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3 years ago

Find the student’s error in solving the following inequality.

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

5 0

Hello,
Answer C

When you divide by a negative number the order is invert. (< become >")

Svetradugi [14.3K]3 years ago

4 0

Answer: c. The student should have switched the direction of the inequality sign to get –5> x for a final answer.

Step-by-step explanation:

From the given steps, the last step is done wrong by student.

When we multiply or divide any negative number on vboth sided of the inequality, the sign of inequality reverse its direction .

In the last step student divide the inequality by -5 but didn't switch direction of the inequality sign.

hence, c is the right option "The student should have switched the direction of the inequality sign to get –5> x for a final answer."

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Solve the inequality. Graph the solution - 30 points

nikdorinn [45]

$\\ \rm\Rrightarrow 26+6b\geqslant 2(3b+4)$

$\\ \rm\Rrightarrow 26+6b\geqslant 6b+8$

$\\ \rm\Rrightarrow 6b-6b\geqslant 8-26$

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Hence

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7 0

3 years ago

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My school's enrollment is $506$ after a $10\%$ increase. What was the school's enrollment before the increase? 25 POINTS!!!!!!!!

lana [24]

The school's enrollment before the increase IS $460.

<h3>What are percentages? </h3>

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred. The sign used to represent percentages is %.

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In order to determine the required value, divide the cost of the school enrolment after the increase by 110%(100 + 10).

$506 / 1.10 = $460

To learn more about percentages, please check: brainly.com/question/25764815

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2 years ago

A shopper is standing on level ground 800 feet from the base of a 250 foot tall department store the shopper looks up and sees a

Aleks04 [339]

Answer:

The elevation to the top of the building from the point on the ground where the shopper is standing is = 17.35°

Step-by-step explanation:

From the ΔABC

AB = height of the building = 250 feet

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$\tan \theta = \frac{AB}{BC}$

$\tan \theta = \frac{250}{800}$

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Therefore the elevation to the top of the building from the point on the ground where the shopper is standing is = 17.35°

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4 years ago

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Finger [1]

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3 years ago

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alexandr1967 [171]

I got the answer right, I just took the test: (going from left to right)
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3 years ago

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