lindseyasiana9 lindseyasiana9

26-02-2021
Mathematics

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The value of y varies directly with x. If x = 15, then y = 12. What is the value of y, when x = 21?

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Cat123dog456 Cat123dog456

26-02-2021

Answer: 16.8

Step-by-step explanation: if x= 15 and y =12 we know that y =.8 of x or 4/5 of x. Knowing this we can divide x (21) by 5 and get 4.2. We can then multiply this and get 16.8 which is 4/5 of x(21). y=16.8

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