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Alona [7]
3 years ago
9

Maria has a box of 20 cookies. She gives 2 cookies to each friend. Which expression shows the number of cookies Maria has left a

fter giving cookies to m friends?
A. 2m - 20
B. 20 - 2m
C. 20m - 2
D. 20 + 2m
Mathematics
2 answers:
eimsori [14]3 years ago
8 0
B. 20-2m would be the correct equation!
Anvisha [2.4K]3 years ago
5 0
B is the correct answer
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Solve for zzz. 42=-7(z-3)42=−7(z−3)
xxTIMURxx [149]

Answer:

False

Step-by-step explanation:

Well to solve for z we single it out, distribute, use the communicative property, and combine like terms.

42 = -7(z - 3)42 = -7(z - 3)

Distribute

42 = -7z + 21*42 = -7z + 21

42 = -7z + 882 = -7z + 21

-42 to both sides

-7z + 840 = -7z + 21

-21 to both sides

-7z + 819 = -7z

+7z to both sides

819 = 0

<em>Thus, </em>

<em>the given equation is false.</em>

<em>I hope this helps :)</em>

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3 years ago
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