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3 years ago

5

Marla solved the inequality below incorrectly. What mistake did she make?

1 answer:

Svetllana [295]3 years ago

7 0

Answer:

D) She should have divided 10 by negative 5 and gotten a -2

Step-by-step explanation:

The question is incomplete. Here is the complete question.

"Marla solved the inequality below incorrectly. What mistake did she make?

-5x - 3.5 < 6.5

-5x < 10

x > 2

a She added 3.5 to both sides when she should have subtracted.

b She should have divided both sides by negative 5 as her first step.

c She should not have flipped the inequality symbol in her answer

d She should have divided 10 by negative 5 and gotten a -2

Given the inequality

-5x - 3.5 < 6.5

Step 1:

We will move -3.5 to the other side of the inequality to have:

-5x < 6.5+3.5

-5x<10

Step 2:

Divide both sides by the coefficient of x which is -5. Note that the inequality sign changes when dividing or multiplying both sides of an inequality with a negative value.

-5x/-5 > 10/-5

x > -2

Based on the calculation, Maria's mistake was that she should have divided 10 by negative 5 and gotten a -2 not 2.

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It takes 4 3/8 cups of cheese,7/8 cups of olives,and 2 5/8 cups of sausage to make a signature pizza. How much cheese is needed

Crank

$43\frac{3}{4}$ cups of cheese is needed to make 10 pizzas.

<u><em>Explanation</em></u>

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