3 years ago

Marisa says 302×6=192 explain why Marisa's answer is not reasonable

Mathematics

1 answer:

cricket20 [7]3 years ago

8 0

She forgot the 0 in the middle, which is why she got 192. The correct answer is 1812

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gizmo_the_mogwai [7]

Answer:

a) -10

b) 7

Step-by-step explanation:

a) $2(x + 3) = x - 4$

$= > 2x + 6 = x - 4$

$= > 2x - x = - 4 - 6$

$= > x = - 10$

b) $4(5x - 2) = 2(9x + 3)$

$= > 20x -8 = 18x + 6$

$= > 20x - 18x = 8 + 6$

$= > 2x = 14$

$= > x = \frac{14}{2} = 7$

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