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2 years ago

1. Adelle solved the equation ½ (x + 8) = - 30 as shown.

Mathematics

1 answer:

Deffense [45]2 years ago

5 0

Answer:

-68

Step-by-step explanation:

1/2(x+8)=-30

1/2x+4=-30

You then subtract 4 on both sides which makes:

1/2x=-34

Then you divided 1/2 on both sides:

x=-68

(Did I do this correctly, if not I appologize!)

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If a plate is moving 3.3 cm/yr, what distance [in kilometers (km)] will the plate move in 1 million years?

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$\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}$

3.3cm = 0.000033km (divide by 100,000.

So, 0.000033km/yr.

0.000033 × 1,000,000

=33km

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