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lidiya [134]
3 years ago
14

2. Let z represent the unknown number. Write expressions for:

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
7 0
I think it’s gonna be d.
Aliun [14]3 years ago
4 0

Answer:

a. z+3

b. 2z - 4z

c. z + z^2

d. 2z/(z+4)

Hope it helped.

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nadya68 [22]
System of equations:
y = 6x + 104
y = 10x + 60
 
Method : <span>Substitution
Since the both equation is equal to y, you can substitute one equation for the other equation's y:
</span>
y = 6x + 104

10x + 60 = 6x + 104
-6x   -60  =-6x  -60
-------------------------------
4x = 44
----  -----
 4      4

x = 11

Answer : It would take 11 days.



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