It would take 6

hours or 6.25 hours if John uses the 100 watt pump.
Answer: Either A or B
Step-by-step explanation:
Both A and B are the same answers, but the main answer should be
c+d=17, 4c+2d =54
C represents the number of cows and D represents the number ducks. The two and fours in front of the variables represents the number of legs the repesctive animal has.
c+d would mean how many animals are in the barn. Feel free to clarify the two same answers
Answer: 21
Step-by-step explanation:
420/20=21
Answer:
-11/4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(2-57)/(23-3)
m=-55/20
simplify
m=-11/4
Please mark me as Brainliest if you're satisfied with the answer.
Answer:x=150
Step-by-step explanation:
Step 1: Subtract 1.2x from both sides.
0.8x+20−1.2x=1.2x−40−1.2x
−0.4x+20=−40
Step 2: Subtract 20 from both sides.
−0.4x+20−20=−40−20
−0.4x=−60
Step 3: Divide both sides by -0.4.
−0.4x
−0.4
=
−60
−0.4