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True [87]
3 years ago
5

What is operation mean in mathematic meaning?

Mathematics
2 answers:
Elan Coil [88]3 years ago
8 0
Operation mean in mathematics is by comparing numbers. The operations are +,-, divide and multiplying
Anna11 [10]3 years ago
7 0

Check this attachment

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If 1134 bricks are used to build a wall that is 18ft long, how high is the wall?
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Mr. Smith is 81 years older than his grandson, Victor. In 3 years, Mr. Smith will be four times as old as Victor. How old is Vic
puteri [66]
<h3>Answer :- </h3>

  • 24 years

<h3>Solution :- </h3>

  • Let the age of victor be X .
  • and, the age of Mr.Smith be = 81 + x

♧ <em>So, after 3 years = x+81 +3</em>

  • 81 + 3 + x = 4 ( x + 3 )
  • 84 + x = 4x + 12

♧ <em>now grouping the variables and constants together we get,</em>

  • 4x-x=84-12
  • 3x = 72
  • x = 72/3
  • x = 24

♧ <em>Thus, Victor's present age is 24 yrs.</em>

<em>H</em><em>o</em><em>p</em><em>e</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>ya</em><em> </em><em>~</em><em> </em>

4 0
3 years ago
Read 2 more answers
Which equations are true equations? Select all correct answers. Responses 15052=30−42−12 150 over 5 squared equals 30 minus 4 sq
Helen [10]

All the correct answers of the equations using order of operations are;

B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

C. 48 ÷ 8 + 2³ = 5 + 3²

<h3>How to use order of operations?</h3>

The rule used for order of operations is PEMDAS and it states that the order of operation starts with the calculation enclosed in brackets or the parentheses first. Exponents (degrees or square roots) are then operated on, followed by multiplication and division operations, and then addition and subtraction.

Using the PEMDAS rule, the solutions would be as follows:

A. 9² − 7² = 20 ÷ (7 − 2)

81 - 49 = 20 ÷ 5

32 = 4

Thus, this is not true.

B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

56 ÷ 2 − 12 = 22 - 6

28 - 12 = 16

16 = 16

Thus, this is true.

C. 48 ÷ 8 + 2³ = 5 + 3²

6 + 2³ = 5 + 9

6 + 8 = 14

14 = 14

Thus, this is true.

D. 150 ÷ 5² = 30 − 4² − 12

150 ÷ 25 = 30 − 16 − 12

6 = 30 - 28

6 = 2

Thus, this is not true.

Read more about Order of operations at; brainly.com/question/550188

#SPJ1

Complete question is;

Which equations are true equations? Select all correct answers.

A. 9² − 7² = 20 ÷ (7 − 2)

B. 8⋅7 ÷ 2 − 12 = 22 − 2⋅3

C. 48 ÷ 8 + 2³ = 5 + 3²

D. 150 ÷ 5² = 30 − 4² − 12

8 0
2 years ago
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