# Kaitlyn bought two pieces of gum and 3 candy bars for $3.25. Riley bought 4 pieces of gum and 1 candy bar for$2.75 at the same store. How much would Tamera pay if she bought 1 piece of gum and 1 candy bar at the same store?

## A. $0.25 B.$0.50 C. $0.75 D.$1.25

D. $1.25 #### Explanation: Let x be the amount of 1 piece of gum and y be amount of 1 candy bar. $\therefore$As per the question we have two equations : $\to$2x + 3y = 3.25 and 4x + y = 2.75 $\therefore$Solving these equations we are gonna get : 4x + y = 2.75 4x + 6y = 6.50 ... [Multiplying the second eq. by 2] $\therefore$Subtracting both the equations we get : -5y = -3.75 5y = 3.75 y = $\frac{3.75}{5}$$\therefore$y = 0.75$
$\to$ 4x + y = 2.75
$\therefore$ 4x + 0.75 =2.75
$\therefore$ 4x = 2.75 - 0.75
$\therefore$ 4x = 2.00
$\therefore$ x = $\frac{2}{4}$ = 0.50$So now as asked x + y = 0.50$ + 0.75$= (0.50 + 0.75)$
= 1.25$Thus Option D. 1.25$ is correct.