Answer:b c eStep-by-step explanation:
Answer:
SSS
Step-by-step explanation:
Only sides are given, not angles, so you know it's side-side-side
How much part can sally paint in an hour ?
a ÷ 7 = a/7
And what about Steve ?
a ÷ 9 = a/9
Where, a is the total area of the room.
So, let the time taken by both of them to paint the room together be 't'
So,
t(a/7 + a/9) = a
t(9a/63 + 7a/63) = a
t(16a/63) = a
t = 63/16 ≈ 4 hr
Answer:
below
Step-by-step explanation:
1)
y = -2x/3 - 4
m = 2x/3
b= 4
2)
y= -x +2
m= -1
b = +2
3)
y= -x-2
m = -1
b =-2