Answer:
570
Step-by-step explanation:
Answer:
Graham: -50x + 14,040
Max: 20x + 12,500
Graham = Max
-50x + 14,040 = 20x + 12,500
+50x +50x
14,040 = 70x + 12,500
-12,500-12.500
1,540 = 70x
220 = x
Answer: 220 minutes (3 hours 40 minutes)
PLZ MARK AS BRAINILEST:-)
Answer:

Step-by-step explanation:
Let the numbers be x , y
Sum of two numers = -7
x + y = -7------------(I)
Two times the first number equals 4 the second number.
2x = 4y ----------(II)
Divide both sides by 2

x = 2y
Subtitute x = 2y in equation (I)
2y + y = -7
3y = -7
y = -7/3
Plugin y = -7/3 in equation (II)

Answer:
it's D
Step-by-step explanation:
The answer is 900 because 20×9=180 and just multiply 180×5 and that equals 900.