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kvasek [131]
3 years ago
14

I need help with number 12!!

Mathematics
1 answer:
elixir [45]3 years ago
6 0

Answer:

(4x + 2y)mi

Step-by-step explanation:

Check attachment

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A househusband is cooking beef stew for his family in a pan that is (a) uncovered, (b) covered with a light lid, and (c) covered
raketka [301]

Answer:

Cooking will be shortest when the househusband covers the beef stew with the heavy lid.

Step-by-step explanation:

The explanation for this is that water boils at 100°C at normal atmospheric pressure & it remains at that temperature until all the water evaporates as steam; the temperature can then go higher in steam form.

So, if he leaves the pan uncovered the pressure above the beef stew will be the atmospheric pressure and the temperature of the stew will not pass the 100°C mark and the food cooks at 100°C.

If he places a light lid on top, the pressure will build up & the temperature at which water remains liquid is a bit higher, but eventually the steam will push the lid to escape thereby releasing pressure & reducing the temperature.

If he puts a heavy lid on the pan the pressure can build up the highest and the temperature of the water in the stew will stay the highest ensuring the fastest cooking.

Basically, the heavier the lid, greater the pressure in the pan. As the pressure gets greater, the saturation temperature at which water starts boiling will be higher. And higher boiling temperatures mean shorter cooking times.

8 0
3 years ago
What are the answers to ther two questions??
Vlad1618 [11]
the answer is the third option, starting with degree 11.
6 0
2 years ago
Read 2 more answers
Please help answer correctly !!!!!!!!! Will mark Brianliest !!!!!!!!! URGENT
krek1111 [17]

Answer:

5 00000

Step-by-step explanation:

bc it just is lolllllll

7 0
3 years ago
VERY IMPORTANT NEED HELP ASAP<br><br> Is cereal... soup?
Snezhnost [94]

Answer: NO

Step-by-step explanation:

3 0
3 years ago
Simplify 7(B + 3) + 2B.
motikmotik

Answer:


Step-by-step explanation:

7(B + 3) + 2B

7B + 21 + 2B

7B + 2B + 21

9B + 21



4 0
3 years ago
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