Answer:
Just use algebra calculator
Step-by-step explanation:
Answer:
I would choose a coin from the case containing half gold coins and half silver coins, because if you get a gold coin then you are going to know the chest only contains cold coins. From this we can deduce that the chest marked silver coins is really the 50/50, and the chest marked gold is really silver. Step-by-step explanation:
3 x + 17 w - 18 is the answer
Answer:
140
Step-by-step explanation:
x + y + z=70 + 40 + 30
70+ 40 +30=140