Wayne has a recipe on 3 inch by 5 inch index card that he wants to enlarge to 15 inches long. how wide will the enlargements be?

9 in wide will the enlarge.

Step-by-step explanation:

Wayne has a recipe on 3 inch by 5 inch index card

Length and width of index card varies directly.

If we enlarge the length their width would be definitely enlarge.

Initial L = 3 in and Width = 5 in

where, L=3 and W=5

Substitute L and W into formula

3=5k

We need to find L when W=15

Thus, 9 in wide will the enlarge.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.