Answer:
12.5
Step-by-step explanation:
Given :
Han says that we can wrap a 5 foot rope around a wheel with a 2 foot rope.
To Find :
It this true or false.
Solution :
Radius of wheel, r = 1 foot.
Circumference of wheel is given by :

Since, circumference is greater than 5 foot, therefore, we cannot wrap a 5-foot rope around a wheel with a 2-foot diameter.
Hence, this is the required solution.
Answer:
2520 decrease per year
Step-by-step explanation:
8.4% is also .084 so you multiply .084 by 30,000 and get 2520.
Answer:
216 boys
Step-by-step explanation:
450 students: 20% girls, 80% boys
450*20%=90 girls
450*80%=360 boys
Students having mobile phones: 40% (OF THE 90) girls, 60% (OF THE 360) boys
90*40%=36 girls
360*60%=216 boys
[We honestly don't need to care about the girls without mobile phones as they are only asking how many boys have mobile phones]
Answer: 19,461
Step-by-step explanation:
Add 19,000+400 get 19,400
Add 19,400+60 and get 19,460 add 1 and get 19,461