Direct proportionality is given by the formula y = -1 / 3x. Find the value of x at y = 10.
| August 25, 2021 | education
To find the value of x, it is necessary to substitute the given value of y = 10 into the given equation of direct proportionality, and solve the equation:
y = – 1 / 3x;
3x * y = – 1;
3x = – 1 / y;
x = – 1 / 3y;
substitute the value for y = 10:
x = – 1 / (3 * 10);
x = – 1/30.
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