Cole paid $24 for two calculators and one pack of pens. kai paid $45 for three calculators and two packs of pens. cole and kai both paid $6 for each pack of pens. how much more did kai pay for each calculator?

$2.00 more.

gathered info from question:

Kai paid $45

Cole paid $24

It is $6 for each pack of pens

So I did 24- 6 (pack of pens) = 18 (what he used for calculators) and then did  18/2 because he bought two calculators. He paid 9 dollars for each calculator

Kai bought two packs of pens = 12 dollars. 45-12=33, how much he used for the calculators. He bought three calculators so I did 33/3=11. He used 11 dollars for each calculator.

11-9=2.

Kai paid $2.00 more than Cole.

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geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584