Answer:
X = 45
Step-by-step explanation:
90 + X + A = 180 (angles of a triangle sum to 180)
90 + X + 45 = 180
X = 45
Answer: there are 200 girls in the school.
Step-by-step explanation:
In a school, there is a ratio of 4 boys to 5 girls. The total ratio would be the sum of the proportion of boys and the proportion of girls. Therefore,
Total ratio = 4 + 5 = 9
If there are a total of 450 students, it means that the number of girls in the school would be
Proportion of girls/ total ratio × total number of students. Therefore,
The number of girls is
5/9 × 450 = 200
Answer:
42
Step-by-step explanation:
It changes 42 cents each year
It does not crosses any axises. 3rd case is true. I passes through the point 1, e
Answer:
30=15
Step-by-step explanation:
30=40-30+6-4-27
30=10+2-27
40=12-27
30=-15
