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yarga [219]
3 years ago
12

What symbol in the above example stands for the unknown number?​

Mathematics
1 answer:
noname [10]3 years ago
8 0

Answer:

n stands for the unknown number

Step-by-step explanation:

It's the only variable in the equations, so it is the only one that can stand for any unknown.

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Five times my age 4 years ago is the same as 3 times my age in 2 years." How old is Elmo now?
zheka24 [161]

Answer:

elmo is 3 right now

Step-by-step explanation:

5x -4 = 3x+2

2x= 6

x= 3

7 0
3 years ago
Read 2 more answers
Find an expression which represents the difference when (-4x – 3y) is subtracted
zimovet [89]
-4x-3y+2x+10y
you can add like terms here
5 0
3 years ago
The Foley Products Company has designed a new blend of concrete they believe will be twice as strong as their current high quali
Hitman42 [59]

Answer:

All of the batches of the new blend of concrete made at their plant in a particular week.

Step-by-step explanation:

The population refers to all the subjects or data which which meets the condition or requirement of a certain experiment or research. This means that all the set of similar items or subjects which is of interest in a certain study is the population. In the scenario above, the population will be the set of all the new blend concrete which are made in the plant within a certain week. Thereafter, if a sample is required it will be drawn from these set of data or observation.

8 0
3 years ago
A bus has velocity 20 m/s towards east and another bus has velocity 15 m/s in west direction. If they start to move from a point
Mashutka [201]

Answer:

<em>The first bus has covered 2,400 m and the second bus has covered 1,800 m. They are separated by 4,200 m</em>

Step-by-step explanation:

<u>Constant Velocity Motion</u>

A bun has a velocity of 20 m/s towards the east. It means it travels 20 meters each second in that direction. Assuming the east direction is positive, the distance traveled by this bus can be calculated as follows:

X1=20*t

Where t is the time in seconds.

Similarly, the distance traveled by the second bus towards the west is:

X2=-15*t

Note the negative sign because the direction points at the negative reference.

After 2 minutes = 120 seconds have passed, the distance of each bus is

X1= 20*120=2,400 m

X2=-15*120 = 1,800 m

They are separated by 2,400-(-1,800) = 4,200 m

The first bus has covered 2,400 m and the second bus has covered 1,800 m. They are separated by 4,200 m

6 0
3 years ago
Write an explicit formula for the sequence 7, 2, –3, –8, –13, find the 14th term
Ilia_Sergeevich [38]

The 14th term is equal to -44.

y = 12 - 5x

The sequence can be represented by this function.

Each term is being subtracted by 5.

Using this function we can find the 14th time.


y = 12 - 5(14)

y = 12 - 56

y = -44


6 0
3 years ago
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