Fiza is mixing antifreeze and water. she has 21 litres of a mixture of antifreeze and water in the ratio 5:2 . A . how much water would she have to add to get1:1.
B .and how much water would she have to add to get 1:2

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Step-by-step explanation:

The amount of water in the mix is 2/(5+2) = 2/7 of the volume of the mix. That amount is ...

  (2/7)(21 liters) = 6 liters

Then the other 21-6 = 15 liters are antifreeze.

A) To make the mix 1 : 1, 15-6 = 9 liters of water need to be added.

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B) To make the mix 1 : 2, The total amount of water needs to be brought to 30 liters. 15 more liters need to be added for a total of 24 added liters of water.

Step-by-step explanation:

The family’s leaders have pulled off three of the great marketing triumphs of the modern era: The first is selling OxyContin; the second is promoting the Sackler name; and the third is ensuring that, as far as the public is aware, the first and the second have nothing to do with one another.

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the answer is true.

step-by-step explanation:

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !