using pythagorean theorem
a^2 + b^2 = c^2
(12x)^2 + (16x)^2 = 10^2
square each term
144x^2 + 256x^2 = 100
combine like terms
400 x^2 = 100
divide by 400 on each side
x^2 = 1/4
take the square root on each side
x = 1/2
Answer: x=1/2
Answer:(3x + 7) (x +5)
Step-by-step explanation:
1/3 of 45 is 15.
So 45-15= 30.
1/5 of 30 is 6.
So 30-6=24.
There are 24 houses left to be sold.
