coryintheswamp
22.07.2019 •
Mathematics
What is the reason for each step in the solution of the equation? 3(x+2)= 4x+1 drag and drop the reasons into the boxes to correctly complete the table. 3(x+2)= 4x+1 *given* 3x+6= 4x+1 −x+6= 1 −x= −5 x=5 step choices: distributive property, commutative property, addition or subtraction property of equality, multiplication or division property of equality
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Ответ:
3x+6= 4x+1 |Distributive
−x+6= 1 |SPOE (Subtraction Property of Equality)
−x= −5 |SPOE
x=5 |MPOE (Multiplication Property of Equality)
Ответ:
2h 24 min
Step-by-step explanation:
The number of plumbers is constant. We can therefore choose to omit them from our calculations.
10 taps can be done in 2h
What about 12 taps.
This calls for cross multiplication.
(12*2)/10
this gives you 2.4 hrs
to get your answer in standard time format...
(4/10)*60
giving you 24
final answer is 2h 24 min