Marcie solved the following inequality, and her work is shown below:
−2(x − 5) ≤ 6x + 18
−2x + 10 ≤ 6x + 18
−8x +10 ≤ 18
−8x ≤ 8
x ≤ −1
what mistake did marcie make in solving the inequality?
she subtracted 6x from both sides when she should have added.
she subtracted 10 from both sides when she should have added.
she did not make a mistake.
when dividing by −8, she did not change the direction of the sign.

When dividing an inequality with a negative value , the inequality sign changes direction.

The original Less than or equal to sign should heave been changed to greater than or equal to.

The answer is: When dividing by −8, she did not change the direction of the sign.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)