Mathematics: Eric has 240 coins in his collection. 11/12 of the coins are pennies. 4/20 of the coins are nickels. the rest of the coin are quarters. how many of the coin are quarter?

322m ;332 mStep-by-step explanation:...

Eric has 240 coins in his collection. 11/12 of - id24011124604532, hunterbrod71

Ответ:

myaj580

15.01.2022

Mathematics

Quarters=60

Step-by-step explanation:

Total coin =240

Pennies $Pennies=\frac{11}{20}\ of\ total\ coins\\\\Nickels=\frac{4}{20}\ of\ total\ coins\\\\Nickels+Pennies=(\frac{11}{20}+\frac{4}{20})\ of\ total\ coins=\frac{3}{4}\ of\ total\ coins\\\\Quarters=[1-(Nickels+Pennies)]\ of\ total\ coins=[1-\frac{3}{4}]\ of\ total\ coins=\frac{1}{4}\ of\ total\ coins\\\\Quarters=\frac{1}{4}\times 240=60$

Note: Here Pennies are taken $\frac{11}{20}$ instead of $\frac{11}{12}$ as in that case the information given will be irrelevant.

$\frac{11}{12}$ of 240=220

$\frac{4}{20}$ of 240=48

220+48>240

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Eric has 240 coins in his collection. 11/12 of the coins are pennies. 4/20 of the coins are nickels. the rest of the coin are quarters. how many of the coin are quarter?

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