Noor brought 21 sheets of stickers. she gave him 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1/1/2 sheets each. which inequality describes the number of teachers, t, noor could give the stickers to?

t is less than or equal to 4

15+3/2t is less than or equal to 21

Step-by-step explanation:

khan academy said i was right

Required inequality is t ≤ 4.

Step-by-step explanation:

There are 21 sheets of stickers.

Noor gave 1/3 of a sheet to each of the 45 students.

So, she gave 1 sheet to 3 students.

Therefore, the number of sheets she gave for 45 students = .

Remaining sheets = 21 - 15 = 6

Now, the number of teachers = t

Number of sheets Noor gave to one teacher =

For t teachers, the total number of sheets given = .

Clearly, this quantity should be less than or equal to the remaining sheets 6.

Hence, the required inequality is:

3t ≤ 12

t ≤ 4

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

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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