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s344n2d4d5 [400]
3 years ago
13

What is tally marks?​

Mathematics
2 answers:
balu736 [363]3 years ago
8 0

Answer:

tally mark also called hash marks and they are a unary numeral system

kiruha [24]3 years ago
3 0
Tally marks, also called hash marks, are a unary numeral system. They are a form of numeral used for counting. They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate results need to be erased or discarded. Every fifth mark is drawn across the previous 4 marks, so you can easily see groups of 5

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Three less than a number equals 12
tekilochka [14]

x-3 = 12\\\\\implies x =  12 +3 = 15

4 0
3 years ago
3( m - 1) = 5m +3 - 2m<br> Solve pls
gizmo_the_mogwai [7]

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it's something like 6 or m=6

Step-by-step explanation:

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Marie bought souvenir at the beach that is made up of a square pyramid filled with sand. The base of the pyramid has a side leng
Artemon [7]

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Step-by-step explanation:

all you do is you times 6 by 8

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How many distinct set of three positive integers have a mean of 6, a medium of 7 no mode ?​
Natasha_Volkova [10]

Answer:

3 sets.

1 7 10

2 7 9

3 7 8.

Step-by-step explanation:

The sum must be 18 ( 3*6)  and 7  is the middle number ( the median).

So the first and last numbers must add up to 11  with the first number less than 7.  As there is no mode no number can be repeated.

So one set is 3 7 8    (the first number can't be 4 as the last number would have to be 7)

Others are 2 7 9,

1 7 10.

8 0
3 years ago
X+y=15-2x+5y=-2 solve your systems of solutions and record your answer as an ordered pair
ipn [44]

Answer:

x = 11 and y = 4

Step-by-step explanation:

Given equations are :

x+y=15 ...(1)

-2x+5y=-2 ...(2)

We need to solve the systems of equations.

Multiply equation (1) by 2.

2x+2y=30 ...(3)

Adding equation (2) and (3).

-2x+5y+2x+2y = -2+30

7y = 28

y = 4

Put the value of y in equation (1).

x+4=15

x = 11

So, the solution of the given equations are x = 11 and y = 4.

7 0
3 years ago
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