Answer:
5.3
Step-by-step explanation:
1.8x = 9.4
x = 5.3
http://www.purplemath.com/modules/specfact.htm
Answer:
1 y=3x 2 y=38x 3 y=202x 4 y=2x 5 y=16x
Step-by-step explanation:
Answer:
B) y = 3
Step-by-step explanation:
x = -1 is a vertical line. We want a line that is perpendicular, so it must be a horizontal line. Horizontal lines are in the form y=
The point it goes through is (2,3) so it goes through the y coordinate y=3
Therefore the line must be y=3
Answer:
The total number of albums sold on the first day=34
Step-by-step explanation:
Derive expressions for the number of albums sold
each day;
Let;
the total number of albums sold on the first day=x
the total number of albums sold on the second day=y
but,
total number of albums sold on the second day is twice the total number of albums sold on the first day, therefor=, y=2×x= 2 x
The total number of albums sold for the two days can be expressed as;
Total sales=number sold on the first day+number sold on second day
where;
Total sales=102
number sold on the first day=x
number sold on second day= 2 x
replacing;
(x+2 x)=102
3 x=102
x=102/3
x=34
The total number of albums sold on the first day=34