Ms. Witt bought 4 boxes of paint with 5 jars of paint in each box. Ms. Karp bought 3 boxes of paint with 6 jars in each box. Who bought more jars of paint? How many more?

Ms. Witt bought more.

Ms. Witt bought 2 more jars than Ms. Karp.

Step-by-step explanation:

Given: Ms. Witt bought 4 boxes of paint with 5 jars of paint in each box.

So, total jars she bought = 4 x 5 = 20

Ms. Karp bought 3 boxes of paint with 6 jars in each box.

So, total jars she bought = 3 x 6 = 18

Clearly , 20> 18

That means, Ms. Witt bought more.

Also, 20-18 =2

So, Ms. Witt bought 2 more jars than Ms. Karp.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,