The answer is 10.1
.9(15) - 1.7(2)
13.5 - 3.4
10.1
Imagine a 'U' shape
sides are x legnth
base is b legnth
2x+b=25
area is height times base=xb
xb=50
2x+b=25
solve
minus 2x both sides
b=25-2x
sub for b
x(25-2x)=50
25x-2x^2=50
times -1 both sides
2x^2-25x=-50
add 50 both sides
2x^2-25x+50=0
use quadratic formula or something
x=2.5 or 10
A is the answer
Answer:
I'm in 8th grade too, It's easy to pass math, Just take a screenshot of your hw, then submit it, My math teacher doesn't care if I just submit it.
Step-by-step explanation:
The Prime Factors of 170: 2 • 5 • 17
