Posted by Haydee on Saturday, August 19, 2006 at 11:42pm.
I am confused need help
a computer store sold a total of 300 items last month. the store sold six times as many hard drives as they did CD-RoM drives, and half as many floppy drives as hard drives. Based on this information,, how many of each item were sold?
Let X = number of hd.
Y = number of cd
Z = number of fl/d.
=======================
You know:
X + Y + Z = 300
The problem tells you that the store sold six times as many hard drives as cd Rom so you know 6Y = X.
The problem tells you that the store sold 1/2 as many floppy drives as hard drives; therefore, 1/2 X = Z
===============================
Using X + Y + Z= 300, just substitute the value of Y in terms of X (from above which is Y= 1/6 X) and the value of Z in terms of X and solve for X.
I hope this helps. We shall be happy to check your work if you post it.
I really dont understand, i am new at this and have 4 anwser to it dont know which one because dont know how to get to the answer and they are:
1.30hd,90fl/d and 180 cd
2.40",20" and 240 "
3.180hd,90fl, and 30cd
4, 240hd, 20fl,and 40cd
My problem is how to get this anwser, could u explain to me how ge to the anwer of course knowing the anwer, i will understand.
If the store sold 1 cd / 6x as many hd = 6 / half as many floppy = 3 / 1 + 6 + 3 = 10.
They are sold in ratios of 10.
divide 10 into 300 etc etc dose this help.
mike
thanks i still dont get it but i am working on it. ok thanks again.
Obviously you have interpreted four different ways and three of those ways are not right. Do what I suggested and post your work so we can give you some guidance as to where you are going wrong. I have given you the three equations you need to solve the problem; the remainder is just arithmetic. I don't want to work the problem for you. I want you to understand how to do the problem.
Finding the area of a rectangle with 5 as one side and x+3 on the other.
Hey i said i love math no go screw a duck!
- math - Gabrielle, Tuesday, April 22, 2008 at 10:27pm
A computer store sold a total of 300 items last month. The store sold six times as many hard drives as they did CD-ROM drives, and half as many floppy drives as hard drives. Based on this information, how many of each items were sold?
- math - Anonymous, Friday, August 1, 2008 at 10:50am
C
- math - Anonymous, Monday, September 24, 2012 at 1:27pm
c
Answer this Question
Related Questions
math - a computer store sold a total of 300 items last month. the store sold six...
repost - computer store sold total of 300 items last month the store sol six ...
Math - A computer store sold a total of 300 items in a month, and sold six times...
business math - a computer store sold 300 items -store sold 6 times asa many ...
math - A computer store sold a total of 300 items last month. The store sold six...
math - Last month a store sold 4 times as many tapes as CDs. If the total ...
Math - Marx clothing store is selling a lot of items. On monday 495 items were ...
Math - In a month a stereo store sold %17,500 worth of VCRs which, was 28% of ...
math - A textbook store sold a combined total of 315 physics and chemistry ...
Algebra - a sporting goods store sold twice as many t-shirts as shorts. T-shirts...
For Further Reading
