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8_murik_8 [283]
2 years ago
9

A biology teacher has 555 different pets they keep in their classroom. For an upcoming holiday break, the teacher will send the

pets home with students. Suppose that 161616 of the teacher's 757575 students volunteer to take a pet home, and the teacher will randomly select 555 of those volunteers to each take 111 pet home. The permutation formula n\text{P}rnPrn, start text, P, end text, r can be used to find the number of unique ways the teacher can distribute pets to the volunteers.
Mathematics
1 answer:
oksian1 [2.3K]2 years ago
3 0

Answer:

who the hell has 555 diffent pets

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The construction of an 80-meter bridge was finished in 12 weeks. How much of the bridge was built on average each week?
VMariaS [17]

Answer: <em>6.6 meters a week</em>

Step-by-step explanation:

<em>This problem is quite simple</em>

<em>You take 80 and divide it by 12</em>

<em>80/12 </em>

<em>which equals</em>

<em>6.6</em>

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2 years ago
The bagel shop sells special bagel sandwiches for $7 and plain bagels for $2. Last saturday, they sold 100 items and made $385.
zloy xaker [14]

Answer:

Number of special bagel sandwiches = 37

Step-by-step explanation:

Let x,y denote number of special bagel sandwiches and plain bagels respectively.

The bagel shop sold 100 items.

x+y=100\\y=100-x

Also, The bagel shop made $385.

7x+2y=385

Put y=100-x in 7x+2y=385

7x+2(100-x)=385\\7x+200-2x=385\\5x=385-200\\5x=185\\x=\frac{185}{5}\\x=37

So,

Number of special bagel sandwiches = 37

5 0
2 years ago
Mrs. Taft keeps inventory of the copy paper in the school copier room. Nine weeks ago, there were 150 reams of copy paper in the
Novay_Z [31]

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Step-by-step explanation:

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2 years ago
Logan can read at a rate of 2/3 page per minute. At that rate, how many pages can he read in 2 hours?
Anon25 [30]

Answer:

240- 360

Step-by-step explanation:

You have to find out how many minutes in an hour which is 60. Then multiply it by 2 for 2 hours to get 120. Then you multiply 2x120 to get 240. Then you multiply 3x120 to get 360.

I'm not sure if this is correct but this is how I would go about it. :)

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Katarina bought a package of 500 stickers. Each sheet in the package has 20 stickers.
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5 0
1 year ago
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