D'(-3,-4)
E'(-3,-10)
F'(3,-6)
Answer:
€445.5
Step-by-step explanation:
First we calculate the increase percentage and the increase.
Increase = 450 + (10%*450)
Now we must calculate the percentage of the increase.
Increase percentage = 10% of €450 = 450*0.1 = 45
Increase = 450 + 45 = €495
Since the decrease happens to the <em>new </em>number, the decrease and the decrease percentage <em>both </em>must be to the new changed number, which is 495
Decrease = 495 - (10%*495)
Again we must calculate the percentage of the decrease.
Decrease percentage = 10%*495 = 0.1*495 = 49.5
Decrease = 495 - 49.5 = 445.5
So, the value of Erika's ski chalet after the two changes = €445.5
Answer:
-4.416 repeating
Step-by-step explanation:
X=first week
y=second week
z=third week
t=fourth week
18 more one 2nd week than 1st
x+18=y
x=y-18
3rd week, 4 less than 2 times as second
z=2y-4
4th week, 92
ttal=382
x+y+z+t=382
sub waht we know
x=y-18
y=y
z=2y-4
t=92
y-18+y+2y-4+92=382
conbine line terms
4y+70=382
minus 70 boht sides
4y=312
divide both sides by 4
y=78
78 customers
for equation read my answer slowly
