Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Percentage
One Answer Below
Anyone can contribute an answer, even non-tutors.
Need help
Date Posted: 1 year ago
Views: 310
Money Robert and Sam Had: x
Price of computer: y
x + 150 = y (1- 0.1) (10 percent discount)
=> x + 150 = 0.9y
x - 200 = y (1- 0.3)
=> x - 200 = 0.7y
solve simultaneous equations to find x:
x = 1425
Price of computer: y
x + 150 = y (1- 0.1) (10 percent discount)
=> x + 150 = 0.9y
x - 200 = y (1- 0.3)
=> x - 200 = 0.7y
solve simultaneous equations to find x:
x = 1425
See 1 Answer
p6 never learn simultaneous equation
360 Tutoring Program