Question

At top speed, a rabbit can cover 7 miles in 12 minutes. If a rabbit could continue at this rate indefinitely, how long would it take the rabbit to cross the 220-mile expanse of the Mojave Desert?

Answer 1

At top speed, a rabbit can cover 7 miles in 12 minutes.
Let’s solve for the unit rate:
=> 7 miles in 12 minutes. Let’s solve for the miles per minute value
=> 7 / 12 = 0.58 miles per minute
 If a rabbit could continue at this rate indefinitely, how long would it take the rabbit to cross the 220-mile expanse of the Mojave Desert.
=> 220 miles / 0.58 miles/minute = 379 minute
Thus, it will take a rabbit a 379 minute to finish 220 miles.

Answer 2

$\sf{\frac{7~miles}{12~minutes} = \frac{220~miles}{x}}$

Cross multiply to get

$\sf{7~miles\times x = 220~miles\times 12~ minutes}$

We can divide by miles on both sides.

$\sf 7x = 2640~minutes\\\\x \approx 377.142857~minutes$

It will take the rabbit around 377 minutes to cover 220-miles.