40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
Step-by-step explanation:
0.5 ( r + 2.75 ) = 3
r + 2.75 = 3 / 0.5
r + 2.75 = 6
r = 6 - 2.75
r = 3.25
7.5% of 160.
12 / 160 = 0.075
Move decimal 2 places to the left to convert it to a percent, or multiple by 100.
0.075 * 100 = 7.5
7.5% is your answer.
28.
2 to the third power is 8. Therefore, the answer is 28.
Hope this helps!
