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andriy [413]
3 years ago
12

Simplify using order of operation 18+4×3

Mathematics
2 answers:
Mrac [35]3 years ago
5 0

The order of operation is divided in 4 options:

1st - Breaking dow parenthesis

2nd - Square roots / exponents

3rd - Multiplication / division

4th - Addition / Subtraction


So in your case the expression will look like this:

18 + 4 * 3 =  → we solve the multiplication first

18 + 12 =  → secondly we solve the addition (this is the simplified operation)

30 → final answer


Hope it helped,


BioTeacher101

irga5000 [103]3 years ago
3 0

Here is the equation:

18+4 \times 3

You have to use PEMDAS

\bf Parentheses \\ Exponents \\ Multiplication\\ Division \\ Addition \\ Subtraction

Since multiplication is before addition, first multiply. You need to multiply 4 by 3.

4 \times 3 = 12

Here is your new equation:

18+12

All you need to do is add the two numbers. Add:

18+12=30

That means your answer is 30

<em>If you have any questions, feel free to ask in the comments! :)</em>

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Answer:

6) 15

7)5

8)120 degrees

9)60 degrees

10)9

Step-by-step explanation:

GHIJ is a parallelogram.

Opposite sides of a parallelogram are congruent.

3y - 1 = 2y + 1

3y - 2y = 1 + 1

y = 2

Opposite sides of a parallelogram are congruent.

4x + 3 = x + 12

4x - x = 12 - 3

3x = 9

x = 9/3

x = 3

6)GH = ?

GH = 4x + 3

GH = 4(3) + 3

= 12 + 3

= 15

therefore, GH = 15

7) HI = ?

HI = 2y + 1

= 2(2) + 1

= 4 +1

= 5

therefore, HI = 5

Opposite angles of a parallelogram are equal.

8) m(angle I) = 120 degrees...... (given)

therefore, measure of angle G = measure of angle I

therefore, m(angle G) = 120 degrees

Consecutive angles of a parallelogram are supplementary.

9) m(angle I) + m(angle J) = 180 degrees

120 + m (angle J) = 180

m(angle J) = 180 - 120

= 60 degrees.

The diagonals of a parallelogram bisect each other.

10) JK = 9 .........( given)

JK = HK

therefore, HK = 9

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3 years ago
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