First, you need to distribute the right side of the equation : 8n - 2
Now the equation is : 20 - 7n = 8n - 2
Add 2 to both sides : 22 - 7n = 8n
Add 7n to both sides : 22 = 15n
Divide both sides by 15 : ( I had to round this one) 1.5 = n
Because the ratio of a 45,45,90 triangle is 1:1: square root 2, x=4.
:)
4 is 80% of 5, because 1 is worth 20%
Answer:
i think its 42.77... might be wrong tho
Step-by-step explanation:
being marked down by 60 percent means to multiply original number by 0.4
so we get 39.6
the multiply it by 1.08 to get 42.768
