A number is divisible by 9<span> if the sum of its digits is </span><span>divisible by 9
here the sum 39 not divisible by 9 </span>
Answer:
4.8
Step-by-step explanation:
We can use pythagorean theorem:
a^2 + b^2 = c^2
4 + 9 = c^2
13 = c^2
sqrt of 13 = c
Hope this helps!
Equation = a² + b² = c²
a = 80
b = 39
c = Diagonal
a² + b² = c²
80² + 39² = c²
6400 + 1521 = c²
c² = 7921
c = √7921
c = 89
Answer = 89 units
15x + 28y = 116
x + y = 6
that would be ur system of equations