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2 years ago

Find x when y=6 in the literal equation 5x+4y=39

Mathematics

1 answer:

sergeinik [125]2 years ago

5 0

The equation is like this 5×3 + 4×6 = 39
X = 3
Brainly would be awesome ❤️

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A, B, and C are collinear, and B is between A and C. The ratio of AB to BC is 1:4.

schepotkina [342]

Let point C has coordinates $(x_C,y_C).$ Consider vectors

$\overrightarrow{AB}=(x_B-x_A,y_B-y_A)=(8-9,6-9)=(-1,-3),\\ \\\overrightarrow{BC}=(x_C-x_B,y_C-y_B)=(x_C-8,y_C-6).$

Since the ratio AB to BC is 1:4, you have that

$\dfrac{-1}{x_C-8}=\dfrac{1}{4}\quad \text{and}\quad \dfrac{-3}{y_C-6}=\dfrac{1}{4}.$

Find $x_C$ and $y_C:$

$x_C-8=-4,\\ \\x_C=-4+8=4,\\ \\y_C-6=-3\cdot 4=-12,\\ \\y_C=-12+6=-6.$

Answer: C(4,-6)

7 0

2 years ago

Read 2 more answers

Find the altitude and area of an equilateral triangle

Nataliya [291]

If you look at the attached graphic, you will see that the altitude (or height) of an equilateral triangle is:
Height = side length * sq root (3) / 2
Area = side^2 * sq root (3) / 4

4 0

2 years ago

Which principle prevents a government from becoming too powerful?

tino4ka555 [31]

Comment: I think you got this in the wrong section but I’ll still answer it anyways.

Actual Answer: system of checks and balances

Step-by-step explanation: A system of checks and balances stops one branch of government from becoming too powerful.

Additional Note: I hope that this helps you and have a wonderful day!

7 0

2 years ago

Slove the equation r+ 3 = (r - 5) explain step by step please

grigory [225]

Answer:

no solutions

Step-by-step explanation:

Solving

Step 1: Subtract 3 from both sides.

$r+3-r=r-5-r$
$3=-5$

Step 2: Subtract 3 from both sides.

$3-3=-5-3$
$0\neq -8$

Therefore, there are no solutions to this equation.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

4 0

1 year ago

Read 2 more answers

Solve the equation and enter the value of x below. x(8 + 9) = 34

vodomira [7]

$\huge\boxed{\mathfrak{Answer}}$

$x(8 + 9) = 34 \\ 8x + 9x = 34 \\ 17x = 34 \\ x = \frac{34}{17} \\ x = 2$

=> The answer is 2.

5 0

2 years ago