chris is cutting a roll of cookie dough into piecies that are 3/4 ft thick.if the roll is 3 3/4ft long, how many pieces can he make
15/4/(3/4)
15/4*(4/3) = 5
To find out how many pieces Chris can make from the roll of cookie dough, we need to divide the length of the roll by the thickness of each piece.
First, let's convert the mixed number 3 3/4 into an improper fraction. To do that, we multiply the whole number (3) by the denominator (4), then add the numerator (3), and put the result over the denominator.
3 * 4 + 3 = 12 + 3 = 15
So, 3 3/4 is equal to 15/4.
Now, we can divide the length of the roll (15/4 ft) by the thickness of each piece (3/4 ft).
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.
(15/4 ft) ÷ (3/4 ft) = (15/4 ft) * (4/3 ft)
The ft unit cancels out, and we are left with:
15 * 4 = 60
-------------
4 * 3 = 12
So, Chris can make 60 pieces from the roll of cookie dough.