Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Primary 4 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Please help
Date Posted: 5 years ago
Views: 2070
Let x be the number of marbles Zara has.
Then, Yaozhou has 3x marbles.
Let y be the number of marbles Xavier has.
We can form 2 linear equations:
3x + y = 438
x + y = 204
As we can see, 2x = 438 - 204 = 234.
x = 117
So, the number of marbles Xavier has is 204 - 117 = 87.
Then, Yaozhou has 3x marbles.
Let y be the number of marbles Xavier has.
We can form 2 linear equations:
3x + y = 438
x + y = 204
As we can see, 2x = 438 - 204 = 234.
x = 117
So, the number of marbles Xavier has is 204 - 117 = 87.
Hi thanks but my girl has not learn algebra yet at P4
Oh I'm so sorry.
You can use the bar method, by replacing x and y with different bars to make it show more clearly.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
https://youtu.be/O8fvQ0IL6Ak. Steps by steps video presentation of the above question to help you to understand how to solve the question using model method.
Date Posted:
5 years ago
360 Tutoring Program