X=5+y
x+y=-15
subsitute 5+y for x
5+y+y=-15
5+2y=-15
minus 5 from both sides
2y=-20
divide both sides by 2
y=-10
sub back
x=5+y
x=5-10
x=-5
the numbers are -10 and -5
Answer:
1440.08 mi
Step-by-step explanation:
Pythagorean Theorem:
= 1440.08
[ 2x + y = -9 ] x -3
[- 3x +11= y ] x 2
-6x -3y = 27
-6x + 22 = 2y
-6x +27 = 3y
-6x +22 = 2y
5 = y
-6x -3x5 = 27
-6x -15 = 27
-6x = 42
-x = 42/6
-x = 7
x = -7
answer
x = -7
y = 5
Answer:
(-10)² = -10 x -10 = 100
- 10² = - (10 x 10) = - 100
Step-by-step explanation:
(-10)² = -10 x -10 = 100
- 10² = - (10 x 10) = - 100
