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

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Question 230709: I would really appreciate any help with this problem. Photo reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail order?
Note: The question is asking for > not =>
Click here to see answer by josmiceli(9698)

Question 230707: The surface area of a cylinder with height, h, and base radius, r, is given by
A = 2 rh + 2 r2. Using 3.14 for , find the surface area of a cylinder with radius of 4 cm and a height of 20 cm.

Click here to see answer by checkley77(12569)

Question 230683: If four is added to twice a number and the sum is multiplied by three, the result is the same as if the number is multiplied by two and four is added to the product. What is the number?
Click here to see answer by edjones(7569)

Question 231710: tickets for a school playsell for $8for floor seatsand $6 for balcony seats.For the performance 72 tickets are sold,bringing in $516.how many of each tickets are sold?
Click here to see answer by checkley77(12569)

Question 232233: According to the U.S. Census Bureau, the two most popular female names in the United States are Mary and Patricia. Combined, these two names account for 3.7% of all female first names. The difference between the percentage of women named Mary and the percentage of women named Patricia are 1.5%. What percentage of all female first anmes in the United States are Mary and what percentage are Patricia?
Click here to see answer by stanbon(57424)

Question 233937: Consecutive Integers-Find the three consecutive integers whose sum is 84. I know the formula is n+(n+1)+(n+2)=84 and the answer should be 27,28,29 but I don't know how to show it.
Please help!
Click here to see answer by scott8148(6628)

Question 234379: the sum of the digits of a two-digit number is 14. if the number represented by reversing the digits is subtracted from the origional number, the result is 18. what is the origional number?
Click here to see answer by stanbon(57424)

Question 234377: A jar of quarters and dimes contains $15.25. their are 103 coins in all. how many of each are their?
Click here to see answer by checkley77(12569)

Question 234373: on a table there are 20 coins, some quarters and dimes. their value is $3.05. how many of each coin are there?
Click here to see answer by Lady of the Sith(6)

Question 234375: the attendance at a school concert was 578. admission cost $2.00 for adults and $1.50 for children. the receipts for the concert were $985.00. how many adults and how many children attended the concert?
Click here to see answer by checkley77(12569)

Question 235783: From start to finish, Ellen took 15 2/3 days to write a research paper for her literature class. This was 9/10 the time it took Rebecca to write her paper. How long did it take Rebecca to write her research paper?
Click here to see answer by nyc_function(2733)

Question 237385: I'm working with Formulas and World Problems in Algebra
The problem is
The original temperature of gas was 33 degrees K. Its present pressure is 6.8mm and its present temperature is 27degrees K. What was the original pressure of the gas?
They gave us: P1/T1 = P2/T2
So that would work out to P1 x T1/T1 = P2 x T1/T2
which becomes P1 = P2 x T1/T2
which becomes 6.8mm x 33 degreesK/27 degreesK
It's a basic algebra problem that I've forgotten the process for can you please help?
Click here to see answer by College Student(505)

Question 238088: I am having trouble with this problem. I know it has to do with factoring and setting the answer to zero.
.wyla has a 26-ft ladder leaning against her house. If the bottom of the ladder is 10 ft. from the base of the house, how high does the ladder reach?

Click here to see answer by Alan3354(30993)

Question 238157: The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: M(x)=19x-x^2. What rainfall produces the maximum number of mosquitoes?
Click here to see answer by JimboP1977(308)

Question 239218: What is 2,745 rounded to the nearest foot ?
Click here to see answer by josmiceli(9698)

Question 239504: HOW DO YOU SOLVE THIS EQUATION 5(32 – 4[8 +(23 – 18 /2 *3)]
Click here to see answer by solver91311(16897)

Question 239909: During the summer heat, a 10-mi bridge expands 10ft in length. Assuming the bulge occurs straight up the middle, how high is the bulge? (exact height of the bulge using radicals as needed. Do not simplify the radical and the height of the bulge, type an integer or a decimal. Round to the nearest thousandth)
Click here to see answer by ankor@dixie-net.com(15667)

Question 240691: Jane went fishing and caught a whopper of a fish! The head of her fish was ten inches long. The length of the fish's tail was equal to the length of the head plus half the length of the body. The body was as long as the head and tail together. What is the total length of her fish?

Click here to see answer by rapaljer(4667)

Question 241223: Alisha is making punch for a graduation party.The recipe requires twice as much orange juice as cranberry juice and 8 times as much ginger ale as cranberry juice.If she plans to make 165oz of punch,how much orange juice does she need? ok word problems are really hard for me,i just dont understand them at all, i have trouble on how to write them out find the answer.
Click here to see answer by College Student(505)

Question 241264: Erin and Susan both took their dogs for a walk.Together they walked 15 miles.If Erin walked 3 miles lees than susan,how far did susan walk with her dog? Ok my answer was 12 but i wasn't sure if it was right
Click here to see answer by College Student(505)

Question 241354: A 90-in pipe is cut into two pieces.One piece is 20 in more than tne other.Find the length of each piece.ok word problems are hard for me.But my answer for was 20 and 70.I wasn't sure if that was right.
Click here to see answer by unlockmath(1606)

Question 241444: If you double a number and then add 12, you get one-half of the original number. What is the oringinal number? I tried this problem and my answer was 8, but i wasn't sure if it was correct.
Click here to see answer by checkley77(12569)

Question 241482: The difference between six times a number and 9 is equal to five times the sum of the number and 2.Find the number.Ok my answer was 19 but i wasn't sure if it was correct.So this is how i worked it out:6x-9=5(x+2),6x=5x+19,x=19
Click here to see answer by stanbon(57424)

Question 241816: a movie theatre is having a "ladies night" special. Ladies tickets cost: $5.50; Mens tickets cost $7.50. If 175 people attend a showing of the movie "Love 2 you" that takes in $1150.50, how many of the people were ladies?
Click here to see answer by checkley77(12569)

Question 242821: The sum of three, consecutive even integers is 28 more than the second integer. What are the three intergers?
Click here to see answer by checkley77(12569)

Question 242819: Your financial institution charged you 12% simple interest on a one year loan. If your total payback, including interest, is $2464, how much did you originally borrow?
Click here to see answer by checkley77(12569)

Question 242826: Betty bought a car which was $1543.00 more than the other car that Joan bought. Paula bought a car that cost $977.00 less than Joans. The total price of all three cars was $62468.00 How much did each girl's car cost?
Click here to see answer by oberobic(2304)

Question 242822: Alexander an artist, welded 3 pieces of bronze together to create a project. The second piece is one-half of the first piece. The third piece is 4 less that the first piece. The total length of the pieces is 86 inches. How long was each piece?
Click here to see answer by oberobic(2304)

Question 243260: two numbers are in the ration 3:8. If the first number is increased by 4 and the second number is decreased by 6, the resulting numbers are in the ratio of 1:2. Find the original numbers.
Click here to see answer by checkley77(12569)

Question 243257: It takes mr Hack 15 minutes to bake some cupcakes and it takes mr babbit 20 minutes to bake the same amount of cupcakes. The cupcakes all have to be yellow cake with white icing and then rainbow sprinkles on top of the icing. How long will it take them if they both work together to make some cupcakes?
Click here to see answer by checkley77(12569)

Question 243244: find three consecutive positive odd integers such that the square of the sum of the first two exceeds the square of the third by 63
Click here to see answer by checkley77(12569)

Question 243265: One base of a trapezoid measures 5 cm. more than the other while the altitude is 4/3 times as long as the shorter base. Find the lenghts of the bases if the area is 100 cm².
Click here to see answer by kamaldas(6)

Question 244172: the sume of two numbers is 28, their difference is 2. what are the numbers?
Click here to see answer by richwmiller(9143)

Question 245725: Solving systems by substitution
Vong grilled 21 burgers at a block party. He grilled the same number of pounds of turkey burgers as hamburgers. Each Turkey burger weighed 1\4 pound and each hamburger weighed 1\3 pound. How many of each did Vong grilled.
I think I need two equations:
t + h = 21
Can't figure out the rest...
Click here to see answer by richwmiller(9143)

Question 245965: the area A of a triangle with base b and height h is given by A = 1/2bh. Find the area when b = 15 and h = 10
Click here to see answer by solver91311(16897)

Question 247671: The perimeter of a rectangle is 106 mm. The length is one more than three times the width. What is the area?
Click here to see answer by oberobic(2304)

Question 247605: Need to solve the following problem in 2 different ways:
The Math Club sold roses and tulips this year for Valentine's Day. The number of roses sold was 8 more than 4 times the number of tulips sold. tulips were sold for $2 each and roses for $5 each. The club made $414.00. How many roses were sold?
Click here to see answer by ankor@dixie-net.com(15667)

Question 248255: The hang-time function V(T) = 48T2, relates vertical leap to hang time. A player has a vertical leap of 29 in. What is his hang time?
Click here to see answer by tutorcecilia(2152)

Question 248668: Karin biked at 13 mph for a time but got a flat tire. She then walked 5pmh. She traveled a total of 93 miles. Had she biked the whole time, she would have gone 117 miles. How many hours did she walk?
Click here to see answer by ankor@dixie-net.com(15667)

Question 248666: Anne and Nancy use a metal alloy that is a 24.9% copper to make jewelry. How many ounces of 20% alloy must be mixed with a 27% alloy to form 100 ounces of the desired alloy?
Click here to see answer by ankor@dixie-net.com(15667)

Question 249600: A cruise boat travels 48 miles downstream in 3 hours and returns upstream in 6 hours. Find the rate of the stream.
Click here to see answer by checkley77(12569)

Question 249598: The difference between two numbers is 4. Two times the smaller number minus four times the larger number is -28. What are the numbers?
Click here to see answer by checkley77(12569)

Question 249597: Ron and Kathy are ticket sellers at their class play, Ron handling student tickets that sell for $2 each and Kathy selling adult tickets for $5.50 each. If their total income for 30 tickets was $105.50, How many tickets did Ron sell?
Click here to see answer by checkley77(12569)

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