Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 5 | Maths
| Whole Numbers
One Answer Below
Anyone can contribute an answer, even non-tutors.
P5 Math Please help! Thanks!
Date Posted: 5 years ago
Views: 259
Difference between buying 7kg and 4kg is 3kg.
For 7kg, she's $9.30 short. For 4kg, she has $6 left.
So after buying 4kg, if she wants to buy another 3kg to make it a total of 7kg, her $6 left is not enough and she needs $9.30 more.
This tells you that 3kg of rice costs
$6 + $9.30 = $15.30
1kg costs $15.30 ÷ 3 = $5.10
For 7kg, she's $9.30 short. For 4kg, she has $6 left.
So after buying 4kg, if she wants to buy another 3kg to make it a total of 7kg, her $6 left is not enough and she needs $9.30 more.
This tells you that 3kg of rice costs
$6 + $9.30 = $15.30
1kg costs $15.30 ÷ 3 = $5.10
See 1 Answer
Money she have:
7 kg of rice - $9.30 or
4 kg + $6
Therefore, 7 kg - 9.30 = 4 kg + $6
3 kg = 6+9.30
3 kg = 15.30
1 kg = 15.30 ÷ 3 = $5.10
Hope this helps
7 kg of rice - $9.30 or
4 kg + $6
Therefore, 7 kg - 9.30 = 4 kg + $6
3 kg = 6+9.30
3 kg = 15.30
1 kg = 15.30 ÷ 3 = $5.10
Hope this helps
Thanks!
360 Tutoring Program