Steps:
1. Do 28-12= 16 girls
2. Your ratio is 12:16
3. Your answer is B. 3/4
4. This correct because
12 divided by 4 is 3
16 divided by 4 is 4
5. Your answer is 3/4
Answer:
16 minutes
Step-by-step explanation:
If it takes 63 minutes to paint 9 walls then it means for every wall, it takes 63/9=7 minutes
Since it is 4 people working for 7 mins, the individual rate is 4/7 minutes per person
When we have 7 people, then the number minutes they take will be 7*4/7=4 minutes per wall
4 min per wall for 4 walls then total time will be 4*4=16 minutes
Answer:
3, 6, 12, 15
Step-by-step explanation:
3/12= 4
3/9= 3
Answer:
It is 23
Step-by-step explanation:
BC= FE
(x-4)=19
Therefore x= 23
