Answer:
Carter family = 25 hours
Davis family = 31 hours
Step-by-step explanation:
Let's say the number of hours the Carter family used their sprinkler is x and the number of hours the Davis family used their sprinkler for is y.
So combined:
x + y = 45 hours
and we are also told that:
40x + 15y = 1300 L
So we can do simultaneous equations to solve the problem.
With some rearranging, we can figure out that:
y= 45 - x
and by substituting that into the second equation:
40x + 15 (45 -x) = 40x + 675 - 15x = 1300L
25x = 1300 - 675
25x = 625
x = 25 = hours that the Carter family used their sprinkler
and we can substitute that back into the original equation to find how many hours the Davis family used their sprinkler so:
25 + y = 56
y = 31
The Davis family used their sprinkler for 31 hours whilst the Carter family used their sprinkler for 25 hours.
Answer:
The former number of enrollees was 1423135
Step-by-step explanation:
Current number of enrollments in Health Maintenance Organizations in Illinois in recent year = 2462170
Now, it is found that this number is a result of 42.2% increase from the last year.
So, Previous year the number of enrollments is 42.2% less than the recent number of enrollments
Now, Former number of enrollments = 2462170 - 42.2% of 2462170
= 2462170 - 0.422 × 2462170
= 2462170 - 1039035.74
= 1423134.26 ≈ 1423135
Hence, The former number of enrollees was 1423135
3n^2 sqrt 5n
hope that helped (:
Answer: 3. HAVE AN AMAZING DAY
