Answer:
13/18
Step-by-step explanation:
1. 
2. 
3. 
4. 
5. 
Answer:
- first side: 55 cm
- second side: 60 cm
- third side: 50 cm
Step-by-step explanation:
The problem statement gives all the side lengths in terms of that of the second side. Let s represent the length of the second side in cm. Then the length of the first side is (2s-65), and the length of the third side is (s-10). The perimeter is the sum of all the side lengths:
165 = (2s -65) +s +(s-10)
165 = 4s-75
240 = 4s
60 = s . . . . . . . . second side
2s-65 = 55 . . . . first side
s-10 = 50 . . . . . . third side
In order, the side lengths are 55 cm, 60 cm, 50 cm.
Answer:
On the first one its 14-8
Step-by-step explanation:
Because PEMDAS says that parentheses comes first
Parentheses first
exponents 2nd
Multiply 3rd
divide 4th
add 5th
and subtract 6th
