Solve problem below It costs $3.45 to buy 3/4 lb of chopped walnuts. How much would it cost to purchase 7.5 Ibs of walnuts? Show your reasoning (optional)

The cost of the 7.5 lbs of walnuts be $2.16 .

step by step As given

It costs $3.45 to buy  lb of chopped walnuts.

i.e

Now calculate the cost of one pound .

Now calculated the cost of the 7.5 lbs of walnuts .

Cost of 7.5 lbs of walnuts = 7.5 × 0.2875

                                          = $2.16 (Approx)

Therefore the cost of the 7.5 lbs of walnuts be $2.16 .

you answer is a

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have