A restaurant uses #2 3/4# pounds of flour to make a batch of dinner rolls. About how many pounds of flour are needed if #3# batches of dinner rolls are to be made?

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Answer 1 · 2018-03-26T19:21:53

#8 1/4#

First method

#3xx2=6#

#3xx3/4=9/4#

#9/4=2 1/4#

Answer

#6+2 1/4=8 1/4#

Second method

#2 3/4= 2/1 + 3/4 = 8/4 + 3/4 =11/4#

# 3xx11/4=33/4#

Answer

#33/4= 8 1/4#

Answer 2 · 2018-03-26T19:22:54

#8 1/4# pounds of flour.

If you do #2# (the whole number) times #3 = 6#.

Leave that for now, make the #3/4# in a percentage:

#3/4 * 100% = 75%#

Multiply this by #3# and you get #225%#. Make this percentage into a fraction:

#(225%)/(100%) = 2.25= 2 1/4#

Add the two values together:

#6+ 2 1/4 = 8 1/4#

Hope this helps!