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Maurinko [17]
2 years ago
4

( Melanie has 230 coins in her collection- Number of European and non-European coins)And now has 180 European coins. Write an eq

uation To determine the number of non-European coins, E, If Melanie has t total coins figure/find the Non-European coins and Identify the constant of proportionality. Pls show work thank you:/
Mathematics
2 answers:
katovenus [111]2 years ago
8 0

Total number of coins(including European and non European coins) =230

Number of European coins = 180

Let the number of non European coins be = E

T is the total coins or T =230

The equation to determine non European coins is

E=T-180

Solving this we get E=230-180=50

hence, E = 50


Leokris [45]2 years ago
4 0

Answer:

The amount of Non-Europeans coins is 50, and the constant of proportionality is approximately 0.217

Step-by-step explanation:

Let <u>T be the total of coins, E be the number of European coins, and nE be the number of non-European coins</u>, then

T=E+nE

so, <em>in order to know the amount of non-European coins</em> (nE), we clear nE from the equation

nE=T-E=230 coins-180coins=50coins

Finally, <em>the constant C of proportionality</em> is given by the following ratio

C=\frac{non-European}{Total}=\frac{nE}{T}=\frac{50}{230}\approx0.217

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