Leyan bought 2 3/4 pounds of apples for $1.32 per pound, 1 1/2 pounds of peaches for $1.20 per pound, and some tomatoes, all from a grocery store. The total cost of his purchase was $9.63. . How much money did Leyan spend on tomatoes?

$4.20

Explanation: First, we need to know how much was spent on apples and peaches.

The equation for the amount spent on apples is $1.32/1 lbs=$x=(2 3/4 lbs), where 2 3/4 * 1.32=$3.63

As for peaches, we have $1.20/1 lb=$x/(1.5 lbs), where 1.5 * 1.20=$1.80

Finally, $9.63-(3.63+1.80)=$4.20

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