View Full Version : Quadratic equation word problems?
daviessv
Oct 31, 2010, 07:19 AM
2 consecuitive whole numbers are x and x + 1. When the product of these numbers is subtracted from 47 times the first number x, the answer is 360. Form an equation in x and solve it to find the two possible pairs of consecutive numbers.
Unknown008
Oct 31, 2010, 07:32 AM
Use this sentence.
When the product of these numbers is subtracted from 47 times the first number x, the answer is 360
First part:
- When the product of these numbers
What is this product?
It is x(x+1)
- 47 times the first number x
What is this? This is simply 47x
- When the product of these numbers is subtracted from 47 times the first number x
This means you have 47x - x(x+1)
- the answer is 360
This means:
47x - x(x+1) = 360
Can you solve it now?