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Mathematics, 23.07.2019 20:40 avlenlestrade

Helena uses a mixture of compost and topsoil in her garden. she purchased a total of 10 cubic yards of compost and topsoil for $180. if compost costs $25 per cubic yard and topsoil costs $15 per cubic yard, how many cubic yards of topsoil did she purchase? 3 4.5 5.5 7

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Helena uses a mixture of compost and topsoil in her garden. she purchased a total of 10 cubic yards...
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