Question

at a school dance, Juan paid $2.05 for 1 drink and 2 cookies. Keisha paid for $1.85 for 1 cookie and 2 drinks. whas is the cost of 1 cookie and 1 drink.

$1.20
$1.25
$1.30
$1.35

Answer 1

@dude :D

Answer 2

Set a system of inequalities
x = drinks
y= cookies

Juan: \(x+2y=2.05\)
Keisha: \(2x+y=1.85\)

You can use any system (Substitution, eliminating)
I will use substitution

\(x+2(1.85-2x)=2.05\)

\(\boxed {x=0.55}\)


Now substitute it back in for y (into either equation)

\(0.55+2y=2.05\)

\(\boxed {y=0.75}\)

Answer 3

To find total (for each), add them up

Answer 4

\(0.55+0.75\)

Answer 5

yeah I did

Answer 6

I got 1.3