By just changing the x and numbers you can solve it:
-4x=-8 => x=2
Answer:
Step-by-step explanation:
26-$15.50=10.5
10.5/1.5=7
he can ride 7 rides in one day
Answer:
(x + 5)(x + 4)
Step-by-step explanation:

Answer:
2+2= 4 and 2÷2= 1
Step-by-step explanation:
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Answer:
24.83 hours
Step-by-step explanation:
Given that :
Let time taken by pumps be :
Pump A = 60 hours
Pump B = 80 hours
Pump C = 90 hours
Recall :
Rate = 1 / time taken
The rates of the pumps are :
Pump A rate = 1 / 60
Pump B rate = 1/80
Pump C rate = 1/90
Combined rate : 1/60 + 1/80 + 1/90
Combined rate = (12 + 9 + 8) / 720 = 29/720
Combined rate = 29/720
The time taken together will be :
1 / combined rate = 1/(29/720) = 720 / 29 = 24.827 hours