Brad read that you should drink at least 2 quarts of water a day. Yesterday he drank 3 cups in the morning, 1 quart in the afternoon, and 1 pint in the evening. Did Brad drink at least 2 quarts of water? Explain.

yes he drank 2.25 quarts

Step-by-step explanation:

convert the cups to quarts

1 cup = 0.25 quarts

3 cups x 0.25 = 0.75 quarts

convert the pints to quarts

1 pint = 0.5 quarts

add all the amount of water drank together

0.75 quarts + 1 quart + 0.5 quarts =  2.25 quarts

this answer is !

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,