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igor_vitrenko [27]
3 years ago
6

A bathtub contains 20 gallons of water. After the drain is opened, there are 14 gallons of water remaining after 30 seconds. Usi

ng this information, how can you describe the rate of change in the amount of water remaining in the tub per second?
Mathematics
1 answer:
Juliette [100K]3 years ago
8 0
6 gallons are lost every 30 second so .2 gallons are lost every second
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Two numbers whose difference is 8 add up to 50. What is the smaller of these two numbers?
olga55 [171]

Answer:

the smaller of the numbers is 21

Step-by-step explanation:

21+29=50

6 0
3 years ago
A catering service offers 4 appetizers, 9 main courses, and 7 desserts. A customer is to select 3 appetizers, 2 main courses, an
never [62]

Answer:

In 5040 ways.

Step-by-step explanation:

To solve this problem we will use combination without repetition which means:

C ( n k) = (n₁ k₁) (n₂ k₂) (n₃ k₃) = (4 3)  (9 2)  (7 3) =

(4 · 3 · 2 / 3 · 2 · 1) (9 · 8 / 2 · 1) (7 · 6 · 5 / 3 · 2 · 1) = 4 · 36 · 35 = 5040

It can be done in 5040 ways.

God with you!!!

6 0
3 years ago
Hey guys
djyliett [7]

Answer:

do u still need help with this

3 0
3 years ago
2560 round to the nearest thousand
malfutka [58]
3,000

whenever a number is 500 or over, you round it to the next thousand

hope this helps! :)
6 0
3 years ago
Read 2 more answers
Help ASAP!!! Thank you!!
Ira Lisetskai [31]

Answer:

20) 8 years

21) Tori could paint the room alone for 3 hours, Sydney could paint the room alone for 5 hours.

Step-by-step explanation:

A = P ( 1 + r/n ) ^ nt.

8000 = 5000 ( 1 + 6%/4) ^ 4t

8000 = 5000 ( 1 + 0.06/4) ^4t

8000 = 5000 ( 1 + 0.015 ) ^ 4t

8000 = 5000 ( 1.015 ) ^ 4t

8000 / 5000 = ( 4.06 / 4 ) ^ 4t

8/5 = ( 203/200 ) ^ 4t

b = aᶜ ⇔ logₐb = c

7 0
3 years ago
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