In the left hand side, you're multiplying 7.8 by ![3.6\times 1](https://tex.z-dn.net/?f=%203.6%5Ctimes%201%20)
In the right hand side, you're multiplying again 7.8 by a mysterious number.
So, the unknown number must be ![3.6\times 1](https://tex.z-dn.net/?f=%203.6%5Ctimes%201%20)
Every number remains unchanged when multiplied by 1, so the answer is 3.6
Since a^2+b^2=c^2 becomes 20^2+b^2=29^2, we solve for b:
400+b^2=841
b^2=441
b=21
So the length of b is 21 units.
Hope this helped!
Answer:
$0.25
Step-by-step explanation:
2.99/12 aprrox. equals 25 cents
Answer:
5) 8/17 = .471
7) 8/17 = .471
8) 15/17 = .88
Step-by-step explanation:
hope that helps