Answer:
Josie bought 40 adult tickets and 32 children tickets.
Step-by-step explanation:
x+y=72
22x+10y=1200
-----------------------
x=72-y
22(72-y)+10y=1200
1584-22y+10y=1200
1584-12y=1200
12y=1584-1200
12y=384
y=384/12=32
x+32=72
x=72-32=40
x=40, y=32. (40, 32)
GG easy
I=(r)(t)(P)P=principalr=rate in decimalt=timei=interest
so just plug in what you know to solve for what you don't know
first oneI=(0.05)(3)(100)
I=15
2nd one20=(0.04)(t)(500)20=20tdivide by 20 both sides1=tt=1
3rd one35=(0.10)(7)(P)35=0.70Pdivide both sides by 3550=PP=50
4th one6=(r)(2)(200)
6=400rdivide both sides by 4000.015=rconvert to percent1.5%=r
465.98-10.00-14.95-6.07-109.1+(30.00) =355.86
Answer:
-18
Step-by-step explanation:
y=6x-3
6x-3=-18
-18=6x-3
Making an equation,
Let heralds age be x
10+6x=4x+40
Seperating constants and variables,
6x-4x=40-10
2x=30
x=30/2
=15
Heralds age is 15,
Substitute x with 15 in the equation for rechecking