Answer:
Step-by-step explanatio............................................
Cos 28 = 18/ y
so
y = 18 / cos 28
y = 18 /.8829
y = 20.4
1/2x+20=1/3x+30
Subtract 20 on both sides
1/2x=1/3x+10
Subtract 1/3x on both sides
1/6x=10
Multiply by 6 on both sides
X=60
Answer:
I think the last one
Step-by-step explanation:
Answer:
5a
Step-by-step explanation:
5 * a = 5a
Can you please mark this as brainliest ? thank you