Nina's rate
mph
convert 3400 to hours
60mins per hour, 60 seconds per minute
60*60=3600 sseconds per hour
3400/3600=17/18
convert feet to miles
63360/5280=12
12 miles per (17/18) hours
12/(17/18)
multiply by 18/17
216/17=12.70588
about 12.7 miles per hour
Answer: x=3
Step-by-step explanation:
16 = 7 + 3x
9 = 3x
3 = x
:0
Answer:
a30 = 96
Step-by-step explanation:
-20,-16,-12,-8,-4
We are adding 4 each time, which is the common difference
-20+4 = -16
-16+4 =-12
The formula for an arithmetic sequence is
an = a1 +d(n-1) where a1 is the first term and 4 is the common difference
an = -20 +4(n-1)
We want the 30th term
a30 = -20+4(30-1)
a30 = -20 +4(29)
= -20 +116
= 96
