[ 2x + y = -9 ] x -3
[- 3x +11= y ] x 2
-6x -3y = 27
-6x + 22 = 2y
-6x +27 = 3y
-6x +22 = 2y
5 = y
-6x -3x5 = 27
-6x -15 = 27
-6x = 42
-x = 42/6
-x = 7
x = -7
answer
x = -7
y = 5
3^3 is equal to 3 * 3 *3, which is equal to 27
Let w = weight of each bag, kg
There are 222 bags and one backpack that weighs 4 kg.
The total weight of checked baggage is 35 kg, therefore
222w + 4 = 35
222w = 35 - 4 = 31
w = 31/222 = 0.1396 kg =139.6 g
Answer:
The equation to determine w is 222w + 4 = 35.
Answer:
630 word
10.5 minute: 10×60+0.5×60=600+30=630 second
60 word 60second
? word 630 second
?=630
Answer:
<h2>|DB| = 6</h2>
Step-by-step explanation:
If ABCD is a rhombus then the diagonals AC and BD are perpendicular and intersect in half.
Let E be the point of intersection of the diagonals.
Therefore:
AE ≅ EC and DE ≅ EB ⇒ |AE| = |EC| and |DE| = |EB|.
DB = DE + EB
|EB| = 3 ⇒ |DB| = 3 + 3 = 6
ABCD it's not a rectangle because in each rectangle diagonals are congruent and intersect in half.
