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2 years ago

9

Helen dumped her bag of extra coins and found out that she had saved 512 coins. She separated them and counted 96 nickels.

1 answer:

Ivan2 years ago

3 0

Answer:

18.75% see below for explanation

Step-by-step explanation:

96/512 ×100

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297 is the sum of F and 211 write equation (IXL)

Lelechka [254]

297 is the sum of F and 211

297 = f+211

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3 years ago

22<br> g(x) =<br> *+<br> +7<br> What is the average rate of change of g over the interval —2, 4):

kobusy [5.1K]

Answer:

$Rate = 1$

Step-by-step explanation:

Given

$g(x) = x + 7$

Interval: (-2,4)

Required

Determine the average rate of change

This is calculated using:

$Rate = \frac{g(b) - g(a)}{b-a}$

Where:

$(a,b) = (-2,4)$

So, we have:

$Rate = \frac{g(4) - g(-2)}{4-(-2)}$

$Rate = \frac{g(4) - g(-2)}{4+2}$

$Rate = \frac{g(4) - g(-2)}{6}$

Calculate g(4) and g(-2)

$g(4) = 4 + 7 = 11$

$g(-2) = -2 + 7 = 5$

So:

$Rate = \frac{11 - 5}{6}$

$Rate = \frac{6}{6}$

$Rate = 1$

<em>Hence, the average rate of change is 1</em>

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3 years ago

3(-n+4)+5n=2n <br> a. n=3<br> b. no solution<br> c. infinitely many solutions

777dan777 [17]

Answer:

no solutions

Step-by-step explanation:

3(-n+4)+5n=2n

Distribute

-3n +12 +5n = 2n

2n+12 = 2n

Subtract 2n from each side

12 = 0

This is never true so there are no solutions

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