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
Nuetrik [128]
3 years ago
9

After excavating a lot, workers removed an estimated 7,000 cubic yards of dirt from the area. If this dirt were spread in an eve

n layer over an empty lot with dimensions 30 yards by 64 yards, about how deep, in yards, would the layer of dirt be? Can you help me with this?
Mathematics
1 answer:
kipiarov [429]3 years ago
8 0
V=7,000\ yd^3\ \ \ and\ \ \ V=30\ yd\ \cdot64\ yd\ \cdot x\\ \\30\cdot64\cdot x=7,000\ /:(30\cdot64)\\ \\x= \frac{7\cdot25\cdot4\cdot10}{3\cdot10\cdot16\cdot4} \\ \\x= \frac{7\cdot25}{3\cdot16} \\ \\x= \frac{175}{48}\ [yd] \ \ \ and\ \ \ 1\ yd=36\ in\\ \\\frac{175}{48}\ yd =\frac{175}{48}\cdot 36\ in= \frac{175\cdot3}{4}\ in=131.25\ in
You might be interested in
Calculate mean: 18, 24, 17, 21, 24, 16, 29, 18
aksik [14]

Answer:

20.875

Step-by-step explanation:

18+24+17+21+24+16+29+18=167/8=20.875

5 0
3 years ago
Read 2 more answers
What is the definition of a covalent bond?
Fofino [41]

Answer:

D: A bond between two atoms

Step-by-step explanation:

6 0
2 years ago
The sum of reciprocals of rehman’s ages 3 years ago and 5 years from now is 1/3. Find his present age
Afina-wow [57]

Answer:

His age is 7 years.

Step-by-step explanation:

Let Rehman's  present age be x years.

1 / (x - 3) + 1 /(x + 5) = 1/3

Multiply through by the LCD 3(x - 3)(x + 5):

3(x + 5) + 3(x - 3) = (x + 5)(x - 3)

3x + 15 + 3x - 9 = x^2 + 2x - 15

x^2 + 2x - 6x - 30 + 9 = 0

x^2 - 4x - 21 = 0

(x - 7)(x + 3) = 0

x = 7  (answer).

6 0
3 years ago
Nathaniel drives 45 miles in 30 minutes. If he drove three hours in total at the same rate, how far did he go?
yuradex [85]

Answer:

270 miles

Step-by-step explanation:

45x2=90

90x3=270

8 0
2 years ago
Read 2 more answers
Consider the problem of finding the line of symmetry and vertex of the quadratic equation f(x) =x^2-8x+15 What is the error in t
Jet001 [13]
We are given the quadratic:

f(x)=x^2-8x+15, with a=1, b=-8, c=15.


We know that the x-coordinate of the vertex, which is the point where the line of symmetry passes through is 

                                  \displaystyle{  -\frac{b}{2a}.

Thus, the x-coordinate of the vertex is -\frac{b}{2a} =-\frac{-8}{2\cdot1}= \frac{8}{2}=4.

Thus, the line of symmetry is x=4.


Answer: <span>B. The line of symmetry should have been 4 instead of –4. </span>
6 0
3 years ago
Other questions:
  • While free diving in the ocean Samantha once set a record by diving 525 feet in 3 1/2 minutes how many feet per minute did she d
    6·1 answer
  • Answer the following questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
    12·2 answers
  • Solve 5v2+25=115 , where v is a real number
    6·2 answers
  • If a penny is 0.061 inch thick what is the value of the 6 in the thickness of a penny
    8·1 answer
  • Evaluate the expression 2b + 4a + 3b for a = 0.5 and b = 1/3
    7·2 answers
  • Which system of equations could be graphed to solve the equation below?
    12·1 answer
  • Ill give a brainliest if you can answer all three :))
    9·2 answers
  • HELP<br> ME<br> I WILL BLESS YOU
    5·1 answer
  • Using the quadratic formula, the solutions to a quadratic equation are given by (equation is in image)
    12·1 answer
  • Regina buys eggs at the local supermarket. They are sold in different quantities and at different prices. The quantities and pri
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!