Solve the inequality 2/3x≤5

. Which of the following graphs shows the solution? (1 point)
Responses

A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 5 start fraction 2 over 3 end fraction. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.
Image with alt text: A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 5 start fraction 2 over 3 end fraction. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.

A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 3 start fraction 1 over 3 end fraction. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.
Image with alt text: A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 3 start fraction 1 over 3 end fraction. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.

A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 7.5. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.
Image with alt text: A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 7.5. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.

A number line ranges from negative 10 to 10 with numbers listed in unit increments. A closed point is plotted on the number line at 4 start fraction 1 over 3 end fraction. A leftward arrow is marked on the number line that originates at the closed circle and goes beyond negative 10.

1 answer

To solve the inequality \( \frac{2}{3}x \leq 5 \), we'll first isolate \( x \):

  1. Multiply both sides by \( \frac{3}{2} \) to eliminate the fraction (note that since \( \frac{3}{2} \) is positive, the direction of the inequality does not change):

\[ x \leq 5 \cdot \frac{3}{2} \]

  1. Calculate \( 5 \cdot \frac{3}{2} \):

\[ 5 \cdot \frac{3}{2} = \frac{15}{2} = 7.5 \]

So, the solution to the inequality is:

\[ x \leq 7.5 \]

On a number line, this solution would be represented by a closed point (indicating that 7.5 is included in the solution) at 7.5, with a leftward arrow extending towards negative infinity, since all values less than or equal to 7.5 are included in the solution.

From your options, the graph that correctly represents this solution is:

  • A number line ranges from negative 10 to 10 with a closed point plotted at 7.5, with a leftward arrow that originates at the closed circle and goes beyond negative 10.

This graph visually shows that \( x \) can take any value less than or equal to 7.5.