3√10 x 2√15 = i need the steps too please it’s for algebra 2.
1 answer:
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From the question, we know that the solutions of the system 
is (14,6), which means the speed of the the boat in calm water, 
, is 14
, and the speed of the current, 
, is 6. To summarize:
and 
We also know that w<span>hen the boat travels downstream, the current increases the speed of the boat; therefore to find the speed of the boat traveling downstream, we just need to add the speed of the boat and the speed of the current:
</span>
<span>
Similarly, to find the the speed of the boat traveling upstream, we just need to subtract the speed of the current from the speed of the boat:
</span>
<span>
We can conclude that the correct answer is </span><span>C. The team traveled at 8 km per hour upstream and 20 km per hour downstream.</span>
We also know that w<span>hen the boat travels downstream, the current increases the speed of the boat; therefore to find the speed of the boat traveling downstream, we just need to add the speed of the boat and the speed of the current:
</span>
<span>
Similarly, to find the the speed of the boat traveling upstream, we just need to subtract the speed of the current from the speed of the boat:
</span>
<span>
We can conclude that the correct answer is </span><span>C. The team traveled at 8 km per hour upstream and 20 km per hour downstream.</span>