You can use the degree measure of the central angle theta (the number of degrees you have gone around the circle) and the amount of radians you have gone around the circle
the equation for arc length using degrees and radians is: s(arc length) = r(xº)
r is not the radius length it is the length you have gone around the circle measured in terms of the radius
you need to know the central angle (degrees) and radians to figure out arc length without knowing the radius length
So remember that a quarter=25 cents and a dime=10 cents so
represent q=# of quarters
d=# of dimes
so barney gets dimes so replace barney with d and betty with q
barney get 5 more coins than betty
d=5+q
total=5.05=0.25q+0.10d since each is worth 0.25 and 0.10 so we have
d=5+q and 5.05=0.25q+0.10d
subsitue (5+q) for d
5.05=0.25q+0.10(5+q)
distribute
5.05=0.25q+0.50+0.10q
add like terms
5.05=0.35q+0.50
subtract 0.50 from both sides
4.55=0.35q
divide both sides by 0.35
13=q
subsitute
d=5+q
d=5+13
d=18
barney got 18 coins and betty got 13 coins
Answer:
362.5 in^3
Step-by-step explanation:
V = (face [surface] area)(height)
V = 58(6.25) = 362.5
Answer: 4000 Grams
(Edited! I was wrong!)
Step-by-step explanation:
32 divided by 8 is 4. Add the units, and youre done! (x1000 bc 1000 kg are in a gram)
