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3 years ago

11

-194+4x=76-11x

4x = 76 - 11x" alt=" - 194 + 4x = 76 - 11x" align="absmiddle" class="latex-formula">

1 answer:

Yuki888 [10]3 years ago

6 0

$(x ) = (18)$
x=226
$x = \frac{226}{4 - e}$

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The perimeter of a square is80-64y units. Which expression can be used to show the side length of one side of the square?

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(80-64y)/4
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3 years ago

Cuanto es la raíz cuadrada de 3

marshall27 [118]

La raíz cuadrada de 3 es 1.73

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3 years ago

Flying against the wind, a jet travels 2160 miles in 3 hours. Flying with the wind, same jet travels 6000 miles in 6 hours. What

marissa [1.9K]

Answer:

The velocity of jet in still air is $860miles/hour$ and velocity of wind is $140miles/hour$ .

Step-by-step explanation:

Let x be the rate of the jet in still air and y be the rate of the wind.

Given:

Velocity against wind, a jet travels 2160 miles in 3 hours.

Velocity against wind $=\frac{2160}{3} = 720 miles/hour$

Flying with the wind, same jet travels 6000 miles in 6 hours.

Flying with the wind $=\frac{6000}{6} = 1000 miles/hour$

As such its velocity against wind is $x-y$

and with wind is $x+y$ therefore

$x-y=720$ ------------(1)

$x+y=1000$ ---------------(2)

Adding equation 1 and 2.

$2x=1720$

$x=\frac{1720}{2}$

$x=860$

Put x value in equation 2

$860+y=1000$

$y=1000-860$

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Hence velocity of jet in still air is $860miles/hour$ and velocity of wind is $140miles/hour$ .

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4 years ago

Equation of a line through (-1,-10) which is parallel to the line y=4x+3 has (need the slope and y intercept ) please help

valina [46]

Parallel lines have the same slope but different y intercepts

Slope: 4
y=4x+b
this is the new equation, plug in the point
-10=4(-1)+B
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4 years ago

How many moles of oxygen are required to burn 3.0 mole of C10H8 (naphthalene)?

astra-53 [7]

Answer: 36 moles oxygen

Step-by-step explanation:

C10H8 + 12O2 ====》 10CO2 + 4H2O

From the equation of the reaction,

1 mole of napth requires 12 moles of O2

3 moles of napth would require x moles O2

X = (3 * 12) / 1

X = 36 moles of oxygen.

Therefore 3 moles of naphtalene (C10H8) would require 36 moles of oxygen

6 0

3 years ago