Answer:
its righties b
Step-by-step explanation:
Answer:
c=80 b=4
Step-by-step explanation:
c=2.5b+70 multiply the top equation by -2
c=5b+60
c=-5b+-140
c=5b+60 add both equations together
c=80
plug in 80 for c to determine b for 1 equation.
(let's pick the second equation since it is easier to deal with whole numbers)
80=5b+60 subtract 60 from both sides
20=5b divide each side by 5
4=b
Answer:
y=6/5
Step-by-step explanation:
Hope this helps! Sorry if its wrong
Answer:
$1,236.25
Step-by-step explanation:
Since sales tax is 7.5% of the purchase, and since the pc costs 1,150, take 7.5% of 1,150, and add 1,150 and the new value together.
7.5 / 100 = 0.075
1150 * 0.075 = 86.25
1150 + 86.25 = 1236.25