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Genrish500 [490]
2 years ago
8

Saqui buys streamers for $0.09.

Mathematics
2 answers:
mars1129 [50]2 years ago
8 0
It will cost 27 dollars to buy 300 cm of streamers.

.09 x 300 = 27
Westkost [7]2 years ago
7 0

Answer:

27

Step-by-step explanation:

0.09 x 300 = 27

It will cost 27 dollars for 300 centimeteres of streamers.

Have an amazzing day!

Please rate!

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A box contains a collection of triangular and square tiles. There are 2525 tiles in the box, containing 8484 edges total. How ma
AnnyKZ [126]
Let us consider the number of edges = x
we know that a triangle will have 3 edges and a square will have 4 edges. Using this details we can form an equation.
3x + 4x = 8484
7x = 8484
x = 8484/7
  = 1212
Then
Number of square tiles = 1212/4
                                     = 303
So there are 303 square tiles in the box. I hope the procedure is clear enough for your understanding. You can always use this method for solving similar problems.
                                                      
5 0
3 years ago
The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 91 inches, and a standard d
Vesna [10]
The sample std. dev. will be (14 inches) / sqrt(49), or (14 inches) / 7, or 2 inches.

Find the z score for 93.8 inches:
       93.8 inches - 91.0 inches          2.8 inches
z = ------------------------------------- = ----------------- = 1.4
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Now find the area under the standard normal curve to the left of z = +1.4.

My calculator returns the following:

normalcdf(-100,1.4) = 0.919.  This is the probability that the mean annual precipitation during those 49 years will be less than 93.8 inches.
 
4 0
3 years ago
Solve the system of linear equations using elimination. <br><br> −2x − y = 3<br> −9x − y = 17
Maurinko [17]

-2×-y=3-9×-y=17

=2×+9×=1y+1y=17+3

11×=2y=20

11=y=20÷2

11y=10

y=10/11

6 0
3 years ago
How do I multiply mixed numbers? For example: 6 4/5 x 8 9/10. I need help I have a quiz on this.​
nordsb [41]

Step-by-step explanation:

First you have to convert each number to improper fractions.

Next you have to multiply denominator to denominator, and fraction to fraction.

Then simplify your final answer to the lowest form possible.

Hope this helps :)

6 0
2 years ago
What is the sum of 2^5 and 7^2? Write the answer in the ordinary form.
posledela

Answer:

It's 81

Step-by-step explanation:

2^5 is 2*2*2*2*2 or 32

7^2 is 7*7 or 49

Add them together... 81

5 0
2 years ago
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