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3 years ago

A chemist mixes 125 milliliters of a solution that is 18% acid with 500 milliliters of pure acid.

Mathematics

1 answer:

Scrat [10]3 years ago

3 0

How Manet millionaire of acid are

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Translate this sentence into an equation.

Anit [1.1K]

Answer:

Step-by-step explanation:

40-j=8

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3 years ago

So do yall know this?

ddd [48]

Answer:

Length: meter

Mass: Kilogram

Volume of a solid: Cubic meter

Volume of a liquid: Liters

Temperature: Degree Celsius

Time: second

The formula for calculating density:

$p = \frac{m}{v}$

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3 years ago

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Need help on my math only have today till I turn int tomorrow

Aneli [31]

Hope this helps explain what was needed to be solved! :)

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3 years ago

What's the explicit rule for the sequence 3, -6, 12, -24, 48, ...?

777dan777 [17]

Answer:

$\sf \dfrac{-3}{2}(-2)^n$

Step-by-step explanation:

Explicit formulas are used to represent all the terms of the geometric sequence with a single formula.

$\sf \boxed{\bf t_n = ar^{n-1}}$

a is the first term.

r is the common ratio.

r = second term ÷ first term.

3 , - 6 , 12, - 24, 48 ,........

a = 3

r = -6 ÷ 3 = -2

$\sf t_n = 3*(-2)^{(n-1)}\\\\$

$\sf = 3*(-2)^{n}*(-2)^{-1}\\\\ =3*(-2)^n*\dfrac{-1}{2}\\\\= \dfrac{-3}{2}(-2)^n$

Check:

$\sf t_1 =\dfrac{-3}{2}*(-2)^1=\dfrac{-3}{2}*(-2) = 3\\\\\\t-2 = \dfrac{-3}{2}*(-2)^2 = \dfrac{-3}{2}*4=-6\\\\\\t_3=\dfrac{-3}{2}*(-2)^3=\dfrac{-3}{2}*(-8)=12$

4 0

2 years ago

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What is two decimal that are equivalent to 2.145

Amanda [17]

Answer:

Two decimals that are equivalent to 2.145 are 2.1450 and 2.145.

Step-by-step explanation: If you are trying to find an equivalent decimal to anything the easiest way is to add zeros to the end.

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3 years ago

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