(20x2-7x-3)-(9x2-12x-5)
1 answer:
You might be interested in
Rachel paid $33.60 for 12 rolls.
Unit rate paid by Rachel =
= 2.8
From table,
Kevin paid $6.40 for 2 rolls.
Unit rate paid by Kevin =
= 3.20.
Check:
Kevin bought 5 rolls for $16
5 × 3.2 = 16
He also bought 8 rolls for $25.6.
8 × 3.2 = 25.6.
If we compare the unit rates paid by Rachel and Kevin,
Rachel's unit rate is <u>less</u> than Kevin's because <u>3.2</u> is greater than <u>2.8</u>.