1/2% of 4000 miles find percent and show work

  20 miles

Step-by-step explanation:

It is useful to remember that % means /100, and that 1% = 1/100.

Here, you want 1/2% × 4000. The associative property of multiplication lets you rearrange this to ...

  (1/2)% × 4000 = (1/2) × 1% × 4000

  = 1/2 × (1/100 × 4000) = 1/2 × 4000/100

  = 1/2 × 40 = 20 . . . miles

If you refuse to be intimidated by percentages, you can do this math in your head.

the answer is 37

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb