Answer:
A-8
Step-by-step explanation:
Any other higher number plugged in makes the equation false
Answer:
it will take 7 nights
Step-by-step explanation:
Sorry I'm not sure if I'm right just my thinking...
set the number to be x so that (5x+2)(3x-4)??
Answer:
d:e is 2:3
Step-by-step explanation:
if 'e' is 150% more than 'd' we can say that 'e' is 1.5 and 'd' is 1
ratio of 1/1.5 or 1÷3/2 is 2/3
Let us try and solve it analytically. We have that the side=x+3 together with the short side=s and the diagonal=x+4 satisfy the Pythagorean Theorem. Then we have that

. This yields

which yields s^2=2x+7, hence a) is the correct answer.