# At the bank, brent exchanges $50 in bills for 50 one-dollar coins. the total mass of the coins is 405 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

## This Post Has 8 Comments

1. granniejo says:

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

2. linsey9201 says:

The mass of each coin will be 8.1

3. Atromity says:

8 as you round up 405 to 400 and divide by 50 and get 8

4. michibabiee says:

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

$50*y = 405*1$

$50\:y = 405$

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

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

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

_____________________________

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

5. chandlern says:

If he has 50 evenly weighted coins and combined their total weight is 405g. Then to find the weight per coin we must divide the total weight by the amount of coins.

6. alyssamiller401 says:

8.1 grams

Step-by-step explanation:

7. Aggie4216 says:

About 8 grams because 405 is rounded to 400 and 400 divided by 50 equals 8 grams.

8. vsuescun10 says:

\$50 dollars in one-dollar coins = 405 grams

simply divide 405 grams by 50 coins which equals 8.1 grams