Answer:
Step-by-step explanation:
Use the given functions to set up and simplify
8
x
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20
y
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10
8
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20
y
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10
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v
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20
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5
p
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7
z
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5
p
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v
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7
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20
v
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20
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5
p
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7
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5
p
+
v
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7
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20
8
x
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20
y
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10
=
5
p
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v
−
7
z
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20
The are of his backyard is 10.4 times 15.83 or 164.632 yd^2
the sod piecs are 1.33 by 1.33 or 1.78 yd^2
so divide 164.632 by 1.78 or
164.632/1.78=92.5 pieces of sod
if he is buying the sod in pieces, he will have to buy 93 pieces because he can't buy 1/2 sod
3 2/3 hours. Because if you do 2 3/4 times 1 1/3 you get 11/3 which simplifies into a mixed fraction of 3 2/3.
The half life would be about 3 so making the percentage About 25%
