Answer:
x = 5
Step-by-step explanation:
6/18 = x/(20-x)
1/3 = x/(20-x) Multiply both sides by 20-x
(20-x)/3 = x Multiply both sides by 3
20-x = 3x Add x in both sides
20 = 4x Divide both sides by 4
5 = x
Answer:
160
Step-by-step explanation:
2*80=160 hope this helps
Answer:
i would guess (c)
am i right
Step-by-step explanation:
We have

We start by calculating square root:

We can rewrite 4 in base of 2:

Now we can calculate this by using rule of same base and different exponent: