Agrocery store has 12 lb of trail mix that is 10% banana chips. the store's manager would like to add banana chips to bring the new mix up to 25% banana chips. write and solve a system of equations to find out how many pounds of banana chips manager needs to add.

10% of the 12 lb mix is banana chips, which comes out to 1.2 lb of banana chips. If is the amount of banana chips the manager will add to the mix, then the new mix's total weight would be , and the manager wants 25% of this to consist of banana chips. This means the final amount of banana chips, , should come out to 25% of . In other words,

so the manager should add 2.4 lb of banana chips.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

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