A soccer coach bought 16 medium T-shirts and 9 large T-shirts. Each T-shirt was the same price. Onaje and Paula tried to write equivalent expressions to represent the total price of the T-shirts. The expressions they wrote are shown below.

Onaje: 16t + 9t = t (16 + 9) = 25t

Paula 16t + 9t = 16 + 9 + 2t = 25 + 2t

Whose expression is correct? Why is the other expression incorrect?

Onaje's is correct. Paula's is incorrect because the "t" is being multiplied not added in the correct equation therefore you can't end up with 2t

Expression written by Onaje is correct.

Step-by-step explanation:

Soccer coach bought 16 medium T-shirts and 9 large T-shirts.

Each T-shirt cost the same.

If $t is the cost of one T-shirt, then the cost of medium shirt = $16t

Cost of the large T-shirts = $9t

Total cost of the T-shirts = $ (16t + 9t) = $25t

Since Onaje wrote the same expression therefore, Onaje is correct.

While Paula wrote the expression showing the total cost as (25 + 2t). Here Paula has not added the costs of large and medium T-shirts correctly.

Which is incorrect.

Therefore, expression written by Onaje is correct.