2 years ago

Suppose that a person's peak blood alcohol level is0.04 (grams per 100 mL) and that this level decreases by 20% each hour.

Mathematics

1 answer:

igomit [66]2 years ago

5 0

I think cus she said she was she she she

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5-7y/2+4y equals -8/7

Ksenya-84 [330]

Answer:

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Step-by-step explanation:

$= > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3$

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3 years ago

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7nadin3 [17]

$x^2+3x-10=0\\
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Paha777 [63]

Step-by-step explanation:

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3 years ago

Justify each step in the solution of the equation 5(x+2)=24-2x

Lady bird [3.3K]

Answer:

x=2

Step-by-step explanation:

5(x+2)=24-2x

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5x-(-2x)+10=24

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3 years ago

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2 years ago

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Suppose that a​ person's peak blood alcohol level is0.04 ​(grams per 100​ mL) and that this level decreases by 20​% each hour.

Suppose that a person's peak blood alcohol level is0.04 (grams per 100 mL) and that this level decreases by 20% each hour.