Respuesta :

Variables

S = snickers

R = reece

Equations

[tex]\begin{gathered} S+2R=737 \\ 2S+R=778 \end{gathered}[/tex]

Then, we solve the system of equations:

[tex]\begin{gathered} S+2R-2R=737-2R \\ S=737-2R \end{gathered}[/tex]

Substitute S:

[tex]2\left(737-2R\right)+R=778[/tex]

Simplify:

[tex]\begin{gathered} 1474-4R+R=778 \\ 1474-3R=778 \end{gathered}[/tex]

Solve for R:

[tex]\begin{gathered} 1474-3R-1474=778-1474 \\ -3R=-696 \\ \frac{-3R}{-3}=\frac{-696}{-3} \\ R=232 \end{gathered}[/tex]

Substitute R = 232 in S:

[tex]S=737-2(232)=737-464=273[/tex]

Answer:

Snickers bar: 273 calories

Reese's Peanut Butter Cup: 232 calories