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Colt1911 [192]
3 years ago
9

Please help me with these 19 and 20 and tell me what you use to get the answer

Mathematics
2 answers:
ss7ja [257]3 years ago
6 0
36 + h = 75...subtract 36 from both sides
h = 75 - 36
h = 39

-176 = h + (-219)
-176 = h - 219....add 219 to both sides
219 - 176 = h
43 = h
vaieri [72.5K]3 years ago
5 0
36+h=75   (subtract 36 from both sides in order to find h)
h=75-36
h=39

-176=h+(-219)
-176=h-219    (add 219 to both sides in order to solve for h)
43=h
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It will take Mr. Jenkins 1 hr and 20 minutes to cut all the grass.

To know how long it will take Mr. Jenkins to cut all the grass, get the total area of the lawn and divide it by the rate Mr. Jenkins cut the grass.

The area of the lawn can be calculated using the formula for the area of a rectangle given by:

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Using this formula, the grass lawn that is 24 m wide and 30 m long has an area of:

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Meanwhile, the time it will take Mr. Jenkins to cut the grass lawn with an area of 720 m^2 can be computed using the rate.

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3 years ago
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G `( x ) =2x * e^{kx}  + k x^{2} *e^{kx} = \\  = xe^{kx}(2 + kx )
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8 0
3 years ago
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