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2 years ago

I know the answer but I need help doing the equation!!! 10 points!!!! Help!!!!

Mathematics

2 answers:

olga nikolaevna [1]2 years ago

8 0

To solve this, we will use the Exterior Angle of a Triangle Theorem, which states that the exterior angles in a triangle are congruent to the 2 interior remote angles.

Therefore:

17x-1 = 84 + 7x+5.

• The exterior angle = the 2 remote interior angles.

17x-1+1=84+7x+5+1

17x = 84+7x+6

17x-7x = 84+7x-7x+6

10x = 84+6

10x = 90

10x/10 = 90/10

x = 9

Brums [2.3K]2 years ago

3 0

Answer: Here x = 9. This is the correct answer. Hooe it helps

Step-by-step explanation:

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40% of the students in a class are girls and the number of boys is 24 find the total number of students and the number of girls

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Answer:

Girls = 16

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40% of the students are girls, this means 60% of the students are boys.

To find the number of girls, setup a proportion using the percentages and actual number of students in the class. I am going to make the numerator the numbers that go with the girls and the denominator will be the numbers that go with the boys.

Also let's convert the percentages to decimals by moving the decimal two places left.

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