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primary 5 | Maths
| Decimals
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Not sure how to do pls help
Date Posted: 3 months ago
Views: 80
P = Cost of pear, M = Cost of mango
7 P + 7 M = 10 P + 6 M
What is the same on both sides?
7P
So, you can eliminate 7P on both sides
Leaving you,
7 M = 3P + 6 M
From here, we can see that 1M = 3P, which also means that the cost of one mango is three times the cost of one pear. (can draw model to visualise)
1 M = 3 units and 1 P = 1 unit.
The difference in units is 3-1 = 2
The difference in cost of pear and mango is $1.50
Thus, 2 units = $1.50
From here, you can find the cost of each pear (1 unit).
Hope this helps!
7 P + 7 M = 10 P + 6 M
What is the same on both sides?
7P
So, you can eliminate 7P on both sides
Leaving you,
7 M = 3P + 6 M
From here, we can see that 1M = 3P, which also means that the cost of one mango is three times the cost of one pear. (can draw model to visualise)
1 M = 3 units and 1 P = 1 unit.
The difference in units is 3-1 = 2
The difference in cost of pear and mango is $1.50
Thus, 2 units = $1.50
From here, you can find the cost of each pear (1 unit).
Hope this helps!
See 1 Answer
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Substitution:)) simultaneous eqn
Date Posted:
3 months ago
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