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

Tutors Answer Your Questions about Evaluation Word Problems (FREE)

Question 9147: I need help on finding the number of different starting teams if five basketball players are chosen from a team of ten players
Click here to see answer by DWL(56)

Question 10085: I keep getting the wrong answer for this. I don't know which part of my equation is wrong. The book says that the answer is: 358 miles
It says solve (WORD PROBLEM)
"a car rental company charges $39.95 per day for a compact car plus 15 cents per mile over 100 miles driven per day. If a customer's bill for 2 days' use is $103.60 before taxes, find how many miles to the nearest whole mile were driven."
I know what to do once the problem is set up. I just can't seem to set it up correctly. I thought it translated to:
(2) 39.95 + .15= 103.60
butI know that it's not right. Can anyone help? Please.

Click here to see answer by longjonsilver(2297)

Question 10740: a hiking club charges an initial fee of $60 and then $12 for each hinking trip. write an expression to model the total cost and then evaluate the expression for 1 to 6 hikes.
Click here to see answer by askmemath(368)

Question 13630: prove that
coso-1 coso+1
--------- + --------- =2[1+tano]
seco+tano seco-tano
pls zero there means theta

Click here to see answer by longjonsilver(2297)

Question 14033: I am a Mom trying desperately to help my son with his homework. It has been along time since I have done algebra. I am hoping you can help me. Here is his question: The sum of two numbers is 437. Twice the first number plus 5 times the second number is 1393. Find the two numbers.
Click here to see answer by LilSkittleMd(119)

Question 14190: It's a word problem that I'm having trouble setting up.

'Your school's drama club charges $4 per student for admission to /Our Town/, The club borrowed $400 from parents to pay for costumes, props, and the set. After paying back the parents, the drama club has $100. How many students attended the play?'
Heh,
Mandy
Click here to see answer by Earlsdon(6294)

Question 15573: This year sales for Homegrown Video are 35% higher than last year. nThis years the sales are $182.250. What were the sales last year
Click here to see answer by pwac(253)

Question 15742: If 2ax - 5x = 2, then x is equivalent to

Click here to see answer by rapaljer(4671)

Question 17455: the sum of an integer and its square is 6 less than the square of the next greater integer. what is the value of the integer?
Click here to see answer by bam878s(77)

Question 17865: a student answered three questions on a 40 questions test incorrectly. what percent did the student answer correctly?
Click here to see answer by LilSkittleMd(119)

Question 17864: the telephone rates between your city and the city where your brother lives are $.54 for the first minute and $.22 for each additional minute. calculate the cost of a 10-inute call to your brother.
Click here to see answer by LilSkittleMd(119)

Question 17294: Agirl has a collection of dimes and nickles worth four dollars. If she has 60 coins,how many of each kind are there? I don't know how to set up an algebraic equation! please show me the equation.
Click here to see answer by LilSkittleMd(119)

Question 18449: i dont know how to write an evaluation for kimono so i wanted you people to help me how to write it so plz send me as soon as you can

regards
kishan
xxxx
Click here to see answer by xcentaur(357)

Question 18990: I am very confused as to what it means to add or subtract to both sides...
Click here to see answer by piglet162431(90)

Question 18988: four numbers have a total of 92. The first number is twice the second number and the third number is 4 times more than the sum of the first two. The fourth number is 3 less than the difference of the first two numbers. What is the difference?
I have access to the answer and after I have that I can do it...but I can not for the life of me figure how to get the fist number. I am doing a series of these problems and Im almost in tears...please help! Thank you!!!!!
Click here to see answer by venugopalramana(3286)

Question 18985: four numbers have a total of 92. The first number is twice the second number and the third number is 4 times more than the sum of the first two. The fourth number is 3 less than the difference of the first two numbers. What is the difference?
I have access to the answer and after I have that I can do it...but I can not for the life of me figure how to get the fist number. I am doing a series of these problems and Im almost in tears...please help! Thank you!!!!!
Click here to see answer by askmemath(368)

Question 19395: the difference between two numbers is 16. five times the smaller is the same as 8 less than twice the larger. find the numbers
Click here to see answer by wuwei96815(245)

Question 20149: I am a mom trying to help my son with a word problem. I am stumped. Please help:
Pete has 20 pets. If he has 5 more than 1/4 as many dogs as cats, how many cats does he have?
Thanks!
LS
Click here to see answer by suresh(20)

Question 20273: June has twice as many marbles as Norm. Norm has nine marbles fewer than June. How many marbles does each person has?
Click here to see answer by mdgirl920(1)

Question 20384: Fred painted a room in 3 hours. Sally painted the same room in 2 hours. How long will it take them to paint the room together?
Click here to see answer by Earlsdon(6294)

Question 20633: Vent Grill The Newbury Elementary School needs a new air vent drilled into the wall of the maintenance room. The circular hole that is necessary will have a radius of 7 inches. The stainless steel grid that will cover the vent costs $6.50 per square inch. How much will the vent cost? Use A = π r2 and π  3.14.
Click here to see answer by Paul(988)

Question 20779: The sum of 2 numbers is 108. If twice their difference is subtracted from the smaller, remainder is 9. Find the 2 numbers.
Click here to see answer by Paul(988)

Question 22408: The sum of two numbers is 8, and their product 9. Find the numbers.
I've gotten as far as:
x+y=8
xy=9
It's too messy to be right when I try and substitute y=8-x into the second equation. I think I'm missing a step somewhere. Thanks for your time.
Click here to see answer by stanbon(75887)

Question 22563: I need to know how to setup questions like this.
Jackie walkem 8miles more than Will. Jackie walked twice as far as Will. How far did each of them walk?
Click here to see answer by stanbon(75887)

Question 22697: Im helping my brother with this problem and i cant get it so maybe you can.
If tim has a total of 180 marbles some plain and some colored. there are 32 more plain marbles then color. how many marbles does he have of each?
Click here to see answer by Paul(988)

Question 23050: a full grown giraffe is about 6 times heavier than a full grown lion. A full grown cheetah is about one-quarter as heavy as a full grown lion. Together, they are about 450kg. What is the approximate mass of each animal?
Click here to see answer by Paul(988)

Question 23148: A rope over the top of a fence has the same length on each side and weighs one third of a pound per foot. On one end hangs a monkey holding a banana, and on the other end a weight equal to the weight of the monkey. The banana weighs 2 ounces per inch. The length of the rope in feet is the same as the age of the monkey ,and the weight of the monkey in ounces is as much as the age of the monkey's mother. The combined ages of the monkey and it's mother are 30 years. One-half the weight of the monkey plus the weight of the banana is one-forth the sum of the weights of the rope and the weight.The monkey's mother is one half as old as the monkey will be when it is three times as old as it's mother was when she was one half as old as the monkey will be when it is as old as its mother will be when she is four times as old as the monkey was when it was twice as old as its mother was when she was one-third as old as the monkiey was when it was as old as its mother was when she was three times as old as the monkey was when it was one-fourth as old as it is now.

HOW LONG IS THE BANANA?
Click here to see answer by wuwei96815(245)

Question 21807: Solve the system by the substitution method.
x + 5y = 5
3x - 8y = -8
Click here to see answer by rapaljer(4671)

Question 23258: The largest angle of a triangle is 111 degrees greater than the smallest angle. The sum of the two smaller angles is 68 degrees less than the largest angle. Find the measure of each angle.
Click here to see answer by Paul(988)

Question 23848: plaease help me use the substitution method to solve the linear system.
y = x-4
4x+y = 26
Click here to see answer by ilana(307)

Question 23857: i cannot figure this out!!!
" the second of two numbers is 1 more than twice the first. Their sum is 25. Find the numbers."
x=first number =
2x +1 = Second number =

Click here to see answer by Paul(988)

Question 23863:
ive tried to do this and i am stuck!!

" The second of two numbers is 3 less than twice the first. Their sum is 42. Find the numbers."
x = first number =
4x - 2 = second number =
Click here to see answer by Paul(988)

Question 24219: The product of a number and 3 is twice the sum of that number and five.
I can't seem to plot it or seperate it to solve the problem, please help!
thanks
Click here to see answer by elima(1433)

Question 24931: n to the power of 4 + 8n to the power of 3 + 15n to the power of 2
Click here to see answer by pwac(253)

Question 25095: story problems are the worst for me could somebody help?
An "N-gauge" train model is created using a scale of 1:160. If an actual train
engine, the "K-4" an early twentieth century engine, is 45 ft long, what is the length of an "N-gauge" model,of the model in inches?
Click here to see answer by Earlsdon(6294)

Question 25094: I have a word problem I do not understand could someone PLEASE help?
A toy airplane is 10 inches long. If the actual plane is 75ft. long, find the scale of the model.
Click here to see answer by Earlsdon(6294)

Question 25129: I hate story problems I just don't get them.
The actual distance from Fargo,ND to minneapolis,MD is 240 miles. if the scale
on a map is 1 inch=20 miles, how long on the map connecting the two cities?
Click here to see answer by Linz(9)

Question 25252: In the year 2010, 6.7% of the U.S. population is projected to be under the age of 5. If the population will be about 298 million, about how many people will be in this age range?
thanks!!!!!
Click here to see answer by wuwei96815(245)

Question 25253: A bag of candy has 6 orange pieces, 8 green pieces, and 11 red pieces. What is the probability that the first piece of candy you draw at random out of the bag is red or green?
Click here to see answer by wuwei96815(245)

Question 25323: Here is the problem. A bottle and its cork together cost $35.00. The bottle costs exactly $30.00 more than the cork. What is the cost of the cork? The obvious answer is $5.00 but at the bottom of the page it says Hint: The answer is not $5. Every time we set the problem up, we get $5.00.
Click here to see answer by Paul(988)

Question 25805: A $1.60 assortment of cards contains $0.20 cards and $0.15 cards. The number of $0.20 cards is 2 less than half the number of $0.15 cards. Find the number of each type of card.
Thank you!!
Click here to see answer by Paul(988)

Question 25803: Ribbons costing $0.20 each are mixed with ribbons costing $0.15 each. The mixture costs $1.20. The number of $0.20 ribbons is 3/4 of the $0.15 ribbons. Find the number of each type of ribbon in the box.
Thank You!!
Click here to see answer by elima(1433)

Question 25801: Mr. Lead want to mix pencils costing $0.15 each with pencils costing $0.35 each. The mixture will cost $3.45. The number of $0.35 pencils is 7 more then the number of $0.15 pencils. How many of each type of pencil should be included in the package??

Click here to see answer by elima(1433)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915