Apair of pants costs twice as much as a shirt. the total cost of 1 pair of pants and 1 shirt is $18. if s represents the cost of 1 shirt, which equation could you use to find the cost of 1 shirt?

For this case we propose a system of equations:

p: Variable representing the cost of a pair of pants

s: Variable representing the cost of a shirt

A pair of pants costs twice as much as a shirt, means:

The total cost of 1 pair of pants and 1 shirt is $ 18:

We substitute the first equation in the second:

The following equation can be used:

its 4 because 2 times 2 is 4, if you double the number two you get four

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )