Question

Stuck, please help and give explanation thank you.

Answer 1

the price of Deluxe=D
the price of standard- S

D=S+5
2D+3S=47,5
2*(S+5)+3S=47,5
2S+2*5+3S=47,5
5S+10=47,5
5S=47,5-10
5S=37,5
S=37,5:5
S=7,5 $ the price of standard Chocolates

D=7,5+5=12,5$
D=12,5$