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pentagon [3]
3 years ago
11

Solve each equation. Check your solution. 10z = 40

Mathematics
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:

b.   z = 4

Step-by-step explanation:

Multiply both sides of the equation by 1/10. This gives ...

  (1/10)·10z = (1/10)·40

  z = 4                 simplified

_____

<em>Check</em>

Putting 4 where z is in the original equation should give us a true algebraic expresion. It does.

  10·4 = 40        true

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