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2 years ago

Can you help me solve -3(y-4)=18

Mathematics

2 answers:

VikaD [51]2 years ago

6 0

First you have to distribute. -3y +12=18. -3y=6. y= -2.

svp [43]2 years ago

6 0

First divide -3 by both sides. so then you will have (y-4)= -6 then you take the parenthesis away. y-4=-6 Now you add 4 to each side because addition is the opposite of subtraction. y= -6 + 4 which then becomes y= -2

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Is 0.8-3 equal to -2.2

Marysya12 [62]

Answer:

Yes, they are equal.

Step-by-step explanation:

-3.0 + 0.8 = -2.2

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2 years ago

Find the distance between each pair of points. round your answer to the nearest tenth.

goldenfox [79]

Answer:

5.4

Step-by-step explanation:

To find the distance between each pair of points, we use the distance formula, which is:

d = $\sqrt{(x_{2}-x_{1})^2 + (y_{2} -y_{1})^2 }$

So we have

$x_{1} = 2\\ x_{2} = 4\\y_{1} = 8\\y_{2}=3$

When we plug in the values into the formula we get:

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2 years ago

Read 2 more answers

If x+y=9, and 8(x+3y)= 120, what is the value of x-y

Triss [41]

Answer:

Explanation:

Apply Multiplicative Distribution Law:

{x + y =9

{8x + 24y = 120

Reduce the greatest common factor on both sides of the equation.

{x + y = 9

{x + 3y = 15

Subtract the two equations: x + y - (x +3y) = 9 - 15

Remove paranthesis: x + y - x - 3y = 9 - 15

Cancel the unknown variables: y - 3y = 9 - 15

Combine like terms: -2y=9 - 15

Calculate the sum or difference: -2y = -6

Reduce the greatest common factor on both sides of the equation: y =3

Substitute one unknown quantity into the elimination: x + 3 = 9

Rearrange unknown terms to the left side of the equation: x = 9 - 3

Calculate the sum or difference: x = 6

Write the solution set of equations: {x = 6

{y = 3

Substitute: 6 - 3

Calculate the sum or difference: 3

Answer: 3

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2 years ago

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Rainbow [258]

Answer: 0 - 4

Step-by-step explanation:

0 - 4 = -4

-3 + 4 = 1

1 - 5 = -4

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3 years ago

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What is the degree of this polynomial? x ^ 3 + xy + x * y ^ 2 + 5y + 3

ludmilkaskok [199]

Answer:

The degree of the given polynomial is 3.

Hope it will help :)

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3 years ago