Let x be the times in hours he mowed the lawn and y the time, in hours, he did chores Then
x + y = 3
also 352x + 136y = 570
From the first equation y = 3 - x, Plug this into second equation:-
352x + 136( 3 - x) = 570
216x = 570 - 136(3) = 162
x = 162/216 = 0.75
so he spent 0.75 hours (or 45 minutes) to mow the lawn.
-9 and 4/5-4 and 3/5=-14 and 2/5
I found the answer on the app socratic hope this helps also can u please give me brainliest
To find out how many Salmon Filet's were served, knowing that 80% of the specials were Salmon Filet, and there were a total of 70 specials in total, we need to find what 80 percent of 70 is. That's because that will lead us to our answer.
Since a percent is something over 100 (per 100), 80% is 80/100 which simplifies to 4/5. That means that we have to multiply 70 by 4/5. 70 * 4/5 is equal to 280/5. Since 280/5 equal 56, there were 56 Salmon Filet's served, or C.