How do you find perimeter of a rectangle?

3(n - 1) < 21<br> Does anyone know the answer and solution?

Likurg_2 [28]

Answer:

$n < 8$

Step-by-step explanation:

$3n - 3 < 21 \\ 3n - 3 + 3 < 21 + 3 \\ 3n = 24 \\ \frac{3n}{3} < \frac{24}{3} \\ n < 8$

6 0

3 years ago

URGENT! ANSWER GETS BRAINLIEST

Nana76 [90]

Colin gets 3/10 , emma and dave 7/10 (ratio 3:2) %287%2F10%29%2F5+=+7%2F50%29

emma 21/50 and Dave 14/50 0r 7/25 of the money

7 0

4 years ago

What is 2d +24 +3d =84

Ymorist [56]

Answer:

12

Step-by-step explanation:

2d+24+3d=84

2d+3d=60

5d=60

d=12

8 0

3 years ago

Read 2 more answers

A sequence of two transformations that can be used to show that polygon ABCDE is congruent to polygon GFJIH

Burka [1]

Two transformations that can be used to show that polygon ABCDE is congruent to polygon GFJIH : <u>rotation -90° and translation (0,2)</u>

<h3>Further explanation</h3>

There are several forms of transformation, including translation, dilation, rotation or reflection

There are 2 shapes of geometry:

Similar figures:

the same shape but different in size,

Congruent figures:

the same size and the same shape

Both polygons will appear congruent if, after being transformed, the two polygons will map exactly to each other

A sequence of two transformations e can do is :

1. rotation -90°

Let point H(4,1) from polygon GFJIH , we rotate -90°

$\left[\begin{array}{ccc}x'\\y'\end{array}\right]=\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\left[\begin{array}{ccc}4-6\\1+1\end{array}\right]+\left[\begin{array}{ccc}6\\-1\end{array}\right]\\\\=\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\left[\begin{array}{ccc}-2\\2\end{array}\right]+\left[\begin{array}{ccc}6\\-1\end{array}\right]\\\\=\left[\begin{array}{ccc}8\\1\end{array}\right]$