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guapka [62]
3 years ago
9

Fred has a bag of coin with only nickels and quarters. He got $20 by

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

75 quarters 25 nickels

Step-by-step explanation:

q=quarters n=nickels

q+n=100   n=100-q

0.25q +0.05(100-q)=20

From now I will multiply  by 100 to avoid decimals

25q + 5(100-q)=2000

20q=1500

q=75       n=25

75*0.25= 18.75

25*0.05=1.25

18.75+1.25=20

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7 0
3 years ago
Let the graph of g be a translation 5 units up followed by a reflection about the y−axis of the graph of f(x)=6x. Write a rule f
yan [13]

Reflections and translations are instances of transformation.

<em>The rule of function g for the given reflection and translation is </em>g(x) =-6x + 5<em />

<em />

Given

f(x) = 6x

<u>The rule of translating 5 units up is:</u>

(x,y) \to (x,y+5)

So, we have:

f'(x) = f(x) +5

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<u>The rule of reflecting about the y-axis is:</u>

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So, we have:

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Hence, the rule of function g is: g(x) =-6x + 5

Read more about function transformations at:

brainly.com/question/13801312

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3 years ago
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Answer:

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Step-by-step explanation:

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