There are 12 iron-on patches in 4 packages. Each package has the same number of patches. Write a rule words for the number of packages Leah needs to buy to get x patches. Then write the rule as an algebraic expression.

Following are the calculation to an algebraic expression:

The number of patches included in each package is computed as follows:

Therefore, the number of packages is ""

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Step-by-step explanation:

#Number of patches per package is calculated as:

-Let y be the number of packages.

-Let x be the number of packages needed. We can express this by diving the number of patches diving the number of patches needed by the number of patches per package,:

Hence, the number of packages is expressed as

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step-by-step explanation:

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart