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77julia77 [94]
2 years ago
14

A 10-pound bag of grass seed will cover an area of about 4000 square feet. The relationship between pounds (p) of grass seed and

area (a) can be written as a =kp. What is the value of k?
Mathematics
1 answer:
UkoKoshka [18]2 years ago
8 0

k is 400 square feet per pound

Step-by-step explanation:

In this problem, we know that a 10-pounds bag of grass seed covers an area of about 4000 square feet.

We can write the relationship between pounds of grass seed (p) and area (a) as

a=kp

where k is the constant of proportionality between the two variables.

We can find the value of k simply by re-arranging the equation and substituting the values of a and p.

Re-arranging the equation,

k=\frac{a}{p}

And substituting the values of a and p,

k=\frac{4000}{10}=400 ft^2/p

Which means k is equal to 400 square feet per pound.

Learn more about equations:

brainly.com/question/11306893

brainly.com/question/10387593

#LearnwithBrainly

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Karolina [17]

Answer:

The amount needed as a one-time deposit to earn $7,500 in 3 years is <em>$4388.17</em>

Step-by-step explanation:

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One of the most-used formulas to compute present and future values is

FV=PV(1+r)^{n}

Where FV is the future value, PV is the present value, r is the interest rate and n is the number of periods. It's vital to keep in mind that r and n must be referred to the same compounded time, e.g. r is compounded monthly and n is expressed in months

The question requires to compute the PV needed as a one-time deposit to earn a future value of $7,500 in 3 years at a 1.5% rate compounded monthly.

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n=3*12=36 months

We converted n to months because r is compounded monthly . The formula

FV=PV(1+r)^{n}

must be managed to make PV isolated

PV=FV(1+r)^{-n}

PV=7,500(1+0.015)^{-36}

PV=\$4388.17

Answer: The amount needed as a one-time deposit to earn $7,500 in 3 years is $4388.17

3 0
2 years ago
In a school building, there are 8 exterior doors and 12 stairways to enter the second floor. Find a total number of ways to reac
Kazeer [188]
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Think of it in groups.

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3rd door and 12 possible sets of steps
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Using the given formula T = LS

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2 years ago
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Reil [10]

Answer:

<em>c=6, d=2</em>

Step-by-step explanation:

<em>Equations </em>

We must find the values of c and d that make the below equation be true

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The values are

\boxed{c=6,d=2}

3 0
2 years ago
Read 2 more answers
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klasskru [66]
I think the average value of the function i = 15(1 - e1/2t) from t = 0 to t = 4 is <span>C. 7.5(2 + e-2). The correct answer is letter C.</span>
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