For a certain experiment, a student requires 100 cubic centimeters of a solution that is 8% HCI

Question:

For a certain experiment, a student requires 100 cubic centimeters of a solution that is 8% HCI. The storeroom has only solutions that are 15% HCI and 5% HCI. How many cubic centimeters of each available solution should be mixed to get 100 cubic centimeters of 8% HCI?

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