500 tickets were sold for a concert. some cost $5 and some cost $8. the cash received for the expensive tickets was $100 more than the cheaper tickets. find the number of each kind of ticket which were sold.

200 $5 tickets sold, and 300 $8 tickets sold

Step-by-step explanation:

x = # of $5 tickets sold

y = # of $8 tickets sold

     This is a simple system the first equation is x + y = 500. The next equation is y = x +100. Therefore you substitute the second equation into the first and get an answer of (200, 300) or 200 $5 tickets sold, and 300 $8 tickets sold.

3 is greater then both of those numbers

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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