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allochka39001 [22]

2 years ago

14

In 2015, the population of the United States was about 320 million people. About 7 out of 10 Americans live in urban areas. How

many Americans live in or near large cities? 224 million 32 million 96 million 10 million
plz I need help fast

1 answer:

Kay [80]2 years ago

7 0

224million is the correct answer.
7/10 of 320,000,000 is 224,000,000

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Find how many two digit numbers are divisible by 3

Bad White [126]

I'll use arithmetic series to find it.

First two-digit number divisible by 3 is 12, last such number is 99. Every 3rd number is divisible by 3.

So,

$a_1=12\\a_n=99\\d=3\\n=?\\\\a_n=a_1+(n-1)\cdot d\\99=12+(n-1)\cdot 3\\3n-3=87\\3n=90\\n=30$

<u>There are 30 such numbers.</u>

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3 years ago

If a line slope of -1/2 contains the point (2,3), then it must also contain which of the following points?

tiny-mole [99]

Before the fraction: -1/2, i have a negative sign
use y=mx+b
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check your work
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3 years ago

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vesna_86 [32]

Answer:

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Step-by-step explanation:

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2 years ago

Y = -x^2<br><br>Answer the problem.

Vinil7 [7]

Answer:

x=0

Step-by-step explanation:

substitute y=0

0= -x^2

then swap the sides

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2 years ago

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