6 mm
Set up a proportion of 12/9=8/x. Cross multiply and this gives us 12x=72. Now divide both sides by 12 and you get 6.
Answer:
Step-by-step explanation:
4:12= 1:3
Answer:
Step-by-step explanation:
30 ≤ 23 + x
7 ≤ x
Answer: 55% are girls,45% are boys, number of girls is 122% of the boys,number of boys is 81.8%
Step-by-step explanation: percentage of girls = number of girls ÷ total population × 100
= (198/360)× 100 = 55%
Number of boys = 360 -198 = 162
Percentage of boys = (162/360) × 100 = 45%
Percentage of girls to boys = (198/162) × 100 = 122%
Percentage of boys to girls = (162/198) × 100 = 81.8%
