Sula's grandmother visits every fifth month. her grandfather visits every sixth month. the ladt time they both visited in the same month was january, 1995 when will they next both visit in the same month?

July 1997

Step-by-step explanation:

The LCM of 6 and 5 is 30.

30 months after Jan. 1995 is 24 months later + 6 months later.

This is 2 years later + 6 months later.

2 years later is 1997 and 6 months later is July.

Therefore, the answer is July 1997.

geometry: triangles

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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