Change each number to an improper fraction.
Put in lowest terms if possible.
Multiply the numerators and then the denominators.
Put answer in lowest terms.
<span>Which represents the inverse of the function f(x) = 4x?
</span>
f-1(x) = x/4
Answer:
₹900
Step-by-step explanation:
Let x represent the amount loaned at 10%. Then (1500-x) is the amount loaned at 7%, and the total interest for 3 years is ...
i = Prt
396 = x(0.10)(3) + (1500-x)(0.07)(3)
396 = 0.09x +315 . . . . . simplify
81 = 0.09x . . . . . . . . . . . subtract 315
81/0.09 = x = 900 . . . . . divide by the coefficient of x
The sum lent at 10% was ₹900.
