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dexar [7]
3 years ago
10

Explain why it does not matter what letter or symbol is used to find and unknown number?

Mathematics
1 answer:
boyakko [2]3 years ago
8 0
It dose not matter what letter or symbol to find the unknown number because you are only using something to represent that number.
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Can I please get help with this I give thanks
gladu [14]
First one :
We divide it into two rectangles (the top one has dimensions 2in*4in)

The area of the top rectangle is 2*4=8 in^2

The second rectangle has dimensions 3*(5-3)=6 in^2
Hence the total area is 8+6=14 square inches

Second one :

We divide it into a rectangle (dimensions 11*17) and a triangle on the top.

The area of the rectangle is 11*17=187 m^2
The rectangle has dimensions 17 (base's length) and 23-11 (height) hence its area is 17*(23-11)/2=102 m^2

Hence the total area is 102+187=289 square meters

6 0
3 years ago
Read 2 more answers
If the perimeter of a rectangle or piece of glass is 26 inches and the length is 4 inches longer than twice the width and what a
cricket20 [7]
2(2w+4+w)=26; 6w+8=26; w=3, l=10

5 0
3 years ago
A driver of a car stopped at a gas station to fill up his gas tank. He looked at his watch, and the time read exactly 3:40 p.m.
mylen [45]

Answer:

2.675

Step-by-step explanation:

3 0
3 years ago
What is the total amount if the percent is 16% and the part is 48?
ahrayia [7]
The amount will be 300
8 0
3 years ago
Calculate the average (arithmetic mean) for the data set (rounded to the nearest tenth
Ugo [173]

The right answer is 19.9

Step-by-step explanation:

Given data set is;

(18, 23, 17, 25, 15, 18, 18, 16, 27, 25, 18, 19)

Sum of terms = 18+23+17+25+15+18+18+16+27+25+18+19 = 239

Number of terms in data set = 12

Average = \frac{Sum\ of\ terms}{Number\ of\ terms}

Average = \frac{239}{12}

Average = 19.91

The average of data set is 19.91

The right answer is 19.9

Keywords: average, addition

Learn more about addition at:

  • brainly.com/question/9729310
  • brainly.com/question/9738996

#LearnwithBrainly

5 0
3 years ago
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