Answer:
10%
Step-by-step explanation:
First, 97.90-89=8.90
8.90/89 = x/100
8.90 x 100 = 890
890/89=10%
Check Answer:
89 x 10%=8.90
89+8.90= 97.90
Therefore, the sales tax percentage is 10%
If the right hand side of a quadratic equation does not equal zero, you need to subtract the number...
Answer:
100 joules/ second
Step-by-step explanation:
5,000/50 seconds = 100 joules/ second