Sarah rolls a die twice. what is the probability that she rolls a 3 and then an even number?

The probability of rolling a 3 is

1

6

since there is 1 three and there are 6 sides total. The probability of rolling an even number is

1

2

since there are 3 even numbers and 6 total sides. Multiply

1

6

and

1

2

and the correct answer is

1

12

.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.