Currently, there are 420 cars in the parking lot. campus security needs the set up for an event. they have only ten minutes to make sure that the parking lot has only 50 cars. write an equation that would allow them to calculate x, the number of cars to leave the parking lot each minute.

The number of cars to leave parking lot each min = 37

Step-by-step explanation:

Numbers of cars in parking lot = 420

Time required to make sure that parking lot have only 50 cars = 10 minutes

So ,number of cars to leave parking lot = 420 - 50 = 370

∵  10 min required to leave number of cars = 370

∴ For 1 min , number of cars to leave  = = 37

Hence The number of cars to leave parking lot each min = 37    Answer

i believe the answer is d.

hope it you! : d

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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