Question

If f =28 when a = 7 find f when a is 10 (direct proportion) ​

Answer 1

Answer:

f=40

Step-by-step explanation:

f=28, a=7

$f \infty a \\ f = ka \\28 = k(7) \\ 28 = 7k \\ \frac{28}{7} = \frac{7k}{7} \\ 4 = k \\ k = 4 \\ f = 4a \\ a = 10 \\ f = 4(10) \\ f = 40$

Hope that this is helpful.

Have a nice day.

Answer 2

F=40
Don’t really know how to explain it tho