Twenty pounds of a salt-water solution contains fifteen percent salt. How much salt is in the water?
2 answers:
Answer:
The salt is in the water be 3 lb.
Step-by-step explanation:
Formula
As given
Twenty pounds of a salt-water solution contains fifteen percent salt.
Let us assume that the salt is in the water be x.
Percentage = 15%
Total value = 20 pounds
Put in the formula
x = 3 pounds
or
x = 3 lb
Therefore the salt is in the water be 3 lb.
You might be interested in
Answer:
Sample mean =119.42
Median = 92
25% trimmed mean = 102.42
10% trimmed mean = 95.69
Step-by-step explanation:
Data in increasing order :
12 13 20 23 31 35 40 43 48 49 58 62 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141 147 159 161 168 183 207 249 262 289 323 388 513
Total no. of observations = 50
Sample mean =
= = 119.42
Median: Since we have even number of observation
Median = =
= 92
10% Trimmed Mean: We remove 5 values from each side
Trimmed set = 35 40 43 48 49 58 62 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141 147 159 161 168 183 207 249
Trimmed mean = =
= 102.42
25% Trimmed Mean: We remove 12 values from each side.
Trimmed set = 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141
Trimmed mean = =
= 95.69