Answer:
-4
Step-by-step explanation:
3(5-n)=27
solve
15-3n=27
subtract 15 from 2 sides
-3n=12
n=-4
Answer:
b
Step-by-step explanation:
so 0.5x is a slope of 1/2, which is rise 1 | run 2, and b matches that!
Answer:
1 Solution
Step-by-step explanation:
0=4/3x
multiply by 3
0=4x
Divide by 4
X = 0
Answer:
- original cost: $195.00
- % discount: 16%
Step-by-step explanation:
I wouldn't mess with trying to set up proportions. That seems an inappropriate tool for this. Instead, make use of the known relationships between the various prices:
original cost - discount amount = discounted price
Adding the discounted amount to both sides of this equation gives ...
original cost = discounted price + discount amount
original cost = $163.80 + 31.20
original cost = $195.00
_____
The percentage discount is ...
percent discount = (discount amount)/(original cost) × 100%
= $31.20/$195.00 × 100%
= 16%
The percentage discount is 16%.
