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Free_Kalibri [48]
3 years ago
10

At the bank, Brent exchanges $50 in bills for 50 one-dollar coins. The total mass of the coins is 405 grams. ESTIMATE the mass o

f 1 one-dollar coin
Mathematics
2 answers:
Ksivusya [100]3 years ago
5 0

Hello!

At the bank, Brent exchanges $50 in bills for 50 one-dollar coins. The total mass of the coins is 405 grams. ESTIMATE the mass of 1 one-dollar coin

Data:  

$50 dollars in bills → 50 coins of one dollar  

Estimate the mass of one dollar coin

Solving:  

50 coins → 405 grams

1 coin → y

\dfrac{50}{1} = \dfrac{405}{y}

The rule of three

50*y = 405*1

50\:y = 405

y = \dfrac{405}{50}

\boxed{\boxed{y = 8.1}}\end{array}}

Answer:

\boxed{\boxed{\boxed{x \approx 8\:grams/coin}}}\qquad\checkmark

_____________________________

I Hope this helps, greetings ... Dexteright02! =)

Anarel [89]3 years ago
4 0
To find the answer, you should divide 405 by 50 to find the mass of one coin. The formula should look like this:
\frac{405}{50}
= 8.1
The exact mass is 8.1 grams, but because you want an estimate, the answer should be
About 8 grams for the mass of 1 one-dollar coin
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