Question

Parul attempted to solve an inequality but made one or more errors. Her work and the graph she drew are shown below.

Negative 5 x minus 3.5 greater-than 6.5. Negative 5 x greater-than 10. x greater-than negative 50.

A number line going from negative 110 to positive 10. A closed circle is at negative 50. Everything to the right of the circle is shaded.

What errors did Parul make? Select three options.

Answer 1

She should divide both sides by -5 while she multiplied by -5 on other side

and she also did not change the > symbol to a < symbol

Step-by-step explanation:

We are given

-5x - 3.5 > 6.5

Since, we have to solve for x

so, we will isolate x on anyone side

step-1:

Add both sides by 3.5

-5x - 3.5 + 3.5 > 6.5 + 3.5

-5x + 10

step-2:

Divide both sides by -5

we know that whenever we divide both sides by negative sign , it's inequality gets revered

so, we get

-5x/-5 < -50/-5

we get

x < 10

so,

She should divide both sides by -5 while she multiplied by -5 on other side and she also did not change the > symbol to a < symbol

Answer 2

3, 4, 5

Explanation: