Answer:
21.70
Step-by-step explanation:
First find the discount
31 * 30%
31 *.30
9.3
Subtract from the original amount
31 - 9.3
21.70
Write a system of equations and solve.
x + y = 10
5x + 10y = 90
Multiply and combine equations
-5x - 5y = -50
5x + 10y = 90
------------------
5y = 40
y = 8
x = 2
There are 2 nickels and 8 dimes in the jar. Hope this helps! :)
<span>= 48 - 18i + 8i - 3i</span>²<span>
= 48 – 10i – 3i</span>²
Answer:
$67.70
Step-by-step explanation:
Multiply 51.20 by 0.32 then add that to 51.20
