At a school dance. Juan paid $2.05 for 1 soda and 2 pretzels. Keisha paid $1.85 for 1 pretzel and 2 sodas. What is the cost of 1 pretzel and 1 soda?

Answer:1 pretzel is 0.75$

1 soda is 0.55$

Step-by-step explanation

suppose

soda=x

pretzel=y

according to Juan

x+2y=2.05 ... (1)

according to Keisha

2x+y=1.85 ... (2)

multiply 2 to the 1 no. and do subtraction from 1 no. to 2 no.

2x+4y=4.1

2x+y = 1.85

(-) (-) (-)

3y=2.25

y=2.25/3

y=0.75

place y=0.75 to 1 no

x+2*0.75=2.05

x=2.05-1.5

x=0.55