Rocky has 2 1/4 cups of flour in her pantry. If she needs 1 /2 cups to make a batch of cupcakes, how many batches will she be able to make? Practice

if she has 2 1/4 and needs 1/2 as many times as possible the answer is she can make two batches since 1/2x2=2 leaving a remainder of 1/4

\large 1\frac{1}{2}

Step-by-step explanation

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

step-by-step explanation: