Mathematics, 26.11.2020 14:20 zanaplen27
Visitors in a cinema are either children, adults or pensioners
the ratio of children to adult visitors is 1 : 2
the ratio of adult to pensioners is 3 : 4
a stratified sample of 85 is to be taken from the cinema visitors
how many pensioners should be in the sample?
Answers: 3
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Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?
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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap
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How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
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Visitors in a cinema are either children, adults or pensioners
the ratio of children to adult visit...
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