Set up an equation 20=k(0.4)....to find k divide 20 by 0.4
Answer:
i do no sorry plz i have exam in online so sorry
4 hundreds = 4 100s = 4(100) = 400
400 is another way for writing four hundreds.
Hope this helps!
First, add 1 on both sides of the equation to begin to isolate x
x/5 = 8
Now, to isolate x, multiply both sides of the equation by 5/1

·

=

= x
x= 7 · 5/1 = 7 · 5 = 35
x = 35