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
andrew11 [14]
3 years ago
12

If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many poun

ds of sand are needed to pour a pool deck of 156 cubic feet?
Mathematics
1 answer:
Radda [10]3 years ago
4 0
This is a ratio problem. You only need solve the ratio of the sand. 

 <u> 48 </u> <u />  =  <u>  n  </u>   <u />  
    1        156

(48)(156) = 1(n)   (cross multiplying)<span> 
</span>
7,488 pounds

To check: The pool deck is 156 times larger than the original amount of concrete so the amount of sand needs to be 156 times more. 



You might be interested in
Solve each inequality then graph the solution
Artist 52 [7]

Answer:

a is x>3

b is _> x/4 +12

c is x>-3

Step-by-step explanation: hope this helps

4 0
3 years ago
The standard form of the equation of a circle is (x−5)2+(y−6)2=1.
Crank

Answer:

(A)x^2+y^2-10x-12y+60=0

Step-by-step explanation:

The standard form of the equation of a circle is given as:

(x-5)^2+(y-6)^2=1

Simplifying the above given equation, we get

x^2+25-10x+y^2+36-12y=1

x^2+y^2-10x-12y+36+25=1

x^2+y^2-10x-12y+61=1

x^2+y^2-10x-12y+60=0

which is the required general form of the equation.

Hence, option A is correct.

3 0
3 years ago
What % of 400 is 85?
quester [9]
21.25% because 85/400 = .2125 which is 21.25%
6 0
3 years ago
A newspaper subscription costs $60. Mary Ellen can get a discount of 25% off through her work. How much will Mary Ellen pay for
AysviL [449]

Answer:

$45

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find Interquartile Range AND Range.
pav-90 [236]

Answer:

IQR: 20

Range: 52

Step-by-step explanation:

IQR = 88 - 68 = 20

Range = 100 - 48 = 52

7 0
3 years ago
Read 2 more answers
Other questions:
  • On Monday Sarah had homework in 7⁄10 of her classes, Tuesday 3⁄5 , Wednesday 9⁄11 , and Thursday 1⁄2 . Which day did she have th
    10·1 answer
  • Elena has $15.25. She was given $2.75. Then she spent $12.99 on a gift for her mother. How much money does Elena have left?
    8·2 answers
  • What is the inverse of the function f(x)= 19/x³
    11·1 answer
  • Simplify the following expression. 4.5908 divided by 0.998
    13·1 answer
  • Forty-two divided by seven plus the quantity three divided by six
    14·1 answer
  • While resaerching facts on the planet earth kate learned that a true earth day
    5·1 answer
  • The radius r of a circle is increasing at a rate of 5 centimeters per minute.
    15·1 answer
  • Solve the triangle.<br> a = ?
    14·1 answer
  • If a tiger can run 500 miles in 10 hours. What is its hourly speed rate or How many miles can it run for an hour?
    15·1 answer
  • (<br> 4<br> <br> −<br> 3<br> )<br> 2<br> ;<br> 1<br> 6<br> <br> 2<br> +<br> 9
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!