Answer:Hope this can help you
Step-by-step explanation:
1x+2x = 18
3x=18
x=6
there are 6 pieces of yellow chalk
1 quart = 2 pints
720/2 = 360 quarts per hour
1 hour = 60 minutes
360/60 = 6 quarts per minute
Answer:
(1, 2)
Step-by-step explanation:
x2-x1/2, y2-y1/2
Plug in the values, and you should get (1, 2)
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