Question

*22. find the unknown number
\\(\frac{2}{3} + n = 1\\)

answer:

*24. how much money is \\(\frac{3}{5}\\) of $30?

answer:

Explanation:

Problem 22:

Step1: Isolate the variable \( n \)

To find \( n \) in the equation \( \frac{2}{3} + n = 1 \), we subtract \( \frac{2}{3} \) from both sides.

$$ n = 1 - \frac{2}{3} $$

Step2: Compute the result

Convert \( 1 \) to a fraction with denominator \( 3 \), so \( 1=\frac{3}{3} \). Then subtract:

$$ n=\frac{3}{3}-\frac{2}{3}=\frac{1}{3} $$

Step1: Understand the operation

To find \( \frac{3}{5} \) of \( \$30 \), we multiply \( 30 \) by \( \frac{3}{5} \).

$$ \frac{3}{5} \times 30 $$

Step2: Perform the multiplication

Simplify \( 30 \) and \( 5 \) first: \( 30\div5 = 6 \). Then multiply by \( 3 \):

$$ 3\times6 = 18 $$

Answer:

\( \frac{1}{3} \)

Problem 24: