Answer:
96 ways
Step-by-step explanation:
Let´s call flags of countries from Africa as A₁, A₂, A₃, A₄, and from Europe as E₁, E₂, E₃ and E₄
We have to display the flags always beginning with one flag from Africa let´s take A₁
For that flag, we have 4! possibilities Then 4! is:
4*3*2*1 = 24
As we have 4 different Flags from Africa, we will have
4*24 = 96 possibilities
Answer:
Step-by-step explanation:
y = 2x
when x = 1
y = 2(1).....y = 2........so when x = 1, y = 2
when x = 2
y = 2(2)....y = 4 ......so when x = 2, y = 4
when x = 3
y = 2(3)....y = 6.......when x = 3, y = 6
when x = 4
y = 2(4).....y = 8.....when x = 4, y = 8
============================
y = 4x - 1
when x = -4
y = 4(-4) - 1.....y = -17.....so when x = -4, y = -17
when x= -3
y = 4(-3)- 1..... y = -13....so when x = -3, y = -13
when x = -2
y = 4(-2) - 1.....y = -9.....so when x = -2, y = -9
when x = -1
y = 4(-1) - 1....y = -5.....so when x = -1, y = -5
you can make the tables from this info...
your basically just subbing in ur value of x into the equation to find ur value of y
9514 1404 393
Answer:
Step-by-step explanation:
Consecutive interior angles are supplementary:
(6x +6)° +(3x -15)° = 180°
9x -9 = 180 . . . . . . . . . . . . . . simplify, divide by °
x -1 = 20 . . . . . . . . . . . . divide by 9
x = 21
__
Angles of a linear pair are supplementary:
(3x -15)° +(y +18)° = 180°
3(21) -15 + y + 18 = 180 . . . . substitute for x, divide by °
y = 114 . . . . . . . . . . . . . . . . . . subtract 66
Answer:
Step-by-step explanation:
<em>Hey there!</em>
<em />
Well to find the solution the the given system,
3y - 2x = -9
y = -2x + 5
So to find x lets plug in -2x + 5 for y in 3y - 2x = -9.
3(-2x + 5) - 2x = -9
Distribute
-6x + 15 - 2x = -9
-8x + 15 = -9
-15 to both sides
-8x = -24
Divide -8 to both sides
<u>x = 3</u>
<u />
Now that we have x which is 3, we can plug in 3 for x in y = -2x + 5.
y = -2(3) + 5
y = -6 + 5
<u>y = -1</u>
<u><em /></u>
So the solution is (3,-1).
<em />
<em>Hope this helps :)</em>
Answer:
21.5
Step-by-step explanation:
