Answer:
A = C + 16
Step-by-step explanation:
Given
A = B + 12 and B = C + 4, then substitute B = C+ 4 into A, that is
A = C + 4 + 12
A = C + 16
Nothing because you can’t gain anything from 0
1. 75% increase
2. 30% decrease
3. 80% increase
4. 25% decrease
EF || AC ==》 180 - 4x = EBC ( ♡ )
_______________________
And also :
ABD = FBC ==》 FBC = x ( ☆ )
_______________________
EBC = EBF + FBC
( ♡ ) , ( ☆ ) :
180 - 4x = 65 + x
Subtract both sides 65
180 - 65 - 4x = 65 - 65 + x
115 - 4x = x
Add both sides 4x
115 - 4x + 4x = x + 4x
115 = 5x
Divide both sides by 5
115 ÷ 5 = 5x ÷ 5
23 = x
<h2>
<em>x</em><em> </em><em>=</em><em> </em><em>2</em><em>3</em><em> </em></h2>
And we're done ...