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3 years ago

What's 3c-9d+7c+5d simplify in algebra

Mathematics

2 answers:

disa [49]3 years ago

8 0

Answer:

10c-4d

Step-by-step explanation:

olchik [2.2K]3 years ago

3 0

The answer to

3c-9d+7c+5d is 10c - 4d

Further Explanation

One variable linear equation is an equation that has a variable and the exponent number is one.

Can be stated in the form:

ax + b = c,

where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

x, y = variable

There are several ways to solve an equation

Add / Subtract / divide / multiply the same value on both sides

Combine like terms

Factoring

Expanding

Like terms are terms whose variables and their exponents are the same.

You can combine and add terms

The algebraic form of 3c-9d + 7c + 5d can be simplified:

1. Combine like terms

(3c + 7c) + (-9d + 5d)

2. Add like terms:

10c - 4d

Learn more

an algebraic expression

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Keywords: algebraic expression, combine like terms

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Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3

Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

$\displaystyle \rho=\frac{m}{V}$

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

$m=\rho.V$

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

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Calculating:

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The mass is:

$m=8.09 gr/cm^3 \cdot 523.6\ cm^3$

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Answer:

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Step-by-step explanation:

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Help me please. I’m dying of frustration

KiRa [710]

I've answered this before, but only partially. I'm not sure about the second part, but I think the first one is 10

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