Answer:
54 is the answer
Step-by-step explanation:
18 times 3
Answer:
x = 6 y = -9
Step-by-step explanation:
8x +2y = 30
-7x + 2y =24
x= 6
8(6)
48 + 2y =30
-48. -48
2y = -18
÷2. ÷2
y = -9
Answer:
10400 lb
Step-by-step explanation:
First find the volume of the water in the pool: It is V = (length)(width)(height).
Here, V = (25 yds)(10 yds)(2/3 yd), or (500/3 yds³.
Then multiply this result by the unit rate (62.4 lb / ft³).
The result is 10400 lb. This is the weight of the water in the pool.
Hopefully you are able to clearly see the steps I have taken toward solving this problem in the attachment. In case you have trouble understanding what a reciprocal is, the reciprocal of a number is simply the number flipped. So, if you are given 1/2 and asked what the reciprocal is, it would be 2/1, or just 2. That being said, if you are given a whole number, simply remember that a whole number is ALWAYS equal to itself over one. So, in this case, the "sum of a number and its reciprocal" would be n +
1/n