Step-by-step explanation:
If the total worth of the roll is 50 cents, we know that there are 50 pennies in the roll, and therefore the roll has a height of 50 * 1.52 = 76 mm. The radius of a penny is half its diameter, or 19.05 / 2 = 9.525.
We can find its volume with the formula (πr²) * h, where r and h are the radius and height respectively, and we can approximate 3.14 for π. Plugging these in, we have (3.14 * (9.525)²) * 76 ≈ 2160.8 mm³. Hope this helps!
If he hikes 6 miles in 2 hours, his speed is...
6/2 miles/hr
6/2 reduces to 3/1 so he is traveling 3 miles/hr.
To find how far he goes in 9 hours, multiply speed × time...
9 hours × 3 miles/hour =
27 miles
Answer:
-4.2
Step-by-step explanation:
It is the third one that is the answer
Answer:
7/72
Step-by-step explanation: