Answer:
a = 7, when F = 56
Explanation:
From the given question,
F = xa ............. 1
⇒ x = [tex]\frac{F}{a}[/tex] ................. 2
when F= 72 and a = 9,
substitute the values of F and a in equation 2, to have;
x = [tex]\frac{72}{9}[/tex]
= 8
x = 8
Thus, the value of a when F = 56 can be determined as follows;
From equation 1,
a = [tex]\frac{F}{x}[/tex] ................... 3
= [tex]\frac{56}{8}[/tex]
= 7
a = 7
The value of a is 7.
