Answer:
Step-by-step explanation:
If f(n) = 8n - 3
f(5) = 8(5) - 3
= 40 - 3
= 37
Answer:
I would say D
A student who studied longer generally did better than a student who studied less.
Step-by-step explanation:
Complete question :
Ray starts walking to school at a rate of 2 mi/h. Ten minutes later, his sister runs after him with his lunch, averaging 6mi/h. Determine take it takes for sister to catch up
Answer:
5 minutes
Step-by-step explanation:
Ray's rate = 2mi/ hr
Time walked before sister starts = 10 minutes = (10/60) = 0.16667 hours
Hence, distance already covered = (rate * time) = (2 * 0.16667) = 0.3333 miles
To catchup :
Let t = Time taken to catch ; At t, distance covered must be the same ; thus ;
0.3333 + (2 * t) = 6 * t
0.3333 + 2t = 6t
0.3333 = 6t - 2t
0.3333 = 4t
t = 0.3333 / 4
t = 0.0833333 hours
t = 0.0833333 * 60 = 5 minutes
x = 20°
<u>The total sum of interior angles in a triangle is 180°</u>
- x + 5 + 7(x) - 5 + x = 180°
- x + 7(x) + x + 5 - 5 = 180°