Ishi walked:
[tex]total \: distance \: walked \: = 2 \frac{1}{2} \: miles[/tex]
At constant rate of :
4 miles/hr
Convert :
4 miles/hr × 60mins/1
*So we know part of your answer includes
[tex]4 \frac{miles}{hour} \ \div \: \frac{60mins}{1} [/tex]
Next step:
[tex] \\ 2 \frac{1}{2}miles \: \\ = (x \: mins) \times 4 \frac{miles}{hour} \ \div\frac{60mins}{1} \: \\ \\ x \: mins \\ =2 \frac{1}{2}miles \div \: 4 \frac{miles}{hour} \ \div \frac{60mins}{1} \: \: [/tex]
answer is 3rd option.
