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anzhelika [568]
4 years ago
11

There are 3636 chocolates in a​ box, all identically shaped. There 1212 are filled with​ nuts, 99 with​ caramel, and 1515 are so

lid chocolate. Someone randomly selects one​ piece, eats​ it, and then selects a second piece. Find the probability of selecting 2 nut candies. Express your answer as a simplified fraction
Mathematics
1 answer:
sineoko [7]4 years ago
4 0

Answer:

1211/10905

Step-by-step explanation:

In the beginning, the probability to pick a nut piece is 1212/3636. Once you eat it you have 3635 candies left, of which 1211 are nuts, and therefore the probability to pick nut again is 1211/3635.

So, the combined probability is 1212/3636 * 1211/3635 = 1/3 * 1211/3635 = 1211/(3*3635) = 1211/10905

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Regan's New Year's resolution is to exercise more. Today, she plans to run 1.5 miles on the track around her school's football f
Contact [7]

Answer:

6 laps

Step-by-step explanation:

According to the scenario, calculation of the data are as follows:

Each lap = 0.25 miles

Regan's plan to run= 1.5 miles

So, we can calculate number of laps by using following formula,

Number of laps = Total miles to run ÷ each lap miles

By putting the value, we get

Number of laps = 1.5 miles ÷ 0.25 miles

= 6 laps

So, she should run 6 laps.

7 0
3 years ago
8×1+5×(1/10)+9×(1/1,000)
dybincka [34]
8×1+5×(1/10)+9×(1/1000)
8+5×(.1)+9×(.001)
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Answer is 8.509

7 0
3 years ago
Expand the polynomial and simplify: (4xy− 1 8 y^2)^2
Vinvika [58]

Answer: 4y^{2}(2x-9y)^{2}

Step-by-step explanation:

We have the following polynomial:

(4xy-18y^{2})^{2}

This is a polynomial of the form (a-b)^{2}=a^{2}-2ab+b^{2}. Following this rule to expand it, we have:

(4xy)^{2}-2(4xy)(18y^{2})+(18y^{2})^{2}

16x^{2}y^{2}-144xy^{3}+324y^{4}

Applying common factor 4y^{2}:

4y^{2}(4x^{2}-36xy+81y^{2})

Note the polynomial inside the parenthesis is a perfect square trinomial, which can be factored to(2x-9y)^{2}. Hence, the final simplification is:

4y^{2}(2x-9y)^{2}

3 0
3 years ago
32 + 5 <br><br><br><br> code 5621602829
Harrizon [31]

Answer:

32 + 5 is 37

Step-by-step explanation:

you just have to get the 32 and count 5 numbers forward.

7 0
3 years ago
Read 2 more answers
Floretta is out grocery shopping. She buys 7 pounds of bananas for $3.50. What is the unit rate for the bananas in $ ? pound You
I am Lyosha [343]

9514 1404 393

Answer:

  $0.50 per pound

Step-by-step explanation:

To find cost per pound, divide cost by the corresponding number of pounds.

  $3.50/(7 lb) = $0.50/lb

The unit rate for bananas is $0.50 per pound.

4 0
3 years ago
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