9514 1404 393
Answer:
a) t18,10 + t18,11
b) t24,15 + t24,16
c) t13,6 +t13,7
Step-by-step explanation:
Each term of Pascal's triangle is the sum of the two terms above it in the triangle:
tn,r = t(n-1),(r-1) +t(n-1),r
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a) t19, 11 = t18,10 + t18,11
b) t25,16 = t24,15 + t24,16
c) t14,7 = t13,6 +t13,7
x=16
50+40=90
40-8=32
32/2=16
Lily would spend on each type of activity would be 222 minutes.
