The two angles together form a straight angle, i.e. an angle of 180 degrees. This means that
Sum like terms:
Subtract 27 from both sides:
Divide both sides by 9:
I need help, along with an explanation, for this question.
1 answer:
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There are 80 children. 45 of them are girls. The amount of boys is equal to:
That means there are 45 girls and 35 boys.
The ratio of boys to girls is:
Simplify:
Your answer is 7:9