
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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February 4th, 2015, 10:42 PM  #1 
Member Joined: Feb 2015 From: Planet Zorg Posts: 67 Thanks: 3  Anybody able to offer some guidance to these questions? (Pic inside)
Hey guys, I was wondering if any of you much smarter people than me could offer some assistance in the technique of answering the questions in the image below. It has been a long time since I've had to do anything like this and I'm a bit rusty to say the least I'm just about to make a start so will come back in a little while to see if I have any replies Thank you! 
February 5th, 2015, 01:43 AM  #2 
Math Team Joined: Apr 2010 Posts: 2,780 Thanks: 361 
You're given a start in the exercise; a table and one of the equations for example. Do you understand what you're asked to do? Can you start from there? What have you tried?

February 5th, 2015, 04:57 AM  #3 
Math Team Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 
Have you tried any of these? The first, at least, is just basic arithmetic. You are told that the local hotel charges 280 pounds plus 8 pounds per person, then asked what the cost would be for 25, 35, or 40 people. You understand that this is just 280+ 8(25), 280+ 8(35), and 280+ 8(40), don't you? The pub will charge 220 pounds plus 10 pounds per person. So for 25, 35, or 40 people the cost would be 220+ 10(25), 220+ 10(35), and 220+ 10(40). The second says that the cost for the hotel can be represented by the equation "y= 8x+ 280". Do you see where that came from? The "8" is the cost per person so "8x" is the cost for x people. The added 280 is the fixed cost for the room. You are asked to find the equivalent equation for the pub. What is the fixed cost for the pub? That corresponds to the "280" for the hotel. What is the cost per person for the pub? That corresponds to the "8" for the hotel. It is impossible to know what help you need without knowing what you do understand and can do on this problem. Can we at least assume that you can calculate "280+ 8(25)"? Last edited by skipjack; February 5th, 2015 at 09:20 AM. 
February 5th, 2015, 06:31 AM  #4 
Member Joined: Feb 2015 From: Planet Zorg Posts: 67 Thanks: 3 
Hey guys, Thanks for the early replies! I must apologise, my intention here is to upload the attempt at the questions I have made myself and gain some pointers about where (inevitably) I have gone wrong I'll post up the correct image as soon as I've finished.. Cheers again! 

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