3 years ago

Jenny uses 7/9 gallon of water to water roses

Mathematics

1 answer:

jeka943 years ago

8 0

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Write down and simplify the following algebraic expressions. The sum of −3x+5 and 7−4x is subtracted from 5x+17.

andriy [413]

Sum of the first two is:
-3x+5+7-4x = -7x+12
That subtracted from 5x+17:
5x+17-(-7x+12) = 12x+5

5 0

3 years ago

A sample of gold has a mass of 579 g. The volume of the sample is 30 cm3. What is the density of the gold sample?

Ugo [173]

The density of the gold sample is 19.3g/cm³

Let the mass of the gold sample be represented by m

m = 579 g

Let the volume of the gold sample be represented by V

V = 30 cm³

Let the density of the gold sample be represented by ρ

The formula for the density is:

$Density = \frac{Mass}{Volume}$

$\rho = \frac{m}{V} \\\rho = \frac{579}{30} \\\rho = 19.3 g/cm^3$

The density of the gold sample is 19.3g/cm³

Learn more here: brainly.com/question/17780219

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3 years ago

What is 4n + 3 ( n – 5 ) + 2 simplified? I suck At math sry

Tema [17]

Answer:

$7n−13$

Step-by-step explanation:

$4n+3(n−5)+2$

$4n+3n+3 \times (−5+2)$

$4n+3n−15+2$

$7n−15+27n-15+2$

$7n−13$

<h3>Hope it is helpful....</h3>

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3 years ago

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Please help me nowww<br> I need this right away!!

Alex777 [14]

Answer: i cant help you because it don't make sense

Step-by-step explanation:

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3 years ago

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Write the equation of a line, in general form, that has an slope of zero and a y-intercept of (0,4).

vaieri [72.5K]

Answer:

y - 4 = 0

Step-by-step explanation:

They give you the y coordinate, 4, and the x coordinate as 0.

Put 4 in as y.

4 - 4 = 0. That means x = 0 and that is right.

To make sure it has a slope of zero, subtract 4 on both sides.

You get : y = 4. This means that the line will be straight and it will have a slope of zero.

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3 years ago