Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 2 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
need help for question d and e
Date Posted: 4 years ago
Views: 341
2/w = 4/5
cross-multiply w and 5
2/w x w = 4/5 x w
2 = 4w/5
2 x 5 = 4w/5 x 5
10 = 4w
w = 2.5
cross-multiply w and 5
2/w x w = 4/5 x w
2 = 4w/5
2 x 5 = 4w/5 x 5
10 = 4w
w = 2.5
20/(2y-1) = 4
cross-multiply (2y-1) to the right side,
20/(2y-1) x (2y-1) = 4 x (2y-1)
20 = 8y - 4
24 = 8y
y = 24/8 = 3
.
.
.
cross-multiply (2y-1) to the right side,
20/(2y-1) x (2y-1) = 4 x (2y-1)
20 = 8y - 4
24 = 8y
y = 24/8 = 3
.
.
.
See 1 Answer
360 Tutoring Program