The number of olives and number of tomatoes that Jack bought are respectively 0.75 pounds and 3 pounds.
Let the number of olives be x. Now, Jack bought 4 times as much tomatoes as olives. Thus;
Number of tomatoes = 4x
Cost of Olives = $7 per pond
Cost of Tomatoes = $2 per pound
Thus;
7x + 2(4x) = 11.25
15x = 11.25
x = 11.25/15
x = 0.75 pounds
Amount of tomatoes = 4 * 0.75 = 3 pounds
Thus, we conclude that the number of olives and number of tomatoes that Jack bought are respectively 0.75 pounds and 3 pounds.
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