More than half of the students live at least 1/2 mile from school
Answer:
The answer is C or the third one
Step-by-step explanation:
= [1- (3/15)]/(1/10 + 1/15)
= (4/5)÷(1/6)
= 24/5
= 4 4/5
Answer:
Diane
Step-by-step explanation:
Alex, Anita, Diane, Chris, Rob
Step-by-step explanation:
an arithmetic sequence means that every new term is the old term plus a constant number.
in our case that constant is +50.
and our starting value a0 = 250
so, the first 4 terms are
$250, $300, $350, $400
for the function formula we know
a0 = $250
a1 = a0 + 50 = 250 + 50 = $300
a2 = a1 + 50 = a0 + 50 + 50 = a0 + 2×50 = $350
a3 = a2 + 50 = a0 + 3×50 = $400
so, we see
an = a0 + n×50 = 250 + 50n
therefore,
f(n) = 250 + 50n
after 9 months saving we reached a9, meaning n=9.
f(9) = 250 + 50×9 = 250 + 450 = $700
