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4 votes
If

x and
y vary directly and
y is 48 when
x is 6, find
y when
x is 12.

User Typeracer
by
7.7k points

1 Answer

1 vote

Answer:

y is 96 when x is 12

Explanation:

If x and y vary directly, it means that they are proportional to each other. Mathematically, we can write this relationship as:

y = kx

where k is the constant of proportionality.To find the value of k, we can use the information given in the problem. We know that when x is 6, y is 48. Substituting these values in the equation above, we get:

48 = k * 6

Solving for k, we get:k = 8

Now that we know the value of k, we can use the equation to find y when x is 12:

y = kx

y = 8 * 12

y = 96

Therefore, when x is 12, y is 96.


also in my head I just said if 12 is double of 6, just double 48, which is 96. but that doesn’t always work so that’s why I provided “correct” work above

User Peadar Doyle
by
7.6k points

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