Answer:
x = 1
Step-by-step explanation:
Step 1: Combine like terms.
Step 2: Divide both sides by 30.
Step 3: Check if solution is correct.
Therefore, x = 1.
1,260 miles all you have to do is 420x3 because Annie drove 3 times faster.
Answer:
10
Step-by-step explanation:
To figure the mean, add up the numbers, 3+3+6+7+9+12+12+19=71 then divide it by the number of data points 71/7=10.1428571, I rounded it to 10.