Answer:
31.50
Step-by-step explanation:
All you have to do is multiply 35 by 90% or .90
35 x .90 = 31.5
The third side measures exactly 15 centimetres (cm).
(1/3x+3)=5-x
multiply both sides by three
1x+9=15-3x
add 3x to both sides
4x+9=15
subtract 9 from both sides
4x=3
divide both sides by 4 to isolate x
x=3/4
Find the slope of the given equation, -10. Since the new equation is perpendicular the new slope is 1/10. Plug this in with the ordered pair and b is -7