WEATHER IS FORECAST AT 40 DEGREE C TODAY,WILL IT BE COLD.HOT OR JUST WARM?EXPLAIN?
......IM BEGGING YOU...PLEASE HELP ME.....NOW..
Click here to see answer by solver91311(16897)  |
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