B) 88°, 34°, and 58°
Answer:
Step-by-step explanation:
the answer is b
as it needs to add up to 180
The ratio of boys to girls is 4:5. So let 4x be the number of boys and 5x be the number of girls. Then 4x+5x = 9x is the total number of students. Then the fraction of boys in the class is 4x/9x = 4/9.
A B and C are true
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This deals with simplification or other simple results.
The GCF for 84 and 90 is 6.
The factors of 84 are: 1, 2, 3, 4, <u>6</u>, 7, 12, 14, 21, 28, 42, 84
The factors of 90 are: 1, 2, 3, 5, <u>6</u>, 9, 10, 15, 18, 30, 45, 90
Then the greatest common factor is 6.
