Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Secondary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
i dont get the 2x3x3xm=(2x3x5) x (2x3x5)
m = 2 x 5 x 5 pls explain
Date Posted: 11 months ago
Views: 143
For a number to be perfect cube x³.
The product of prime number, the index notation must be multiple of 3.
Example a³ × b⁶ × c⁹
For 540 = 2² × 3³ × 5
If 540 × m = to be perfect cube.
(540) × (m) = (2² × 3³ × 5) × (2 × 5⁵) to get
2³ × 3³ × 5³
Therefore, m = 2×5² = 50
The product of prime number, the index notation must be multiple of 3.
Example a³ × b⁶ × c⁹
For 540 = 2² × 3³ × 5
If 540 × m = to be perfect cube.
(540) × (m) = (2² × 3³ × 5) × (2 × 5⁵) to get
2³ × 3³ × 5³
Therefore, m = 2×5² = 50
thank u
See 1 Answer
Check on comments.
360 Tutoring Program