Xian and his cousin both collect stamps. Xian has 60 stamps, and Kai has 68 stamps. The boys recently joined different stamp-collecting clubs. Xian’s club will send him 16 new stamps per month. Kai’s club will send him 12 new stamps per month. After how many months will Xian and Kai have the same number of stamps? How many stamps will each have?

152 stamps

Step-by-step explanation:

After 2 months

92 stamps each

Step-by-step explanation:

difference at first is that kai has 8 more stamps

xians new club gives 4 more each month than kai's

8÷4=2

60+32=92

68+24=92

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.