A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour. mi/h
h/mi
How is each unit rate useful in a real-life situation

1.6 mi / hr

0.625 hr / mi

Step-by-step explanation:

4/2.5 = x / 1

2.5/2.5 = 1

So, 4 / 2.5 = 1.6

1.6 mi / hr

4= m

2.5 = hr

4 / 4 = 1

2.5 / 4 = 0.625

0.625 hours / mile

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a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

step-by-step explanation: