Answer:
$33.60
Step-by-step explanation:
Note that "full price" is 1.00($42.00) = $42.00.
"20% discounted price is 0.80($42.00) = $33.60. This is the sale price.
The discount is 0.20($42.00) = $8.40 (but we weren't asked for that).
You mean their sum is 12?
A) x + y = 12
B) x -y = 4 then we add both equations:
2x = 16
x = 8
y = 4
Answer:
$2.40 .60 cent difference
Step-by-step explanation:
nah.. trust
1.
Left side of a graph is a line that passes through points
and
so we can write its equation as:
2.
Right side of a graph is a parabola with vertex
that passes through point
. Its equation:
Substitute
and
to calculate parameter
and we have the equation of parabola:
From 1. and 2. full equation for graph is:
Answer:
They each ran 3.75 miles.
Step-by-step explanation: