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Secondary 1 | Maths
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Can someone pls help m explain
Like I saw the working when u do the working after exchanging it becomes
$1 = 2x - 3
50 cents = x + 6
But like why X+6???
Date Posted: 3 months ago
Views: 72
Let X be the number of 50 ¢ coins.
Then,
no. of $1 coins = 2X
no. of 50¢ coins = X
3 × $1 = $3 = 6 x 50¢
After the exchange, you will get
no. of $1 coins = 2X - 3
no. of 50¢ coins = X + 6
Remember that this is in terms of NUMBER of coins. Hope this helps! :)
Then,
no. of $1 coins = 2X
no. of 50¢ coins = X
3 × $1 = $3 = 6 x 50¢
After the exchange, you will get
no. of $1 coins = 2X - 3
no. of 50¢ coins = X + 6
Remember that this is in terms of NUMBER of coins. Hope this helps! :)
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Hope this helps
Date Posted:
3 months ago
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