1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
77julia77 [94]
3 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]3 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

You might be interested in
Given: ∆ABC, m∠C = 90° CB = 8, m∠B = 38º Find the area of a circumscribed circle. Find the area of the inscribed circle.
vitfil [10]

Answer:

Circumscribed circle: Around 80.95

Inscribed circle: Around 3.298

Step-by-step explanation:

Since C is a right angle, when the circle is circumscribed it will be an inscribed angle with a corresponding arc length of 2*90=180 degrees. This means that AB is the diameter of the circle. Since the cosine of an angle in a right triangle is equivalent to the length of the adjacent side divided by the length of the hypotenuse:

\cos 38= \dfrac{8}{AB} \\\\\\AB=\dfrac{8}{\cos 38}\approx 10.152

To find the area of the circumscribed circle:

r=\dfrac{AB}{2}\approx 5.076 \\\\\\A=\pi r^2\approx 80.95

To find the area of the inscribed circle, you need the length of AC, which you can find with the Pythagorean Theorem:

AC=\sqrt{10.152^2-8^2}\approx 6.25

The area of the triangle is:

A=\dfrac{bh}{2}=\dfrac{8\cdot 6.25}{2}=25

The semiperimeter of the triangle is:

\dfrac{10.152+6.25+8}{2}\approx 24.4

The radius of the circle is therefore \dfrac{25}{24.4}\approx 1.025

The area of the inscribed circle then is \pi\cdot (1.025)^2\approx 3.298.

Hope this helps!

6 0
4 years ago
Each triangle in the net below has a base of 6 centimeters and a height of 8 centimeters. What is the surface area, in square ce
Misha Larkins [42]

The area of a triangle is 1/2 x base x height.

The area of the triangle is 1/2 x 6 x 8 = 24 square cm.

There are 4 identical triangles so 24 x 4 = 96 square cm.

The area of the square base = 6 x 6 = 36 square cm.

Total area = 96 + 36 = 132 square cm.

5 0
3 years ago
How do you solve 10+5(3x-4)=2x+7
Taya2010 [7]

Answer:

x=1\dfrac{4}{13}

Step-by-step explanation:

Given the equation

10+5(3x-4)=2x+7

Use distributive property:

10+5\cdot 3x-5\cdot 4=2x+7\\ \\10+15x-20=2x+7

Use commutative property to rewrite the equation:

15x+10-20=2x+7

15x-10=2x+7

Add 10 th both sides:

15x-10+10=2x+7+10\\ \\15x=2x+17

Subtract 2x:

15x-2x=2x+17-2x\\ \\13x=17

Divide by 13:

x=\dfrac{17}{13}=1\dfrac{4}{13}

4 0
4 years ago
Solve for x x squared plus 4X minus 21 equals 0
suter [353]

Answer:

x = -7 and x = 3

Step-by-step explanation:

x² + 4x - 21 = 0 factors as follows:  (x + 7)(x - 3) = 0.

Then x = -7 and x = 3.

3 0
3 years ago
Read 2 more answers
Solve the exponential equation:
seraphim [82]

Step-by-step explanation:

2⁵ˣ = 8ˣ⁺²

2⁵ˣ = (2³)ˣ⁺²

2⁵ˣ = 2³ˣ⁺⁶

5x = 3x + 6

2x = 6

x = 3

6 0
3 years ago
Other questions:
  • Can someone tell me how to do this one plz
    15·1 answer
  • Round each number to the nearest tenth. What is the best estimate for the answer to 294.32 – 198.37?
    12·1 answer
  • What is the solution of the equation 4(3-x)^4/3-5=59
    6·2 answers
  • Which choices are common factors of the numerator and denominator of 18/24
    12·1 answer
  • Choose all the fractions that are equivalent to 4/8. (Click all that apply.)
    14·2 answers
  • A music store marks up the instruments it sells by 30%.
    6·2 answers
  • Reba used 12 centimeters of tape to wrap 3 presents.How much tape will Reba need in all if she has wrap 6 presents?
    8·1 answer
  • Need help on this to!! thanks <33
    13·2 answers
  • 2. Determine the cost to cover the top of the fire pit with a piece of sheet metal that costs $25 per square foot. (6 points)
    14·1 answer
  • Use your understanding of transformations and key features to write the slope-intercept equation of this linear function.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!