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
Vertex = (1/2,5/2) x= 1 + or - square root of 5-2y all over 2
Well you would subtract 0 from 60 and you would get 60, so your answer is 60feet
