If one of the numbers you are multiplying by is negative,then that answer will be negative.
Answer:
450 minutes
Step-by-step explanation:
1 hour and a half = 90 minutes in one day
90 (minutes) × 5 (days) = 450 minutes
Answer:
2x-y-13=0
Step-by-step explanation:
Use the formula i=prt, where i is the interest earned, p is the principal, r is the rate (as a decimal fraction) and t is the elapsed time, in years.
Here i = $72 = $1200 r (9/12) (9 months is 9/12, or 3/4, of 1 year)
Reducing,
$72 = $900r
Solving for r, r=0.08, or 8 percent per year.