We know that a = b and c = 30
Since b + 30 = 90, we know b = 60.
That means a = 60
a = 60
b = 60
c = 30
So because it was $5 off, and she paid 80% of the original price, that would mean it would have been 20% off. That means 20% = $5. Multiply that by 5 to get to 100% and you find that the shirt is $25 originally. Then you can either multiply that 20% = $5 by 4 to get 80%, or just subtract $5 from the full price. That means Selina paid $20 for the shirt.
You have the answer and need to work backwards using the equation given
A=1/2bh
A=130
b=26
Plug in these numbers to get
130=1/2(26)h
1/2(26)=13
130=13h
Divide both sides by 13
h=10 meters
Answer:
80%
Step-by-step explanation:
Total no. of questions=15
No. of questions answered correctly=12
Percentage of correct answers=(No. of questions answered correctly/Total no. of questions)*100
=(12/15)*100=80%
