MATHEMATICS HIGH SCHOOL

In a class test.containing 15 questions 4 marks are given for every correct answer and -2 marks are given for every wrong answer james attempt all the question but only 9 of his answers correct .What is his total score

Answers

Answer 1
Answer:

Answer:

48

Step-by-step explanation:

(9*4) + (6*2)

36 + 12

= 48
Answer 2
Answer:

Step-by-step explanation:

no:questions=15

correct questions =9

marks for correct answers =9×4=36

incorrect answers=6

marks for incorrect answers =(-2)×6=(-12)

full marks =36 - (-12)

=36 + 12

=48

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Consider the following set of equations: Equation C: y = 2x + 8
Equation D: y = 2x + 2

Which of the following best describes the solution to the given set of equations?

No solution
One solution
Two solutions
Infinite solutions

Answers

No solution because both equations have 2x on the same side.

Answer:

No Solution

Step-by-step explanation:

No Solution because they both have the same slopes but different y- intercept.

Hope this helped!

If ΔABC and ΔXYZ are congruent, which of the following statements below is not true?A
Angle B and angle Y are congruent.

B
Angle CBA and angle ZXY are congruent.

C
AB and XY are congruent.

D
AC and XZ are congruent.

Answers

The statement not true is : B. Angle CBA and angle ZXY are congruent.

Step-by-step explanation:

When two triangles are congruent,then each part of the triangle, side/angle is congruent to the corresponding part in the other triangle.Remember that Corresponding Parts of Congruent Triangles are Congruent, thus apply the technique when handling similar questions.

Learn More

Congruent triangles : brainly.com/question/12077512

Keywords: congruent, statement, triangles

#LearnwithBrainly

Solve 2/3 (6x+30)=x+5(x+4)–2x

Answers

expand the left hand side of the equation first. this is easy since two thirds of six is four and two thirds or thirty is twenty.
4x + 20 = x + 5(x+4) - 2x
expand the right hand side :
4x + 20 = x + 5x + 20 -2x

Collect up all the x terms on the right hand side: 4x + 20 = x + 5x - 2x + 20
So the total number of "x" 's on the right hand side is 1 + 5 -2 = 4
4x + 20 = 4x + 20
Hey ! look at that ! you've got the same thing on both sides of the equation ! this means that it doesn't matter what value x is, the equation works for ALL values of x . ( ANSWER)

Need help with a math question

Answers

Answer:

81

Step-by-step explanation:

3 digits ^4 number options

3^4=81

△ABC is similar to △LMN by the ​ AA Similarity Postulate ​. The measure of ∠A is 111º and m∠C=2(m∠M).What is m∠M?

Answers

△ABC is similar to △LMN by the ​ AA Similarity Postulate ​. The measure of ∠A is 111º and m∠C=2(m∠M).

Since the Angle of A is 111 degrees.
Another angle, Angle of C is twice the angle of M.

Angle of A = Angle of C
2 (Angle of M) = Angle of C
2 (Angle of M) = 111
Angle of M = 55.5 degrees

Walking briskly consumes 250 calories in 1 hour. How long would you have to walk briskly to lose 3 pounds?

Answers

Answer:

42 hours

Step-by-step explanation:

1 pound = 3,500

3,500 × 3 = 10,500

1 hour = 250

10,500 ÷ 250 = 42

42 hours
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