All categories

2 years ago

How many solutions does this system have? -6x + 18y = 264. - 12x - 36y = 130 . PLS HELP ill give brainliest

Mathematics

1 answer:

Alchen [17]2 years ago

8 0

Answer:

x=−44 + 3y

x= $-\frac{65}{6} - 3y$

Step-by-step explanation:

plz mark brainliest

You might be interested in

An ice chest contains six cans of apple juice, eight cans of grape juice, four cans of orange juice, and two cans of mango ju

Katena32 [7]

6+8+4+2=20
2/20 to grab mango can = 1/10
8/19 (remove one for previous) fro grape juice
6/18 for apple juice = 1/3
1/10*8/19*1/3
=
8/570
=
4/285

8 0

3 years ago

a photo album contains small and large photographs. Each large photograph has side lengths that are twice the side lengths of ea

zysi [14]

Take the area of the small photograph and divide it by four, assuming it's a square, each side would then be 6 inches. The large photograph has double the side length of the small one, so 6 multiplied by 2 is 12. To find the area of the large (square) photograph, multiply 12 by 12 as two of the sides, and the area of the large photo is 144 square inches

4 0

2 years ago

Read 2 more answers

A UFO is coming in to pick up some test subjects. Their elevation above the ground is 60,000 feet. Their laser sights tell them

charle [14.2K]

Answer:

41.83°

Step-by-step explanation:

It is given that :

The vertical distance of the UFO from the ground = 60,000 feet

The diagonal distance of the landing area to the UFO = 90,000 feet

In order to find the angle of depression, we have to use the trigonometric ratios, i.e.,

$\sin \ \theta = \frac{\text{perpendicular distance}}{\text{hypotenus}}$

$\sin \ \theta = \frac{60,000}{90,000}$

$\sin \ \theta = \frac{2}{3}$

$\sin \ \theta = 0.667$

∴ $\theta = \sin^{-1 }(0.667)$

= 41.83°

3 0

3 years ago

ERROR ANALYSIS In Exercises 39 and 40, describe and

expeople1 [14]

Answer:

39. r = 13.4

40. m = 12

Step-by-step explanation:

39. Given the equation, $-0.8 + r = 12.6$ , to solve for r, the following are the correct steps to take to arrive at the solution:

$-0.8 + r = 12.6$ (given)

Add 0.8 to both sides of the equation (addition property of equality)

$-0.8 + r + 0.8 = 12.6 + 0.8$ (this is where the error occurred.)

$r = 13.4$

40. The correct steps to take in solving the equation, $-\frac{m}{3} = -4$ is as follows:

$-\frac{m}{3} = -4$ (given)

Multiply both sides by 3 (multiplication property of equality)

$3*-\frac{m}{3} = 3*(-4)$

$-m = -12$ (this is where the error occurred. This is what we should have at this line/step)

$m = 12$ (dividing both sides by -1)

6 0

3 years ago

Please help! I will mark brainliest!

Maurinko [17]

$\left(3.5\times 10^{-2}\dfrac{kg}{L}\right)\times\left(2.64\times 10^{20}\,L\right)=(3.5\times 2.64)\times 10^{(-2+20)}\,kg\\\\=\bf{9.24\times 10^{18}\,kg}$

_____

Multiply the numbers and add the exponents.

4 0

3 years ago

How many solutions does this system have? -6x + 18y = 264. - 12x - 36y = 130 . PLS HELP​ ill give brainliest

How many solutions does this system have? -6x + 18y = 264. - 12x - 36y = 130 . PLS HELP ill give brainliest