2x+3y=3 and 3x-2y=11 what is the solution to the system

Answers

Answer 1

Answer: 2x + 3y = 3
3x - 2y = 11

( 2x + 3y = 3 ) *3
6x + 9y = 9

( 3x - 2y = 11 ) * 2
6x - 4y = 22

subtract those two equations
13y = -13
y = -1
x = 3

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How do you find the volume of an L-Block

Answers

To work this out, you need to picture the L as two different cuboids.

The " I "part of the L and the " - " part of the L .

You get the dimensions of "height, width, length" of the " I " part, multiply them together. Save this number

Then you do the same for the " - " part of the L. Save this number

Add the two numbers you saved.

Five eighths added to Q number is 4. Determine the number.

Answers

Yes five eights added to Q is 4!

Which of these is a simplified form of the equation 7p + 4 = − p + 9 + 2p + 3p? A 13p = 13

B 3p = 5

C 7 = 4
D 11 = 15

Answers

Answer:

Option (b) is correct.

3p = 5

Step-by-step explanation:

Given : equation 7p + 4 = − p + 9 + 2p + 3p

We have to write the simplest form of the equation 7p + 4 = − p + 9 + 2p + 3p and choose the correct from the given options.

Consider the given equation

7p + 4 = − p + 9 + 2p + 3p

Simplify , for p on right side by adding similar terms, we get,

7p + 4 = 9 + 4p

Now subtract 4p both side, we have,

7p - 4p + 4 = 9 + 4p - 4p

Simplify , we have,

3p + 4 = 9

Subtract 4 both side, we have,

3p + 4 - 4 = 9 - 4

Simplify, we have,

3p = 5

Thus, Option (b) is correct.

i think the answer is B 3p = 5

solve the triangle. round lengths to the nearest tenth and angle measures to the nearest degree a=7 b=7 c=5

Answers

Hello,

a,b,c are the sides.

1) first idea
Theorem of Al' Kashi (genralized pythagorean theorem) will help us

a²=b²+c²-2bc cosA ==>49=49+25-2*7*5*cos A
==>cos A=25/70=5/14 ==>
A=69,075167572361683699967605141899 °≈69°

b²=a²+c²-2ac cos B ==> 49=49+25-2*7*5 * cos B==>cos B=5/14
B=A (triangle is isocele ==> a second method)

C=180-2*69=42°

II)
The triangle isocele is formed with 2 right triangles.
(base=5/2 hypotenuse=7)

cos B=(5/2)/7=5/14 (the same) ==>B=69°
A=B=69°
C=42°

Can you factor 30 X square minus 5X to the third

Answers

30x^2 - 5X^3 = 5*6*x^2 - 5*x^2*x = 5x^2( 6 - x ).

Please help me I am having a REALLY rough morning thank you Which point should be removed for the graph to represent a table of equivalent ratios?
A. (2, 10)
B. (3, 15)
C. (4, 20)
D. (5, 15)

Answers

Answer: seriously the same question twice?

Step-by-step explanation:

Choice D like I said

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