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標題:
Form 2 - Simple Polynomials (3)?
發問:
Bobo has 50 coins, 2h of the coins are 50-cents coin. The number of $1 coin are half that of 50-cents coin. The remaining are $5 coin. Find, in terms of h, (a) the number of each kinds of coins. (b) the total value of the coins.
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最佳解答:
(a) Ans: 50-cents : 2h $1 : h $5 : ( 50 - 3h ) (b) 0.5*2h + 1*h + 5*( 50 - 3h ) = h + h + 250 - 15h = 250-13h Ans: 250-13h dollars
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