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riadik2000 [5.3K]
3 years ago
6

9/81 is equivalent to which fraction? please explain

Mathematics
2 answers:
alexdok [17]3 years ago
8 0
9/81 can be simplified into 1/9. You divide both the top and bottom part of the fraction by 9.
9/9=1 and 81/9=9 to get 1/9. but that's it's simplified version. equivalent fractions of it can be almost anything. like, 1/9 can equal 2/18, 3/27, or 4/36.
Katen [24]3 years ago
6 0

Answer:

9/81 is equivalent to 1/9.

Step-by-step explanation:

The easiest way to solve this is seeing if we can write 81 as a product os nines.

We have that 81 = 9^{2}. So we can simplify the following way:

\frac{9}{81} = \frac{9}{9^{2}} = \frac{9}{9*9} = \frac{1}{9}.

This means that 9/81 is equivalent to 1/9.

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kiruha [24]
B.) the quotient is -25
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Write an equation for this linear function. <br>f(0)=3 and f(3)=0 <br><br>f(x)=
Jlenok [28]

Answer:

f(x)=-x+3

Step-by-step explanation:

contains (0, 3) and (3, 0)

slope = (3-0)/(0-3)=3/-3=-1

f(x)=-x+b

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5 0
2 years ago
A library subscribes to two different weekly news magazines, each of which is supposed to arrive in Wednesday�s mail. In actuali
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Answer:

P(Y = 0) = 0.09

P(Y = 1) = 0.4

P(Y = 2) = 0.32

P(Y = 3) = 0.19

Step-by-step explanation:

Let the events be:

W = Wednesday

T = Thursday

F = Friday

S = Saturday

Their corresponding probabilities are

P(W) = 0.3\\P(T) = 0.4\\P(F) = 0.2\\P(S) = 0.1

Since Y = number of days beyond Wednesday that it takes for both magazines to arrive(so possible Y values are 0, 1, 2 or 3)

The possible number of outcomes are therefore 4^2 = 16\\(W, W), (W, T), (W, F), (W, S)\\(T, W), (T, T), (T, F), (T, S)\\(F, W), (F, T), (F, F), (F, S)\\(S, W), (S, T), (S, F), (S, S)

The values associated for each of the outcomes are as follows:

Y(W, W) = 0, Y(W, T) = 1, Y(W, F) = 2, Y(W, S) = 3\\Y(T, W) = 1, Y(T, T) = 1, Y(T, F) = 2, Y(T, S) = 3\\Y(F, W) = 2, Y(F, T) = 2, Y(F, F) = 2, Y(F, S) = 3\\Y(S, W) = 3, Y(S, T) = 3, Y(S, F) = 3, Y(S, S) = 3

The probability mass function of Y is,

P(Y = 0) = 0.3(0.3) = 0.09\\P(Y = 1) = P[(W, T) or (T, W) or (T, T)]\\= [0.3(0.4) + 0.3(0.4) + 0.4(0.4)]\\= 0.4\\\\P(Y = 2) = P[(W, F) or (T, F) or (F, W) or (F, T) or (F, F)]\\= [0.3(0.2) + 0.4(0.2) + 0.2(0.3) + 0.2(0.4) + 0.2(0.2)]\\= 0.32\\\\P(Y = 3) = P[(W, S) or (T, S) or (F, S) or (S, W) or (S, T) or (S, F) or (S, S)]\\= [0.3(0.1) + 0.4(0.1) + 0.2(0.1) + 0.1(0.3) 0.1(0.4) + 0.1(0.2) + 0.1(0.1)]\\= 0.19

7 0
3 years ago
Need help can someone plz help me solved this problem ASAP! Need help I will mark you as brainiest
Lapatulllka [165]

Answer: 24, 33

              2.5, 4.75

              9.5, 11.75

<u>Step-by-step explanation:</u>

It is given that the PERIMETER is BETWEEN 24 and 33

-->          24 < P < 33

Graph:   O------------------O

            24                    33

Perimeter = 2w + 2L

It is given that L = w + 7

Substitute P with 2w + 2L and substitute L with w + 7

                24 <  2w + 2(w + 7) < 33

                 24 < 2w + 2w + 14 < 33    

                  10 <          4w        < 19    

-->             2.5 <          w        < 4.75          

Graph:       O--------------------------O

                 2.5                         4.75

Since L = w + 7, then w = L - 7

Substitute P with 2w + 2L and substitute w with L - 7

                24 <  2(L - 7) + 2L < 33

                 24 < 2L + 2L - 14 < 33    

                 38 <          4L        < 47    

-->             9.5 <          L        < 11.75  

Graph:      O------------------------O

                9.5                          11.75

<em>NOTE: Make sure you use OPEN dots on the graphs.</em>

3 0
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Anon25 [30]
I may not be the best at this but I believe that Tom’s friends ate the same amount of pepperoni pizza to vegetable pizza because He cut the pizza into 5 slices as to the pepperoni into 10 slices is. The fraction of Vegetable to Pepperoni is 1/2 so 2 vegetable slices is the same amount as 4 slices because the pepperoni pizza is in smaller sizes compared to the Vegetable pizza.
5 0
3 years ago
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