Answer:
37/40
Step-by-step explanation:
Divide by 5 to both numbers, since they both end in a 0 or 5.
185/5= 37
200/5= 40
I believe this is your answer since it cannot be simplified anymore.
Answer:
x = -18
Step-by-step explanation:
-3/4 x 24 = x
-72/4 = x
x = -18
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:
15
Step-by-step explanation:
Substitute the values so it becomes 25-20+10. 25-20=5, 5+10=15.
The triangle (call it <em>T </em>) has base and height 4, so its area is 1/2*4*4 = 8. Then the joint density function is
where <em>T</em> is the set
(a) I've attached an image of the integration region.
(b) <em>X</em> and <em>Y</em> are independent if the joint distribution is equal to the product of their marginal distributions.
Get the marginal distributions of one random variable by integrating the joint density over all values of the other variable:
Clearly, , so they are not independent.