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.
Answer:
See explanation.
Step-by-step explanation:
- A terminating decimal is a decimal that has an end.
- A repeating decimal is a decimal fraction in which a number, or a group of numbers, is repeated indefinitely.
- Most repeating decimals contain a nine in the denominator, when written in fraction form.
- Both can be written in fraction form.
- Both can have a positive or negative value that can be both large and small.
If you have a rectangle that is 2 by 2 and you dilate it by 2, the sides are now 4 x 4. So:
If you dilate it by a factor of 2, the area is 2^2 (4) times as great
A factor of 3 would have an area of 9 times as much.
Conclusion: square the scale factor to get how much greater the area would be.
Equation: 15 + 6t = 81
Work: 15 + 6t = 81
-15 -15
6t = 66
t = 11
Use the exponent rules
x^a/x^b =1/x^b-a
9^2/9^7 = 1 / 9^7-2 = 1/9^5
1 over 9 to the 5th = 59049
so it would be 1/59049
1 0ver 59049
