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Variables x and y vary

My questions are:why are variables useful in algebra? Also, what makes the use of variables difficult to understand? Variables
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2. asked by jasmine20
3. 614 views
The variables x and y vary directly. When x=12, y=9. Write an equation that relates the variables.
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2. asked by Jess
3. 619 views
what makes the use of variables diffcult to understand?what makes them difficult to understand is : Depending on which variables
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2. asked by jordan
3. 553 views
The variables x and y vary inversely. When y is 24, x is 8. What is y when x is 4?
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2. asked by Anonymous
3. 1,933 views
can you please show me how to set this up?The variables x and y vary directly. When x is 3, y is 6. Find x when y = 2/3
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2. asked by Lucas
3. 439 views
The variables x and y vary inversely with a constant of variation of 6.Find y when x = 12.
1. 1 answer
2. 36 views
The variables x and y vary inversely, and x = 12 when y = 6. Use the inverse variation formula, k = xy, to find y when x = 3.
1. 1 answer
2. 67 views
The variables x and y vary inversely, and x = 12 when y = 6. Use the inverse variation formula, k = xy, tofind y when x = 3.
1. 1 answer
2. 42 views
Which are the two variables that scientists try to isolate in most scientific experiments?answers: The larger and the smaller
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2. asked by Unknown
3. 44 views
Variables x and y vary directly. If y = 48 when x = 16, what is the constant of variation (k) that relates x and y in the
1. 1 answer
2. 31 views