Answer:
She uses 243 beads for the 5th string.
Step-by-step explanation:
In this problem, we can see a pattern. If she triples the number of beads in each of the next strings, that means that we just take the last number and multiply by 3. If the first string uses 3, then:
The second uses 9, 3 * 3 = 9
The third uses 27, 9 * 3 = 27
The fourth uses 81, 27 * 3 = 81
And the 5th uses 243, 81 * 3 = 243.
Answer:
(-6,6)
Step-by-step explanation:
B. 3m+4 and m+4+2m
3(1)+4 (1)+4+2(1)
3+4 5+2
7 7
3(4)+4 (4)+4+2(4)
12+4 8+8
16 16
Answer:
-26 i think
Step-by-step explanation:
Answer:
Alexa drove an average of 52 miles an hour (mph).
Step-by-step explanation:
First, identify what you know:
1) Alexa drove 104 miles.
2) Alexa drove 104 miles in 2 hours.
So, we need to calculate how many miles she traveled in a single hour! To do this, we simply divide the number of miles driven, by the time driven.
104 miles/2 hours = 52 mph
On average, Alexa drove 52 mph, however, this is ONLY the average. It doesn't mean she drove 52 mph the entire time. She may have driven faster for 20 minutes, and then slower for 30. 52 mph is just the average speed.
Hope this helps! :)
