Stephen placed three separate online orders from a store selling headphones, video games, and shoes.
2 video games and 1 pair of headphones cost $220.
1 pair of shoes and 2 headphones cost $280.
1 video game and 1 pair of headphones cost $160.
Which item has the highest cost and how much does it cost?

A. Headphones for $90
B. Shoes for $80
C. Shoes for $120
D. Headphones for $100

yes yes yes yes yes yes yes yes yes

the answer is 31.27mph

d is the answer

step-by-step explanation:

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0