2 answers:
Answer:
x = 3
Step-by-step explanation:
The external angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠TRQ is an external angle and ∠RTS, ∠RST are interior angles, hence
45x = 25x + 57 + x
45x = 26x + 57 ( subtract 26x from both sides )
19x = 57 ( divide both sides by 19 )
x = 3
<u>Answer:</u>
x = 3
<u>Step-by-step explanation:</u>
We are given expression for measure of angles of two corners of a triangle, while for the third corner, we know the exterior angle.
We know that the sum of all three angles of a triangle is 180°.
So we can write it as:




x = 3
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Answer:
n/2 - 3 = 10 represents this situation
Step-by-step explanation:
Let the number be n. Then:
n/2 - 3 = 10 represents this situation.
3x-8+6x=7
9x-8=7
9x=15
x=9/15
x=3/5
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Answer:
The word "of" refers to multiplication.
Step-by-step explanation:
Multiplication is what to do in all word problems when we see the word "of"