Answer:
Two angles are said to be supplementary if they add up to 180 degrees. So the supplement of an angle is obtained by subtracting it from 180. i.e., if x is an angle, its supplement is 180−x
The error is that 9 shouldnt be written as nine it should be written as 3x3 or 3^2. So the answer should be 2^3 x 3^2 because 9 can be divided into even more prime factors of 72.
Answer:
30 pounds
Step-by-step explanation:
Amount of tin in first alloy + amount of tin in second alloy = amount of tin in mixture
0.15 (20) + 0.10 x = 0.12 (20 + x)
3 + 0.10 x = 2.4 + 0.12 x
0.6 = 0.02 x
x = 30
Answer:
49 minutes
Step-by-step explanation:
Given :
Start time = 1:39 p. M
Return time = 2.28 p. M
Time spent Walking dog = difference between the start time and return time
Return time - start time
(2:28 p.m - 1:39p.m) = 49 minutes
Hence, Tiffany spent 49 minutes walking her dog
