The cost of purchasing grapes is $4.99 per pound plus a shipping fee of $.50 per pound. Is this a proportional or non proportional situation? How do you know?

1 Answer
Jade
Mar 16, 2018

This is a proportional situation.

Explanation:

Here's how :
If you buy 2 pounds,
Cost #=$4.99xx2#
#=$9.98+$.50xx2#
#=$10.98#
(Adding shipping charge)
If you buy 5 pounds,
Cost #=$4.99xx5+$.50xx5#
#=$24.95+$2.5#
#=$27.45#

From these two cases, we see that whenever quantities of grapes increase, the price increases too. Since, they are related, this is a proportional case.

Hope this helps :)

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