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.
Answer: 16.96 in
Step-by-step explanation:
2(x-8)=7
Distribute on the left side
2x-16=7
Add 16 to both sides
2x=23
Divide both sides by 2
x=11.5
Final answer: The number is 11.5
Answer:
0
Step-by-step explanation:
Anything times 0 is always 0.
Does not do instrument and sport will be 2 (middle). Then you can go horizontol for does not play sport with the total being 7 (middle right) . 25 - 7 = 18 (top right). 18 - 16 = 2 (top left). 5 + 2 = 7(Bottom left)
Hope it helped because i cant really draw on it. :<