Questions on Word Problems: Evaluation, Substitution answered by real tutors!

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Question 99107: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy?
How many Douglas firs?

How many Ponderosa Pine?

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Question 100627: the sum of three numbers is 20.The second number is 4 times the first, and the sum of the first and third is 8. find the number
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Question 100708: solve page 143
problem 24
the sum of three numbers is 20. the second number is 4 times the first, and the sum of the first and third is 8. find the number
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Question 100945: Temperature The expression is 9/5C + 32
Where C stands for temperature in degrees Celsius
is used to convert to farenheit. 9/5(20)
If the Temperature is 20 degress Celsius Find theTemp in degrees farenheit.
Click here to see answer by elima(1433)

Question 101041: Peter takes 15 minutes longer to mow the lawn by himself than charles dows. Together they mow the lawn in 18 minutes. How long does it take for charles to mow the lawn by himselves?

I am having trouble figruing out the equasion of this problem.
I DO KNOW THIS:
p= c+15
c+p=18
p=c+15
c+p=18
Click here to see answer by stanbon(75887)

Question 102863: Hi-
I know the answer to the problem. 7, 8 but I do not know how to come up with the equation or show how to solve it. HELP
The sum of two numbers is 15. Three times one of the numbers is 11 less than five times the other. Find the numbers.
Click here to see answer by stanbon(75887)

Question 103604: at sammys sub the cost of a regular sub sandwich is $5. sammyshas sunday sub special:$2.off every order. write an expressionthatrepresents the cost of an order of nregular sub sandwiches on sunday.
Click here to see answer by elima(1433)

Question 103765: solve by substitution: x=6-2y
y=5x-8
Can you please help me with this equation?
Thank you
Click here to see answer by scott8148(6628)

Question 104067: What is Two more than 5 times a number is 77?
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Question 104224: Angela's average for six math tests is 86. On her first tests she had scores of 80, 88, 82, 93. On her last test, she scored 7 points lower than she did on her fifth test. What scores did Angela receive on her fifth and sixth tests?
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Question 104226:
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Question 104406: The age of Nando is 8 years more 3 times his brother's age.find the age of each if 10 years from now ando will be 5 years more than twice his brother's age.
Click here to see answer by ankor@dixie-net.com(22740)

Question 104719: explain the general procedure used to identify and set up a proportion problem.

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Question 104834: Shonna and Desi went shopping and spent $84 altogether. Shonna spent $15 less than twice as much as Desi. How much did Shonna spend?

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Question 104836: If one-half the smaller number of two numbers is increased by one-third the larger number, the result is 2. If one-third the smaller number increased by one-ninth the larger number, the result is 1. Find the numbers.
in worksheet!!
Click here to see answer by edjones(8007)

Question 104774: if 6 is added to 2 less than 9 times Marge's age, the result is 40. How old is Marge.

I am not sure how this problem would be done. we need a variable. thank youuu
Click here to see answer by elima(1433)

Question 105979: Find the amount of ice cream in a cone if the radius of the cone is 4cm and its height is 10cm. The ice cream fully fills the cone and the hemisphere of the ice cream on top has a radius of 4 cm
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Question 106205: One machine takes 15 minutes to do a certain job. Another machine takes 20 minutes to do the same job. Find the time it would take both machines, working together, to do the same job. Be sure to define your variable, write an equation, and show how you solved the equation. Please help.
Click here to see answer by bucky(2189)

Question 106500: (x+2y=1
2x-y=-3) solve each system using the substitution or elimination method.
Click here to see answer by checkley75(3666)

Question 106691: A rectangular corral built with 190 m of fencing that inludes four separate grazing areas lies on a 962 m(square) rectangular plot of land. the fence that divides the grazing areas is parallel to two of the sides of the corral. if there is a 1 m strip of land between each side of the corral and the property line, find the dimesions of the corral. there may be more than one answer!!...
Click here to see answer by edjones(8007)

Question 106865: find the slope of the line that passes through (-3,1) and (2,-6).
find an equation of each line in standard form satisfying the given conditions.
Click here to see answer by jim_thompson5910(35256)

Question 106866: find the slope and the y-intercept of the line 6x-2y=7.
find an equation of each line in standard form satisfying the given conditions.
Click here to see answer by tutorcecilia(2152)

Question 107350: Through (-2,4) and (5,0).
find an equation of each line in standard form satisfying the given conditions.
Click here to see answer by Annabelle1(69)

Question 107462: Find the slope and the y-intercept of the line 6x-2y=7.
HAVE TO FIND AN EQUATION OF EACH LINE IN STANDARD FORM SATISFYING THE GIVEN CONDITIONS.
Click here to see answer by stanbon(75887)

Question 107349: Find the slope and the y- intercept of the line 6x-2y=7.
Find an equation of each line in standard form satisfying the given conditions.
Click here to see answer by elima(1433)

Question 110452: 1. Matrix methods can be used to solve linear programming problems. A linear programming problem is used to find an optimal solution, subject to stated restraints.
One typical application is to maximize profits. For example, a beauty parlor provides both highlighting and permanent wave services. It costs $5 in materials and requires 30 minutes to provide highlighting. However, it costs $12 in materials but requires 80 minutes to provide a perm. The store has at most $120 in materials and 800 minutes in labor per day to expend.
How many highlighting services and how many perms can the beauty parlor perform daily to maximize cost and time?

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Question 110492: The average of two positive integers is 134. One of the numbers is the square root of the other. Find the integers.
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Question 110492: The average of two positive integers is 134. One of the numbers is the square root of the other. Find the integers.
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Question 110588: One of the equal sides of an isoceles triangle is 3m less than twice its base. The perimeter is 44. Find the lengths of the sides
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Question 110793: The sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number. What is the number?
Click here to see answer by stanbon(75887)

Question 112013: Estimate: 25.78 + 240.22 + 800.36 + 4.322 + 0.9142
Click here to see answer by jim_thompson5910(35256)

Question 113352: six times a number equals 3 times the number increased by 24. Find the number
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Question 113819: the number 49 is half the sum of thrice a certain number N and twenty eight. Give a mathematical expression for 49 in terms of N.
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Question 114574: the length of the second side of a trianglei s 2 inches less than the lenght of the first side. the length of the third side is 12 inches more than the length of the first side. the perimeter is 73 inches. find the lenth of each side of the triangle.
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Question 115069: How many sheets of metal 1/32 inches thick can their be in a pile of 25.5 inches tall?

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Question 115068: How many sheets of metal 1/32 inches thick can their be in a pile of 25.5 inches tall?

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Question 115685: Can anyone give me about 4 or 5 Word Problems that you use Substitution or Elimination to solve them with.
They need to be either equations or inequality word problems, you have no idea how long today i've been struggling to figure this out, i've searched read my math book and im really in a bad situation because if I dont come up with 5 i may fail my class and that wouldn't be good.. if anyone can link me or show me some problems that have what I need That would be greatly appreciated !!!
Click here to see answer by ptaylor(2198)

Question 115882:
the difference of 4 times a number and 8 is 36?
The difference of 2 times a number and 6 is -24
Click here to see answer by checkley71(8403)

Question 116201: Hello, Could you please help me figure out if I have the problem
8ft. 4in.-2ft.9in. I have to borrow from the 8 but I can't figure out how many inches add on to the 4 to be able to subtracted from the 9. Thanks
Click here to see answer by ptaylor(2198)

Question 116716: Emilio and Rose sell half of their book collection at a garage sale. They donate 1/5 of the remaining books to a resale shop and keep 40 books. How many books did they have to start with?
Click here to see answer by ankor@dixie-net.com(22740)

Question 118717: The 42km drive from Oakdale to Ridgemont usually takes 28 min. Because highway construction requires a reduced speed limit, the trip now takes 14 min longer. Find the reduced speed limit in km/h.
Click here to see answer by m.hansen(16)

Question 118716: The 42km drive from Oakdale to Ridgemont usually takes 28 min. Because highway construction requires a reduced speed limit, the trip now takes 14 min longer. Find the reduced speed limit in km/h.
Click here to see answer by m.hansen(16)

Question 118715: The 42km drive from Oakdale to Ridgemont usually takes 28 min. Because highway construction requires a reduced speed limit, the trip now takes 14 min longer. Find the reduced speed limit in km/h.
Click here to see answer by m.hansen(16)

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