Question

Three tennis balls have the same mass. If the total mass of the 3 balls is 6 3/10 grams, what is the mass of 1 ball?(1 point) Responses 10/189 grams Start Fraction 10 over 189 End Fraction grams 2 3/10 grams 2 Start Fraction 3 over 10 End Fraction grams 2 1/10 grams 2 Start Fraction 1 over 10 End Fraction grams 18 9/10 grams

Answer 1

To find the mass of one tennis ball, we can divide the total mass of the three tennis balls by the number of balls.

The total mass of the 3 balls is given as $6\frac{3}{10}$ grams. We can convert this mixed number to an improper fraction:

$$6\frac{3}{10}=\frac{6\times 10+3}{10}=\frac{60+3}{10}=\frac{63}{10}\text{ grams}$$

Now, we divide the total mass by 3 to find the mass of one ball:

$$\text{Mass of one ball}=\frac{\frac{63}{10}}{3}=\frac{63}{10}\times \frac{1}{3}=\frac{63}{30}$$

Now we can simplify $\frac{63}{30}$:

$$\frac{63÷3}{30÷3}=\frac{21}{10}$$

Converting $\frac{21}{10}$ back to a mixed number:

$$\frac{21}{10}=2\frac{1}{10}$$

Thus, the mass of one tennis ball is $2\frac{1}{10}$ grams.

So the answer is:

2 1/10 grams