An airplane travels 460 miles from San Diego to San Francisco in 2.5 hours, going against the wind. The return trip is with the wind, and takes only 2 hours. Find the rate of the airplane with no wind. Find the rate of the wind. I just need the wind rate. the first answer is 207,
the answer could be either
11.5 mi/H or 23 mi/H

distance=rate times time

distance=460

rate-wind=rate against wind

rate+wind=rate with wind

2.5=time aginst wind

2=time with wind

so

460=(rate-wind) times 2.5

and

460=(rate+wind) times 2

solve for rate

460=(rate-wind) times 2.5

divide both sides by 2.5

184=rate-wind

460=(rate+wind) times 2

divide by 2

230=rate+wind

we have

184=rate-wind

230=rate+wind

add them

184=rate-wind

230=rate+wind +

414=2rate+0wind

414=2rate

divide by 2

207=rate

answer is 207 miles per hour.

Step-by-step explanation: I hope this helps! :)

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.

8

step-by-step explanation: