MATHEMATICS HIGH SCHOOL

What is the solution to the system of equations?

y=3x+6
3x-y=6

Answers

Answer 1
Answer: 1st equation: y = 3x + 6
2nd equation: 3x - y = 6

Substitute the y in the 2nd equation by its value in the 1st equation.

y = 3x + 6
3x - y = 6

3x - (3x + 6) = 6
3x - 3x - 6 = 6
-6 = 6 NOT A SOLUTION

3x -y = 6
3x = 6 + y
x = (6 + y)/3

y = 3x + 6
y = 3((6+y)/3) + 6
y = 6 + y + 6
y = 12 + y
y - y = 12
0 = 12 NOT A SOLUTION

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Solve the equation
-13v=195

A. -1/15
B. 15
C. 1/15
D. -15

Answers

Good Morning

-13v=195

Divide both sides by -13

-13v/-13= 195/-13

v= -15

Answer: D

I hope that's help !


Triangle RST is the pre-image of triangle UVW with a scale factor of 3. Find the area of triangle UVW if the area of triangle RST is 9 cm2. a.) Set up an equation on how to solve for the missing area using the Area Ratios for Similar Figures.

b.) What is the area of triangle UVW?

Answers

A. (Area of triangle UVW)/(Area of triangle RST)=3^2=9
B. Substitute Area of triangle RST=9 into the equation above.

(Area of triangle UVW)/9=9
Area of triangle UVW =9x9=81 cm^2

Using the numbers -4, 10, 8, 2, -3, -5, create an expressions that equals to 6.

Answers

Answer:

10+(-4)=6

Step-by-step explanation:

Answer:

-4 + 10

Step-by-step explanation:

There are 12 rabbits in a cage. The ratio of white rabbits to all rabbits is 3:4. How many white rabbits are in a cage?

Answers

12:4 = 3
3x3=9
9 white rabbits
9 rabbits :-) That's it

If point A is between B and C then BA + AC = BC.

Answers

If point A is between B and C then BA + AC = BC. This is always true.
Yes, that is correct

What ratio is equivalent to 8/9

Answers

That would be 8:1 because,
denomiator (9) - numerator (8) = 1
and the numerator stays same.
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