Acommercial jet has been instructed to climb from its present altitude of 6000 feet to a cruising altitude of 30,000 feet. if the plane ascends at a rate of 4000 ft/min, how long will it take to reach its cruising altitude?

6 min  

Step-by-step explanation:

(a) Calculate the change in height

Δh = h₂ - h₁ = 30 000 ft - 6000 ft = 24 000 ft

(b) Calculate the time to reach altitude

distance = rate × time

Divide both sides by rate

time = distance/rate = 24 000 ft × (1 min/4000 ft) = 6 min

It takes 6 min to reach cruising altitude.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm