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julia-pushkina [17]
3 years ago
5

2.) What is the

Mathematics
2 answers:
Anon25 [30]3 years ago
8 0

Answer:

probability would be 5/6.

GuDViN [60]3 years ago
4 0
The probability would A.) 5/6
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assume the substance has a half-life of 11 years and the initial amount is 126 grams.How long will it be until only 15 % remains
Mumz [18]
(126) times (1/2 to the x/11 power) = 15% times 126

(1/2) to the x/11 power = 0.15

Take the log of both sides :

(x/11) times log(1/2) = log(0.15)

Multiply both sides by 11 :

'x' times log(1/2) = 11 x log(0.15)

Divide both sides by " log(1/2) " :

x = 11 x log(0.15)/log(1/2) = <em><u>30.107 years</u></em> (rounded)

That's the time it takes for <em><u>any-size</u></em> sample of this substance
to decay to 15% of its original size.


5 0
3 years ago
The bike store marks up the wholesale cost of all of the bikes they sell by 30%.
Dmitrij [34]

Answer:

Suppose that the wholesale of a bike is A (A is the 100% in this case). If we have an increase of 30% for the sale price, we have the new price of:

Price = A + (30%/100%)A = A + 0.3*A = (1.3)*A

Then if we know that the price tag of the bike is $125, then we have:

$125 = (1.3)*A

$125/1.3 = A = $96.15

The wholesale cost of the bike is $96.15

6 0
3 years ago
Read 2 more answers
Leashes bought for $5.00 and sells for $12.50 what is the markup
Katen [24]

Answer:

Markup amount = sellingprice - costprice

=12.50 - 5 = 7.5 is markup

3 0
2 years ago
Read 2 more answers
A square has an Area of 225
natta225 [31]
<h2>Answer:</h2>

25

<h2>Explanation:</h2>

25 because that's the only number that can evenly go into 225

6 0
3 years ago
5 less than the quotient of a number y and 2
Marta_Voda [28]
Quotient means division....less then means subtract
(y/2) - 5
5 0
3 years ago
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