Question

Dave has $15 to

spend on an $8 book and two
birthday cards (c) for his friends. How much can
he spend on each card if he buys the same card
for each friend? (inequality)

Answer 1

Hello there! Given Dave only has $15 and the book is $8, we can assume he already paid for the book:

$15 - $8 = $7

Because Dave has $7 left, we can use the following inequality to show that he can spend up to $7 at maximum on both cards:

c = $7

Given Dave buys 2 cards, we can divide 7 by 2 to find how much Dave spends on each card:

7 divided by 2 gives us 3.50

Hence, Dave can spend $3.50 on each card.

Hope this helps!