Question

Tracy has to buy comic books to pay for a movie ticket. Each comic book costs 10$. Write an inequality that can be used to determine how many comic books, b, tracy can buy.

Answer 1

$35 - 3b is greater or equal to $10

Explanation:

Remember that:

Dollars spent on an item = (cost of one item)*(number of items), so –

Dollars spent on comic books = $3b

“Tracy has $35 to buy comic books and to pay for a movie ticket” means

(Money spent on comic books) + (money spent on movie ticket) ≤ $35

(Money spent on comic books + $10 ≤ $35

$3b + $10 ≤ $35 [just substituting values]

Now, we must modify the inequality, so remember the rules –

$35 ≥ $3b + $10 [reverse right-to-left reverses the sense of the inequality;

$35 is greater or equal to the total amount Tracy can spend]

$35 - $3b ≥ $10 [subtract positive 3b from both sides

keeps the sense of the inequality]

Answer 2

c=b

Explanation:

b is not equal to c.