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oksian1 [2.3K]
2 years ago
11

In the equation above c is a constantly . if n =5 , what is the value of c ?

Mathematics
2 answers:
Vaselesa [24]2 years ago
8 0

Answer:

D

Step-by-step explanation:

5 - Sqrt 11 + 5 = 1

5 - Sqrt 16 = 1

5 - 4 = 1

elena-14-01-66 [18.8K]2 years ago
7 0

Answer:

D

Step-by-step explanation:

Given

5 - \sqrt{c+5} = 1 ( subtract 5 from both sides )

- \sqrt{c+5} = - 4 ( multiply both sides by - 1 )

\sqrt{c+5} = 4 ( square both sides )

c + 5 = 4² = 16 ( subtract 5 from both sides )

c = 11

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We have 55% and 80% antifreeze.  We need 90 gallons of 75%.  

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A) F + E = 90

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A) -.55 F -.55 E = -49.50 (which is -.55 * 90) then adding A) & B)

.25 E = 18

E = 72 gallons of 80% and

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********* DOUBLE CHECK ******************

72 * .80 = 57.60  and 18 * .55 = 9.90

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Source: 1728.com/mixture.htm


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3 years ago
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8 0
3 years ago
Factor 9x 6 – 16y 6 completely.
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hope that helps :)

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3 years ago
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Answer:

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7 0
3 years ago
Read 2 more answers
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