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jasenka [17]
2 years ago
15

A student says that the solution of 375=x-28 is 347. Explain the student's error and find the correct answer.

Mathematics
2 answers:
Genrish500 [490]2 years ago
7 0

Hi there!

Answer:

<u><em>x=403 and 403=x</em></u>

Step-by-step explanation:

Because a student says the answer is 347 is not the right answer. The final answer should be x=403 and 403=x.

375=x-28

Switch sides.

x-28=375

add by 28 both sides of an equation.

x-28+28=375+28

simplify.

x=403 and 403=x

403-28=375

28+375=403

Hope this helps!

-Charlie

Lera25 [3.4K]2 years ago
6 0

Answer:

x=403

Step-by-step explanation:

In order to solve this equation you have to clear X and to clear X you have to add 28 in both sides of the equation to eliminate the -28 from the side of the x:

375=x-28

375(+28)=x-28+(28)

375+28=x

x=403

The student instead of adding the 28 put them with negative sign making him withdraw from teh 375 instead of adding, that was his mistake.

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Goryan [66]

The values of the angles are; x = 12°, m∠PQS = 71°, m∠PQT = 142° and m∠TQR = 41°

<h3>What are the measure of the each angle?</h3>

The required angles; x, m∠PQS, m∠PQT, and m∠TQR

The given parameters are bisects ∠PQT

m∠SQT = (8·x - 25)°

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m∠SQR = 112°

We have;

m∠PQT = m∠SQT + m∠PQS (Angle addition postulate)

m∠SQT ≅ m∠PQS (Angles formed by angle bisector are congruent)

m∠SQT = m∠PQS  by Definition of congruency

m∠PQT = 2 × m∠SQT

Therefore;

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∴ m∠PQS = m∠SQT = 71°

m∠PQS = 71°

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m∠SQT = 71°

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