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4 years ago

PLEASE HELP ME!!!!!!!!! I'LL MARK YOU BRAINLIEST IF YOU ANSWER THESE CORRECTLY!

Mathematics

2 answers:

bogdanovich [222]4 years ago

7 0

As the angles of the triangle are equal to 180
Therefore,
180=53+39+4+7x
180-96=7x
84=7x
X=12
Part 2
180=5x+6x-5+75
180-70=11x
110=11x
X=10
This is for page 1 questions

Paraphin [41]4 years ago

5 0

Answer:

question 4 ... x = -11

question 5.... x = -7

question 6... x = 12

question 7.... x = 10

Step-by-step explanation:

<h2><u>number 4</u></h2>

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

x + 51 + 60 + 80 = 180

x = 180 - 80 -60-51

<h2><u>number 5</u></h2>

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

remember that a <u>right angle is 90 degrees</u>

45 + 52+x + 90 = 180

x = 180 - 90 -52 -45

<h2><u>number 6</u></h2>

note : the total angle of a triangle is 180 degrees

hence you can solve this by creating an equation

53 + 39+ 4+7x = 180

now make x the subject of the equation

7x = 180 - 53 - 39 - 4

7x = 84

x = 84/7

<h3><u><em>x = 12</em></u></h3><h3 /><h2><u>number 7</u></h2>

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

6x - 5 + 5x + 75 = 180

now make x the subject of the equation

6x +5x = 180 - 75 + 5

11x = 110

x = 110/11

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