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Tutors Answer Your Questions about Numbers Word Problems (FREE)
Question 151854: Please help me with this problem. I've tried working on it but all I end up with is a headache.
The sum of the digits of a two-digit number is 8. If 16 is added to the original number, the result is 3 times the original number with its digits reversed. Find the original number.
Click here to see answer by ankor@dixie-net.com(6685)   |
Question 152341: Six students each try to guess the number of pennies in a jar. The six guesses are 52, 59, 62, 65, 49, and 42. One guess is 12 away, and the other guesses are 1, 4, 6, 9, and 11 away. How many pennies are in the jar?
Click here to see answer by nabla(412)  |
Question 152343: The weather during the Forburg's vacation was very strange.
It was cloudy on 13 different days, but it was never cloudy for an entire day.
Cloudy mornings were followed by clear afternoons.
Cloudy afternoons were preceded by clear mornings.
There were 11 clear mornings and 12 clear afternoons in all.
How long was the vacation?
Click here to see answer by mducky2(55) |
Question 152639: May I request your assistance in answering this word problem. Thank you very much.
"A farmer sold 7 goats, 11 chickens, 5 sheeps and 3 cows for U$980. One goat costs 3 times as much as one chicken, but cost half as much as one sheep and a quarter of the cost of one cow. How much did the farmer sell each goat?"
Click here to see answer by scott8148(3382)  |
Question 152639: May I request your assistance in answering this word problem. Thank you very much.
"A farmer sold 7 goats, 11 chickens, 5 sheeps and 3 cows for U$980. One goat costs 3 times as much as one chicken, but cost half as much as one sheep and a quarter of the cost of one cow. How much did the farmer sell each goat?"
Click here to see answer by vleith(1977) |
Question 152745: Okay, here it is:
A boat weighs 1500 lb more than its motor and 1900 lb more than its trailer. Together the boat and motor weigh five times as much as the trailer. How much does the boat weight?
I have tried so many times for the past twenty minutes!! I can't get it!! Thank you so much.
Here is the last thing I tried:
x+1500=boat
x=trailer
x+400=motor
x+1500+x=5(x+400)
2x+1500+5x+2000
2x=5x+500
-3x=500
x=-166.666666 (It doesn't work) =(
Click here to see answer by checkley77(7032) |
Question 153054: The moon travels an elliptical path with Earth as one focus. The maximum distance from the moon to Earth is 405,500 km and the minimum distance is 363,300 km.
(1) What is the eccentricity of the orbit?
(2) For a planet or satellite in an elliptical orbit around a focus of the ellipse, perigee (P) is defined to be its closest distance to the focus and apogee (A) is defined to be its greatest distance from the focus. Show that  is equal to the eccentricity of the orbit.
(3) Find the Apogee. Find the Perigee.
Click here to see answer by Edwin McCravy(2920) |
Question 153148: Just need help on the completion of this problem which is due tomorrow 8/24 Thanks
The Conic Sections, Sequences and Series
i) Problem: The moon travels an elliptical path with Earth as one focus. The maximum distance from the moon to Earth is 405,500 km and the minimum distance is 363,300 km.
(1) What is the eccentricity of the orbit?
(2) For a planet or satellite in an elliptical orbit around a focus of the ellipse, perigee (P) is defined to be its closest distance to the focus and apogee (A) is defined to be its greatest distance from the focus. Show that A-P is equal to the eccentricity of the orbit.
A+P
(3) Find the Apogee. Find the Perigee.
(4) Explain the problem step by step and what mathematical concepts are being applied to this problem?
Click here to see answer by stanbon(26249) |
Question 153579: Cheryl is dividing her soccer team into 5 groups, 1/2 are forwards,1/6 are halfbacks,1/6 are wings,1/12 are fullbacks and 2 others are goalies. How many players are there on the team and how many in each group?
Click here to see answer by vleith(1977) |
Question 154345This question is from textbook
: There are 40 cows and chicken in the farmyard. One quiet afternoon, Jack counted and found that there were 100 legs in all. How many cows and chickens are there? Solve this problem by writing and solving an equation.This question is from textbook
Click here to see answer by Alan3354(6047)  |
Question 154534: in a class of 68 students, there are 8 fewer democrats than republicans, and there are only half as many independents as democrats if every student is registered as a democrat, republican, or independent, how many students are in each group?
Click here to see answer by checkley77(7032) |
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