Solve using equivalent ratios.
5. wayne has a recipe on a 3-inch-by-5-inch index card that he wants to
enlarge to 15 inches long. how wide will the enlargement be?

The width of the new card is 9 inches.

SOLUTION:

Given, we have to solve using equivalent ratios.  Wayne has a recipe on a 3-inch-by-5-inch index card that he wants to enlarge to 15 inches long.  

We have to find width of the enlargement

Now, dimensions of card is

Let the new width of card be n inches .

So, New dimensions of card is

Then, equivalent ratio is

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level