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Tutors Answer Your Questions about Numbers Word Problems (FREE)
Question 196978: The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number.
I tried using substitution from the two equations given, which I think are :
(x + y) / 2 = 7 and
3x = 1/2y
But I didn't have any luck
Click here to see answer by vleith(2825) |
Question 196978: The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number.
I tried using substitution from the two equations given, which I think are :
(x + y) / 2 = 7 and
3x = 1/2y
But I didn't have any luck
Click here to see answer by stanbon(57231) |
Question 196978: The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number.
I tried using substitution from the two equations given, which I think are :
(x + y) / 2 = 7 and
3x = 1/2y
But I didn't have any luck
Click here to see answer by jim_thompson5910(28503) |
Question 197427: There are 7 girls in a bus. Each girl has 7 backpacks. In each backpack, there are 7 big cats. For every big cat, there are 7 little cats. The bus driver is not in the bus at this time.
Question:
How many legs are there in the bus?
Click here to see answer by checkley77(12569) |
Question 197616: f(x)= ax^2+bx+5
Find a and b if f(x+1)-f(x)=8x+3
Can someone please help me with this problem ive never learned how to do a problem like this and i have to have it done for tomorrow. Your help would be greatly appreciated!
Click here to see answer by Alan3354(30982)  |
Question 197936: The sum of two numbers is 29. If the smaller is doubled and the larger is increased by 7, the resulting numbers will be equal. Find both numbers.
I need a complete solution. *sobs* I am really sleepy now, still i don't know how to get the answer. *sobs*
Click here to see answer by nerdybill(6948)  |
Question 198041: While training for soccer you work out each day after school. During your workout you lift weights and play soccer for a total of 75 minutes. You burn 7 calories per minute when playing soccer and 3 calories per minute when lifting weights. If t is minutes you play soccer write an expression in terms of t for the total calories you burn during your workout. Then find the total number of calories burned if you play soccer for 55 minutes.
Is this right: 75= 7+3+t
75= 10+t
65= t(total calories burned
then you would do 75= 7+3+55t
75= 10+55t
Click here to see answer by josmiceli(9654)  |
Question 198849: An express train and a local train both leave Gray's Lake at 12:00 noon and head for Chicago 60 miles away. The express travels twice as fast as the local and arrives 2 hours ahead of it.Find the speed of each train.
60m/2h= t + 12n
I cannot get the right answer.
Click here to see answer by jim_thompson5910(28503) |
Question 199436: A local hamburger shop sold a combined total of 496 hamburgers and cheeseburgers on Saturday. There were 54 fewer cheeseburgers sold than hamburgers. How many cheeseburgers were sold on Saturday?
I tried hamburgers + cheesburgers =496. Now I dont know how to progress? can you please help?
Click here to see answer by nerdybill(6948)  |
Question 199437: A local hamburger shop sold a combined total of 496 hamburgers and cheeseburgers on Saturday. There were 54 fewer cheeseburgers sold than hamburgers. How many cheeseburgers were sold on Saturday?
I tried hamburgers + cheesburgers =496. Now I dont know how to progress? can you please help?
Click here to see answer by ankor@dixie-net.com(15632)  |
Question 199854: the sum of both digits of either of two two-digit numbers, in whatever order the digits are written, is 9. The square of either of the digits of either number, minus the product of both digits, plus the square of the other digit is the number 21. The numbers are?
Click here to see answer by ankor@dixie-net.com(15632)  |
Question 200236: One cellular plan is 5 dollars per month plus 2 cents per minute and the other plan adds 100 to the number of minutes you use and then charges 4 cents per minute. How many minutes of use will the cost of the two plans be equal?
Click here to see answer by solver91311(16868)  |
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