Answer:
4200 Belgian francs
Step-by-step explanation:
Given that exchange rate is <em>140 Belgian francs to 4 U.S. Dollars.</em>
which means, for 4 U.S. Dollars in exchange we get 140 Belgian francs.
Therefore, for each U.S. dollar, we get = 35 Belgian francs.
Now we have 120 U.S. dollars, so we get
<em> = Belgian francs.</em>
Thus for 120 U.S. Dollars we get 4200 Belgian francs.
Let Billy have x common cards, and y premium cards:
(i) Billi has 124 cards:
x+y=124
(ii) the total value of the cards is 81.50$:
0.5x $ + 1.00*y $= 81.50 $, so
0.5x+y=81.5
we can write y=81.5-0.5x and substitute in (i):
x+y=124
x+(81.5-0.5x )=124
x+81.5-0.5x=124
x-0.5x=124-81.5
0.5x=42.5
x=42.5/0.5=85
y=124-85=39
Answer: Billy has 85 common cards and 39 premium cards
The landmarks are 28,17,78 hipe this heps
Answer:
sure :) what are the questions?
Step-by-step explanation:
Answer:
n=31.5
Step-by-step explanation:
The given question is:
Cross multiply to get:
Expand the parenthesis:
Group similar terms:
Combine the like terms
Divide both sides by 4
n=31.5