Question
One king melon cost 4 times as much as one persimmon. Mrs Zhang bought 3 king melons and 2 persimmons for $15.40. How much would 10 king melons and 7 persimmons cost? Express the answers to 2 decimal places.
3 m

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One king melon cost 4 times as much as one persimmon. Mrs Zhang bought 3 king melons and 2 persimmons for $15.40. How much would 10 king melons and 7 persimmons cost? Express the answers to 2 decimal places.