Answer:
220.8
Step-by-step explanation:
Equation: x/69=320/100
x is the # your trying to solve, 320 is the percent so that has to be over 100.
Solve: cross multiply
69*320=100x
22080=100x
220.8=x
320% of 69 si 220.8
Answer:
30%
Step-by-step explanation:
% of change = 100 x (6.5-5)/ | 5 |
Answer:
X = {8n – 7n – 1 : n ϵ N}
Y = {49 (n –1) : n ϵ N} — (1) [all terms divisible by 49]
X = {8n – 7n – 1}
= (1 + 7)n – 7n – 1
= 1 + nC1 7 + nC2 72 + ….. + nCn 7n – 7n – 1
= nC2 72 + …… + nCn 7n
= 49 [nC2 + nC3 7 + …. nCn 7n-2] — (2)
From (1) and (2),
X is divisible by 49.
Y has all multiples of 49.
X ⊂ Y
Proportionality, assuming constant rate. 460 dives/12 hours = x dives/3 hours. Solve for x.
Answer: log(x)+log(y)
Step-by-step explanation:
