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Temka [501]
3 years ago
5

Tina is joining 3 sections of a quilt. Each section has 3 rows of 15 square pieces of fabric. How many squares will be in the co

mpleted quilt? Does the product change of you change the grouping of factors?
Mathematics
1 answer:
Tomtit [17]3 years ago
4 0

Answer: There are 135 squares that will be in the completed quilt and No, the product change of you does not change the grouping of factors.

Step-by-step explanation:

Since we have given that

Number of sections = 3

Number of rows in each sections = 3

Number of square pieces in each row = 15

So, the number of squares that will be in the completed quilt would be

3\times 3\times 15\\\\=9\times 15\\\\=135

Hence, there are 135 squares that will be in the completed quilt and No, the product change of you does not change the grouping of factors.

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Andru [333]

3/4 pound store charges 1.25 $ .
Let , cost of 1 pound is x .
So ,

Now , cost of 9 pounds chocolate is :

Therefore , cost of 9 pounds chocolate is 15.03 $ .
Hence , this is the required solution .
7 0
3 years ago
Let x be a random variable from a binomial distribution with n = 40 and p = 0.9. If a normal approximation is appropriate, give
Dvinal [7]

Answer:

Step-by-step explanation:

Given that x is a random variable from a binomial distribution with n = 40 and p = 0.9.

We find that mean = np= 36 and variance = npq = 3.6

Std dev = square root of variance = 1.897

When we approximate binomial to normal we say

X' is Normal with mean = 36 and std dev = 1.897

X' is N(36, 1.897)

Note:

The condition for binomial approximating to normal is p should be close to 1/2

Here p is 0.9 and also nq=4 is very small.

So normal approximation may not give accurate results.

4 0
4 years ago
If Rectangle A has a length of 4 and a width of 2 and Rectangle B has a length of 16 and a width of 8 what would the scale facto
stira [4]

Answer:

4

Step-by-step explanation:

To know the scale factor here, just know that 16/4 = 4, and 8/2 = 4 too, so the scale factor is 4.

Just that the respective sides need to have the same ratio.

Note, if it was from B to A, it'd be 1/4.

8 0
3 years ago
Read 2 more answers
A model of a C130 airplane has a scale of 1/100. If the model plane if 1 foot long, how long is the actual plane?
Sphinxa [80]
The plane would be 100 feet long. if the scale is 1/100 and the model is 1 ft you would take 1 x 100 to get 100 feet.
7 0
4 years ago
If a circular property has a diameter of 50' and costs $120 per square foot, what is the cost of the property?
dusya [7]
Find area
area=pir^2
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A=pi25^2
a=pi625
aprox pi=3.141592
a=1963.495
that is how many square feet
multiply that by 120
1963.495 times 120=$235,619.4
5 0
3 years ago
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