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DaniilM [7]
2 years ago
12

I need the answers for 21 and 22

Mathematics
1 answer:
Trava [24]2 years ago
5 0

Answer:

21.b

22.c

Step-by-step explanation:

idk how to explain it lol I did mental math

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Please help! I was also wondering if someone can list specific topics i should focus on for my algebra exam
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Answer:

Solving basic equations & inequalities (one variable, linear)

Linear equations, functions, & graphs.

Sequences.

System of equations.

Two-variable inequalities.

Functions.

Step-by-step explanation:

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2 years ago
You need a 75 % alcohol solution. On hand, you have a 260 mL of a 30% alcohol mixture. You also have 95 % alcohol mixture . How
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30 \: percent \: alcohol \: in \: 260 \: ml \\ alcohol = 0.3 \times 26 0= 78 \: ml

c( \gamma ) =  \frac{78 +  0.95\gamma }{260 +  \gamma }  \times 100

c( \gamma ) = 75

\frac{78 +  0.95\gamma }{260 +  \gamma }   = 0.75

78 +  0.95\gamma  = 0.75 \gamma  + 195 \\ 0.2 \gamma  = 117 \\  \gamma  = 585

we \: need \: 585 \: ml \: of \: 95% \: alcohol

6 0
1 year ago
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Rewrite the equation in logarithmic form: 4^3 = 64
storchak [24]
4^3 = 64

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The exponent always comes to the other side.
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2 years ago
What percent of the people get less than eight hours of sleep each night? [Type your answer as a number.]
Shalnov [3]

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Step-by-step explanation:

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