The chance that an office sprinkler system will fail 20%; chance that the alarm system will fail is 10%; and a chance that both will fail is 4% what is the chance that either the sprinkler or the alarm system will fail ?

A. 26%

Step-by-step explanation:

26% use the addition rule. P(Sprinkler or alarm) = 0.20 + 0. 10 - 0.04  = 0.26.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?