After buying a jacket that cost $47,Marilyn had $6 left in her wallet. Write and solve a subtraction equation to find the amount of money Marilyn in her wallet before she bought the jacket

$53

Step-by-step explanation:

If she bought a $47 and had $6 left how much did she have before she bought the jacket?

?-$47=$6

$47+$6=$53

$53-$47=$6

geometry: triangles

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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+

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