Dad baked a batch of cookies. My brother ate half my mom ate a fourth of the batch. Dad ate 3 and I ate the last two. How many cookie did dad bake? PLEASE help me figure this problem out?

Answer 1

after mom and brother got done, there was 1/4 batch left.

The last 1/4 batch was 5 cookies, so the whole batch was 20.

Answer 2

0.5x + 0.25x + 5 = X

0.75X + 5 = X

5 = X - 0.75X

5 = 0.25X

5/0.25 = X

20 = X

Answer 3

Thank you!