Answer:
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
3x+7=-x-1
4x+7=-1
4x=-8
x=-2
Answer:
(1, 2 )
Step-by-step explanation:
Under a rotation about the origin of 180°
a point (x, y ) → (- x, - y ), thus
W(- 1, - 2 ) → W'(1, 2 )
Answer:
Step-by-step explanation:
5r + 2b = 14 (5 lbs of oranges and 2 lbs of bananas = $14)
3r + 6b = 18 (3 lbs of oranges and 6 lbs of bananas = $18)
Let's use the elimination method. Multiply the first equation by -3:
-15r - 6b = -42
3r + 6b = 18
-----------------
12r = 24
Divide by 12:
r = 2
If she has 6 dogs and can only walk 2 at a time, she can take 3 pairs of dogs out.