Answer:
Step-by-step explanation:
So Blakes sleep 8 hours per night during the school day
8 hours/night...................................100%
6.5 hours/night...................................?
6.5*100/8=81.25
the change in percentage is 100-81.25=18.75%
the percentage change is 18.75
if it is easier for you, another method is:
8-6.5=1.5 subtract the original amount to the new amount
1.5/8=0.1875 divide by the original amount
0.1875*100=18.75 find the percentage
Step-by-step explanation:
(a^-7)/a^10 = a^(-7-10) => B
Answer:
657kg
Step-by-step explanation:
405 ÷ 45 = 9
9 x 73 = 657kg
I hope this helps!
