Answer:
97.96 cm
596.14 cm²
Step-by-step explanation:
sides become:
- 30 cm ⇒ 16 cm
- 25 cm ⇒ 11 cm
and added corners:
- 4*2πr/4= 2πr = 2*3.14*7 cm= 43.96 cm
then perimeter is:
- P= 2*16+2*11+43.96= 97.96 cm
the area left is:
- A= 30*25- 4*1/4*3.14*7²= 596.14 cm²
Answer:
y = 33/5 or 6.6
Step-by-step explanation:
7y + 44 = 12y + 11
-11 -11
7y + 33 = 12y
-7y -7y
33 = 5y
Divide both sides by 5
= 33/5 or 6.6
To solve this equation, you need to use the distributive property. You first multiply 3 and a and you get 3a. Then you multiply 3 and -1 and you get -3. You add -3 to 34 which is 31. Then you divide 31 by 3 and you get 10.3. Unfortunately. I have no idea how to explain why backtracking helps you solve the equation but I hope this helps you a little bit.
