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Svetradugi [14.3K]
3 years ago
5

7n+6=42-9. Please help me with this math equation

Mathematics
2 answers:
ycow [4]3 years ago
3 0
The answer is n=5. I worked it out
Brilliant_brown [7]3 years ago
3 0
7n-6 = 42-9
7n-6 = 33
7n = 33-6
7n = 27
n = 27/7
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a rectangular room is 2meters longer than it is wide, and it's perimeter is 24 meters. find the dimension of the room​
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2l + 2(l+2)=24 \\2l +2l+4=24 \\4l=20 \\\boxed{l=5}

Length of the room is 5 m and width is 5 + 2 = 7 m.

Hope this helps.

r3t40

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4 years ago
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Integer for a loss of $13
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viktelen [127]

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3 years ago
If an object moving at 1 mile/hour accelerates 1 mile/hour for every meter it travels, how fast will it be travelling in half of
d1i1m1o1n [39]

Answer:

Speed = 0.0003miles/hr

Step-by-step explanation:

Speed of object = 1 mile/hour

For every meter it travels, its acceleration increases by 1 mile/hour

∆Distance = increase in distance

∆speed = 1 meter

The speed and the distance are constant

Speed = distance/time

Time = distance/speed = 1meter/(1 miles/hr)

Convert meter to miles

1609.34 meters = 1mile

1meter = (1meter × 1mile)/(1609.34 meters)

1 meter = (1/1609.34)miles

Time = distance/speed = (1/1609.34)miles/(1 miles/hr)

Time = (1/1609.34)hr

We are to determine the speed the object would be travelling in half of an hour?

In 1hr, it travels (1/1609.34)miles

In ½hr, it travels = (1/1609.34)(½)hr

Speed = 0.0003miles/hr

It will be travelling 0.0003miles/hr in half of an hour

6 0
3 years ago
C(3) = 4/3x + -4<br><br> solve plsss, i appreciate it
pogonyaev

The equation given is:

c(x) = 4/3x + (-4)


Plug in 3 and solve:

c(3) = 4/3(3) + (-4)

c(3) = 12/3 + (-4)

c(3) = 4 + (-4)


Answer: c(3) = 0


Hope I helped!


-Char

8 0
3 years ago
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