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4 years ago

I need help with finding the correct way of doing the order of operations.

Mathematics

2 answers:

igor_vitrenko [27]4 years ago

8 0

I hope this helps you

6+4.10-5

6+40-5

46-5

41

Alex4 years ago

7 0

Here's some help:

Parentheses First
Exponents Second
Multiplication and Division Third
Addition and Subtraction Fourth.

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What is 26.17 in word form

stellarik [79]

26.17 is twenty-six and seventeen hundredths.

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3 years ago

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Simplify: 4 square root of 2 plus square root of 18 minus square root of 9

Ket [755]

I hope this helps you

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3 years ago

Solve the equation. Round the answer to the nearest tenth. 5*6^3n=20

solniwko [45]

Step-by-step explanation:

5×6'3n=20

30'3n=20

3n=20-30

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3 years ago

Solve the system: 2/x - 3/y =-5; 4/x + 6\y =14

sertanlavr [38]

The solution is $x = 2 \text{ and } y = \frac{1}{2}$

Solution:

Let us assume,

$a = \frac{1}{x}\\\\b = \frac{1}{y}$

Given system of equations are:

$\frac{2}{x} - \frac{3}{y} = -5$

$\frac{4}{x} + \frac{6}{y} = 14$

Rewrite the equation using "a" and "b"

2a - 3b = -5 ------------ eqn 1

4a + 6b = 14 -------------- eqn 2

Let us solve eqn 1 and eqn 2

Multiply eqn 1 by 2

2(2a - 3b = -5)

4a - 6b = -10 ------------- eqn 3

Add eqn 2 and eqn 3

4a + 6b = 14

4a - 6b = -10

( - ) --------------------

8a = 4

$a = \frac{4}{8}\\\\a = \frac{1}{2}$

Substitute a = 1/2 in eqn 1

$2(\frac{1}{2}) -3b = -5\\\\1 - 3b = -5\\\\3b = 6\\\\b = 2$

Now let us go back to our assumed values

Substitute a = 1/2 in assumed values

$a = \frac{1}{x}\\\\\frac{1}{2} = \frac{1}{x}\\\\x = 2$

Substitute b = 2 in assumed value

$b = \frac{1}{y}\\\\2 = \frac{1}{y}\\\\y = \frac{1}{2}$

Thus the solution is $x = 2 \text{ and } y = \frac{1}{2}$

3 0

3 years ago

If x = −3, which number line shows the value of |x|? (5 points)

Arada [10]

Can’t see your answer choices but the absolute value of -3 is 3 so I would say 3 is your answer

3 0

3 years ago