Answer:
1/10
Step-by-step explanation:
Ex.) 10%=10/100=1/10=0.1
Hope this explains it.
Equation 1:
x = (5y+11)/2
Substitute equation 1 to 2:
-2((5y+11)/2)+ 3y=-9
-2/2 = -1 thus -1(5y+11)
Continue...
-(5y+11)+3y=-9
-5y-11+3y =-9
(-5+3)y= 11-9
-2y = 2
y=-1
Substitute y into equation 1:
x=(5*-1+11)/2
x = 6/2=3
So y=-1 and x =3
7*11=77 because 7 and 11 are 4 apart Enjoy!=)
Y = 10 units
Explanation:
The two triangles are similar due to Angle-Angle similarity theorem. So, the ratios of their sides are equal
y/14 = 15/(15 + 6)
y/14 = 15/21
y = 10 units