y+z=10
x+z=8
x+y=12
(y+z)-(x+z)=10-8
y-x=2
y-x=2
y+x=12
solve simultaneously
x=5, y=7
then substitute to get z=3
hence xyz=573
Answer:
A) 3.9 dollars
B) 126.38 dollars
Step-by-step explanation:
Given that Denise Robb's account statement shows a $210.94 unpaid balance. With a periodic rate of 1.85%
The finance charge = 1.85/100 × 210.94 = 3.9 dollars
If She had new purchases of $341.22. The new balance will be
341.22 - ( 210.94 + 3.9 )
126.38 dollars
Answer:
B
Step-by-step explanation:
2x+8=9
you want to isolate the variable so you subract 8 from both sides
2x=1
now you want x by itself so you divide by 2 on both sides
x=1/2 or x=0.5
Hope this helped :)
.25 or 1/4 Is the simplest form