A dress maker had 27 yards of fabric.If she wanted to use the fabric to make 5 dresses,each using the same amount of fabric how
1 answer:
Each dress will need 5.4 yards of fabric and the answer lies between 5 and 6
Step-by-step explanation:
Given
Total fabric = 27 yards
Dresses to be made = 5
In order to find the measurement of fabric for one dress, the total fabric will be divided by number of dresses to be made.
So,
The answer lies between the whole numbers 5 and 6
Hence,
Each dress will need 5.4 yards of fabric and the answer lies between 5 and 6
Keywords: Fractions, Division
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Step-by-step explanation:
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The square of a prime number is not prime.
a) let x ∈ R, If x ∈ {prime numbers}, then ∉{prime numbers}
there says that if x is a real and x is in the set of the prime numbers, then the square of x isn't in the set of prime numbers.
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ok, if x is a prime number, then x only can be divided by himself. Now is easy to see that = x*x can be divided by himself and x, then x*x is not a prime number, because can be divided by another number different than himself