Answer:
4095
Step-by-step explanation:
This Is for the 4.07 K-12 Quiz! <3
Let's solve your equation step-by-step
16.8-(-23.72)-31.3=x
Step 1:simplify both sides of the equation
16.8-(-23.72)-31.3=x
16.8+23.72+-31.3=x
(16.8+23.72+-31.3)=x (combine like terms)
9.22=x
9.22=x
Step 2: flip the equation
Answer: x=9.22
Given:
The sum of two angles 5x and 50 degrees equals 90 degrees.
To find: The value of x
Explanation:
Since the sum of two given angles equals 90 degrees.
So, we can write it as,

Solving for x we get,

Thus, the value of x is 8.
Final answer: The value of x is 8.
Answer:
9: 21 handshakes
a: 21, 34, 55
b: 0, 1, 1, 2, 3, 5, 8, 13