Answer:
x=-5
Step-by-step explanation:
first you subtract the positive 5 from the 20.
second you divide negative 3x into 15
the answer you get should be x=-5
1) If we let the lengths of the legs be x and 2x, then by the Pythagorean theorem,

This means that the length of the hypotenuse is:

2) (Diagram attached) We know that
(in cm)
3) From the Pythagorean identity,

4) 
Answer:
x = 2
Step-by-step explanation:
Since the triangle is right use Pythagoras' identity to solve for x
The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is
x² = 14² + 10² = 196 + 100 = 296
Take the square root of both sides
x =
= 2
Answer:
Hello!
Solve the following system of equations by the substitution method. 5x = y + 6 2x - 3y = 4 What is the value of the y-coordinate?
Solving:
5x = y + 6 (I)
2x - 3y = 4 (II)
god i hope i helped if i did tell me so in not plz still tell me and i will make it better see ya
The first answer is 1 and the second is 0.83333.