Answer:
x=3.5
Step-by-step explanation:
subract 5 on the other side, than divide by 2
Plug in 2 for x. f(20=2-51 = -49
3u + 4u + 2u = 9u
9u = 90
1u = 90/9 = 10
since black is 2u ( from the ratio given)
2u = 10 x 2 = 20
Answer : 20cm of the pole is painted black.
The bar diagram is in the picture :)
1rst step is 7×22=154
2nd step is 8-2=6
3rd step is 154+6=160
Last step is 160÷3=53.3333333333
I hope this helps it will be b because 53.3333333333 is near 60