|
Tutors Answer Your Questions about Numbers Word Problems (FREE)
Question 100387: 2*3 consecutive even numbers such as the sum of twice the first number and the third number is 30 more than the second number.
equation__________________
Answer____________________
how do you do this? thank you for your help. i have 5 more to do after this and i am confused.
Click here to see answer by edjones(3291)  |
Question 100758: Business and finance. In planning for a new item, a manufacturer assumes that
the number of items produced x and the cost in dollars C of producing these items
are related by a linear equation. Projections are that 100 items will cost $10,000 to
produce and that 300 items will cost $22,000 to produce. Find the equation that
relates C and x.
Click here to see answer by oberobic(93)  |
Question 101218: 15 books are being bought. Some cost $8.50 each, the remainder cost $9.50 each. Estimate the least number of books that can be bought at $8.50 each if the total cost must not be more than $135.50.
Click here to see answer by Nate(3495)  |
Question 101370: The sum of three consecutive even numbers is 60. What are the the 3 numbers?
These problems I have a hard time understanding. Can someone help me figure this one out?
This is what I got so far and I don't know if its right.
x is even consecutive #
x + 2 is next #
x + 4 is next #
And I set up as:
x + (x+2) + x +4 = 60
Thanks so much for your help.
Click here to see answer by ptaylor(1578)  |
Question 102201: Please help with this problem. This sounds easy but it may be a trick question. My answer would be any number you start with it doesn't matter.
The question is:
Javier said, I have a number in mind. If I add 5 to it, then subtract 5 from it, the average of the results is the number I started with. Can you tell for sure what the number he has in mind? Why ?
Thanks,
Brian
Click here to see answer by edjones(3291)  |
Question 102407: Census taker is asking Mrs. Smith
ct: how old are your children?
ms: I have no 1 year olds, the sum of their ages equals our house number, the product of their ages is 90
ct: this is not enough information
ms: you are right, the kid across the street is older than my oldest
How old are Mrs. Smith's children
Click here to see answer by bucky(1732)  |
Question 101791: My ID number is quite remarkable. It's a 9-digit number with the digits 1-9 appearing only once. The entire number is divisible by 9. If you remove the last digit, the remaining 8-digit number is divisible by 8. If you remove the last digit again, you are left with a 7-digit number divisible by 7. Again remove the last digit to have a 6-digit number divisible by 6. This process continues all the way down to one digit. What is my ID number?
Click here to see answer by bucky(1732)  |
Question 102885: I am thinking of three consecutive positive numbers. If I multiply the first with the third and then add the second, the result is 41. Let X be the smallest number.
This is how far I have made, but I don't think I'm doing it right.
x
x+1
x+2
x+x+1+x+2=41
3x+3=41
3x+3-3=41-3
3x=38
x=38/3
Click here to see answer by doukungfoo(195)  |
|
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
|
| |