A number is chosen at random from 1 to 25. find the probability of selecting a composite number
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All the composite numbers from 1 to 25 are 4,6,8,9,10,12,14,15,16,18,20,21,22,24, and 25. That's 15/25 numbers or a 3/5 chance.
1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17
A magician showed a magic trick where he picked one card from a standard deck. Determine what the probablity is that the catd will be a black queen card?
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In a standard deck of cards there are 52 cards. 13 cards per suit and 4 suits. There are 4 queens in a deck. A queen of hearts (red,) a queen of diamonds (red,) a queen of clubs (black,) and a queen of spades (black.) That means that there are two black queens in a deck of 52 cards. Therefore the probability is 2 out of 52 or 2/52. This also simplifies to 1 out of 26 or 1/26.
standard deck: 54 card there is only 1 type of each card 2 types of each color card 4 types of each number or sign card there are 2 black types in a card deck spades-clubs so 2/54 or 1/26
Mat ran 8 laps in 1,256 seconds.if he ran each lap in the same amount of time,how many seconds did it take him to run 1 lap?
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Answer=157 seconds
1256 seconds 8 laps
1256/8=157seconds per lap
you need to divide 1,256 by 8 which, is 157 seconds
What is 24.357 in unit form
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(2x10)+(4x1)+(3x1/10)+(5x1/100)+(7x1/1000) 1/10,1/100,1000 are fractions
Estimate a 25% tip on a bill of $63.15 by first rounding the bill amount to the nearest ten dollars.
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Answer:
16 dollars is the answer
What are the types of transformations in 8th grade Pre-Algebra?
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Translation: every point of the pre-image is moved the same distance in the same direction to form the image.
Rotation: transformation that is performed by spinning the object around a fixed point known as the center of rotation.