Harry can rake the leaves in the yard 8 hours faster than his little brother Jimmy can.
<span>If they join to work together they can complete the job in 3 hours. </span>
<span>1/x + 1/(x - 8) = 1/3 </span>
<span>3(x - 8) + 3x = x(x - 8) </span>
<span>x^2 - 14x + 24 = 0 </span>
<span>(x - 12)(x - 2) = 0 </span>
<span>Solutions: </span>
<span>x = 2 </span>
<span>x = 12 </span>
<span>Jimmy can complete the job on his own in 12 hours.</span>
Step-by-step explanation:
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Area is base x height over 2
64 x 7.3 = 467.2
467.2/2 = 233.6
the area is 233.6m^2
Answer:
y= (-3x +14.50) / 8
Step-by-step explanation:
Isolate the 8y
Subtract 3x from both sides
8y = -3x + 14.50
Then, isolate the left to only y
y= (-3x +14.50) / 8
Answer:
1)open 2)false 3)5
Step-by-step explanation:
