If I’m correct I’m pretty sure it is X=5 and Y=-9
It's a Fibonacci sequence sum of two prior (Xn=Xn-1+Xn-2). X6=X6-1+X6-2
X6=X5+ X4
So the answer is 59.
3, 10, 13, 23, 36, 59…
Answer:
a) 2 1/8 miles per hour
b) 8/17 hours per mile
Step-by-step explanation:
To find the rate in mile per hour, divide miles by hours:
(5 2/3 mi)/(2 2/3 h) = (17/3 mi)/(8/3 h) = 17/8 mi/h = 2 1/8 mi/h
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To find the rate in hours per mile, invert that number:
1/(17/8 mi/h) = 1/((17 mi)/(8 h)) = (8 h)/(17 mi) = 8/17 h/mi
Answer:
Adult tickets cost $80, children ticket cost $40
Step-by-step explanation:
Given data
let the number of adults be x
and the number of children be y
so
x+y= 40-------------1
The adult tickets
cost 14 dollars and the children’s tickets cost 12 dollars.
14x+ 12y= 720-------2
solve 1 and 2
x+y= 40
14x+ 12y= 720
from 1
x= 40-y
put this in 2 in place of x
14(40-y)+12y= 720
560-14y+12y= 720
collect like terms
-2y= 720-560
-2y= 160
y= -160/2
y= -80
put y= 80 in 1
x+80= 40
x= 40-80
x= -40
Hence Adult tickets cost $80, children ticket cost $40
Answer:
D. $500
Step-by-step explanation:
