Answer:
x = 23
Step-by-step explanation:
180 - 42 = 138
138/6 = 23
x = 23
the ratio of zinc to copper is 3 to 14, that menas that for each 3 grams of zinc there are 14 grams of copper, so we can made a rule of three to find
Answer:
0
Step-by-step explanation:
please look at the picture that I attached and try to understand it
Answer:
yes
Step-by-step explanation:
it should go in a straight line
Every year, the price of the smartphone is the
of the price of the previous year (since we lose the
, we remain with the
).
Since
can be written as
, the price after one year will be

After two years, the price is the
of the price after one year:

And so on: after three years we have

So, the answer is somewhere between three and four years.