If 14:15=42:x find the value of x​

45

Solution: you can use the above method or you can cross multiply. That’s mean multiplying the numerator of the left side by the denomination of the right. And the denominator on the left by the numerator on the right (it makes an x shape). Therefore, your algebraic equation should look like this and solve for x

14x=15*42
14x=630
X=630/14
X=45

The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.