5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
Answer:
2 with the second power??
Step-by-step explanation:
if you have two with the second power II exponents will multiply it by itself so the number gradually gets larger each time
20 is the answer to the question you asked.
Answer:
idk I need the answer too
Step-by-step explanation:
:P
<h3>
Answer:</h3>
B) 6 hours
<h3>
Step-by-step explanation:</h3>
Let h represent the total trip time. Then h/2 is the time spent traveling at each speed. The distance covered is ...
... distance = speed · time
The sum of the distances in each mode is the total distance.
... 1020 = 55·h/2 +285·h/2
... 2040 = h·(55+285) . . . . multiply by 2
... 2040/340 = h = 6 . . . . . . . divide by the coefficient of h
The trip took a total of 6 hours.
