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jeka57 [31]
3 years ago
5

What is m in the simultaneous equation M -n=1 M+n=3

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
8 0
The simultaneous equations is missing +8
Nady [450]3 years ago
6 0

Answer:

m is 2

Step-by-step explanation:

If you add the two equations together you get

2m=4

m=2

Plug this value in for m to solve for n

2-n=1

-n= -1

n=1

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A particular dam contains approximately 1,900,000,000,000 cubic feet of water. for a week long spike flood, the dam released at
Fantom [35]

Answer:

a) How much water was released during the flood?

14878080000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

0.78%

Step-by-step explanation:

a) How much water was released during the flood?

The first step would be to find out how many seconds are in a week

60 seconds = 1 minute

60 minutes = 1 hour

24 hours = 1 day

7 days = 1 week

Hence, the number of seconds in a week =

1 week × (7 days/1 week)× (24 hours/1 day )×( 60 minutes/1 hour) ×( 60 seconds/1 minute)

= 604800 seconds

Therefore, the quantity of water released per week =

604800 seconds × 24,600 cubic feet per second

= 14,878,080,000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

This is calculated as quantity released during the week ÷ Quantity of water in the dam × 100%

Quantity of water released during the flood in a week = 14,878,080,000 cubic feet

Quantity of water in the dam= 1,900,000,000,000 cubic feet of water

Percentage of the dam released during the flood =

14,878,080,000 cubic feet ÷ 1,900,000,000,000 × 100

= 0.7830568421%

Approximately = 0.78%

7 0
3 years ago
I need help please this is quite hard for me
creativ13 [48]
Use photomath because it is very helpful bro
4 0
3 years ago
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