All categories

3 years ago

Steps for solving 3x + 18 = 54 are shown.

1 answer:

7 0

By subtracting 18 to both sides you are separating the 3x because you are not ready to isolate the variable (x) in step 1

You might be interested in

Please help ? Question 27 and question 28

ozzi

Answer:

Rhe first question answer is and the second question answer is c

4 0

3 years ago

100 POINTS AND WILL GET BRAINLIEST!!

ArbitrLikvidat [17]

Answer:

-6.38%

-26.60%

-1.95%

-1.24%

-26.60%

-16.84%

Step-by-step explanation:

It might be wrong because i can't see clearly the chart.. So you can follow these steps to calculate by yourself

[(Type of group)÷total number of people]×100%

7 0

1 year ago

The midpoint of an is me -2,-6 if the coordinates of a are 1,-4 what are the coordinates of b

nalin [4]

Given:

$\text{ The midpoint of }\bar{AB}\text{ is }M(-2,-6).\text{ Co-ordinates of A are }(1,-4).$

Required:

What are the coordinates of B?

Explanation:

We know the mid-point of of line between two points is:

$(x,y)=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Now, let point B(x1, y1)

$\begin{gathered} (-2,-6)=(\frac{1+x_1}{2},\frac{-4+y_1}{2}) \\ \text{ Equate Co-ordinates} \\ \frac{1+x_1}{2}=-2 \\ 1+x_1=-4 \\ x_1=-5 \\ and \\ \frac{-4+y_1}{2}=-6 \\ -4+y_1=-12 \\ y_1=-8 \end{gathered}$ $\text{ Point B is }(-5,-8)$

Answer:

Hence, (-5,-8) is point B.

3 0

1 year ago

PLEASE HELP this is due tomorow and im not finsihed yet :(

pychu [463]

0.02 = 2%
because 1 is equal to 100%
then 0.02 times 100 =2%

7 0

3 years ago

write the x and y coordinate (in the second and third column, respectively) of dilation of quadrilateral ABCD with vertices A(1,

gayaneshka [121]

Answer:

The coordinates of the dillated vertices are $A'(x,y) = (2,2)$ , $B'(x,y) = (4,4)$ , $C'(x,y) = (8,2)$ and $D'(x,y) = (4,-2)$ .

Step-by-step explanation:

From Linear Algebra, we define dilation by the following equation:

$P'(x,y) = O(x,y) + k\cdot [P(x,y)-O(x,y)]$ (1)

Where:

$O(x,y)$ - Center of dilation, dimensionless.

$P(x,y)$ - Original point, dimensionless.

$k$ - Scale factor, dimensionless.

$P'(x,y)$ - Dilated point, dimensionless.

If we know that $O(x,y) = (0, 0)$ , $k = 2$ , $A(x,y) = (1,1)$ , $B(x,y) = (2,2)$ , $C(x,y) = (4,1)$ and $D(x,y) = (2,-1)$ , then the dilated points are, respectively: