3 years ago

I NEE HELPPPPPP!!! AP ENGLISH UNIT 1 PROGRESS CHECK

Advanced Placement (AP)

1 answer:

marusya05 [52]3 years ago

6 0

Answer:

we need the passage to answer

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A DVD costs twice as much as a music CD. Jack buys 2 DVDs and 2 CDs and spends $45. Determine how much one CD costs, in dollars.

Kipish [7]

Let $d=$ the cost of a DVD
Let $c=$ the cost of a CD

We have
$d=2c$
and
$2d+2c=45$

We can replace $d$ with $2c$ in the second equation and get
$2(2c)+2c=45$
$\rightarrow 4c+2c=45$
$\rightarrow 6c=45$
$\rightarrow c=7.5\rightarrow\$7.50$

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4 years ago

Which of the following BEST explains why life on Mercury is most likely impossible?

AleksAgata [21]

Answer:

There are extreme temperature variations, ranging from excessive heat to extreme cold.

Explanation:

Mercury being closest to sun gets extremely hot, but its "night" side (the side that is away from sun at a given time) gets very cold cuz mercury has no atmosphere to trap the heat.

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2 years ago

What is an example of local diversity

fomenos

You think of local diversity as, other people culture.

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4 years ago

Def. for time space compression

Sati [7]

A set of processes that can cause relative distances between places to contract or shrink and make the two places come closer together.

Hope this helps!

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