Respuesta :
Answer:
Let x represents the price of the T-shirts and y represents the price of a pair of jeans
As per the statement:-
James bought two T-shirts and one pair of jeans at an online store and paid $40, not including taxes, for his purchase.
⇒[tex]2x+y = 40[/tex] .....[1]
It is also given that:
A month later, the same store sold the T-shirts and jeans at a 50% discount from their original prices.
Discount = 50%
Now, the price becomes:
Price of t-shirt = [tex]\frac{x}{2}[/tex] and
Price of a pair of jeans = [tex]\frac{y}{2}[/tex]
Further:
James bought two T-shirts and five pairs of jeans for $60, not including taxes.
⇒[tex]2(\frac{x}{2})+5(\frac{y}{2}) = 60[/tex]
⇒[tex]2x+5y = 120[/tex] .....[2]
Subtract equation [1] from [2] we get;
[tex]4y = 80[/tex]
Divide both sides by 4 we have;
y = $ 20
Substitute this value of y in [1] we have;
2x+20 = 40
Subtract 20 from both sides we have;
2x = 20
Divide both sides by 2 we have;
x =$ 10
Therefore,the price of a T-shirt is $ 10 and the price of a pair of jeans is $ 20