3 years ago

Write the following using algebraic notation using x as the unknown number:

Mathematics

1 answer:

andrew11 [14]3 years ago

3 0

2X-9 is this what you wanted

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I need to find the slope

QveST [7]

Answer:

m = -3

Step-by-step explanation:

We can find the slope by using

m = (y2-y1)/(x2-x1)

We use two points

(0,-4) and (-2,2)

m = (2 - -4)/(-2 -0)

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= -3

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Consider the following pair of equations:

miv72 [106K]

$3x + 3 = x - 1 \\ 3x - x = - 1 - 3 \\ 2x = - 4 \\ x = \frac{ - 4}{2 } = - 2$
Take X=-2 into y
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(x, y) =(-2,-3)

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Gave needs 60 liters of 40% acid solution he currently has 20% solution and 50% solution how many liters of each does he need to

murzikaleks [220]

<span>percent ---------------- quantity
Acid type I 60.00% ---------------- x liters
acid type II 30.00% ------ 60 - x liters
Mixture 40.00% ---------------- 60
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60 x + 30 ( 60 - x ) = 2400 </span>

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Tpy6a [65]

Answer: c

Step-by-step explanation:

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