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beks73 [17]
3 years ago
10

Evan is landscaping his backyard. The yard is shaped like rectangle and measures 80 feet by 70 feet. He wants to spread topsoil

evenly over the entire surface. One load of topsoil will cover 400 square feet, 4 inches deep. How many loads of dirt does Evan need in order to cover his entire yard?
Mathematics
1 answer:
Andrew [12]3 years ago
5 0
80x70= y and then 400 - y= your answer! Ignore the four in. Deep part
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Thanks to a new conservation program, a population with only 200 individuals at the beginning of the year is growing exponential
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0.3 per year

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8 0
3 years ago
Solve 6/×-3 =x/3
Eduardwww [97]

Answer:

X = -3. non-extraneous

Step-by-step explanation:

The given equation is \frac{6}{x-3} =\frac{x}{3}

We cross multiply  to get:

6*3=x(x-3)

Expand and multiply.

18=x^2-3x

x^2-3x-18=0

We factor to obtain:

(x-6)(x+3)=0

x=-3,x=6

Checking for extraneous solutions

Substitute x=-3 \frac{6}{-3-3} =\frac{-3}{3}

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-1=-1

1=1.....Non-extraneous

Checking for x=6

\frac{6}{6-3} =\frac{6}{3}

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2=2....Non-extraneous

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3 years ago
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Answer: 3/4

Step-by-step explanation:

4 0
3 years ago
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