5[3(-90)-45]+5

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baxthum8's profile pic

baxthum8 | High School Teacher | (Level 3) Associate Educator

Posted on

`5[3(-90)-45]+5`

Follow order of operations.  Therefore we must compute parentheses first.

`5[-270-45]+5`

`5[-315] + 5`

Now mulitply 5 and -315

`-1575 + 5`

`-1570`

The solution is -1570.

valentin68's profile pic

valentin68 | College Teacher | (Level 3) Associate Educator

Posted on

`5*[3*(-90)-45]+5 =5*[-270-45]+5 =5*(-315)+5 =-1575+5 =-1570`

When computing the above expression we need is to take into account the order of operations unless otherwise specified by the presence of pharantesis. As a general rule, in the same brackets, multiplication (and division) is done first then addition and substraction.

Thus first step is to compute the value of the expression into the square bracket `[3*(-90)-45]`

by computing the result of multiplication: `3*(-90) =-270`

and then the result of substraction: `-270-45 =-315`

Finally, to arrive at the result, we evaluate again first the result of mutiplication of the value of the square bracket `(-315)` with `5` :

`5*(-315) =-1575`

and then we add `5` :

`-1575+5 =-1570`

Therefore the answer is `5[3*(-90)-45]+5 =-1570`

sid-sarfraz's profile pic

sid-sarfraz | Student, Graduate | (Level 2) Salutatorian

Posted on

Question:-

5[3(-90)-45]+5

SOLUTION:-

In order to solve this question we will follow the order of PEMDAS which is,

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

OR

We will follow the order of BODMAS, which is;

Bracket Opening with

Division

Multiplication

Addition and 

Subtraction

Now returning to the problem;

5[3(-90)-45]+5

5 [3 (-90) -45] + 5

According to the order of operations, we will open the round brackets;

5 [-270 - 45] + 5

Now solve inside the square brackets;

5 [-315] + 5

Now open the square brackets and for that we will multiply 5 with the value inside the bracket;

-1575 + 5

-1570 

Hence Solved! The Answer is -1570.

malkaam's profile pic

malkaam | Student, Undergraduate | (Level 1) Valedictorian

Posted on

5 [ 3 ( -90 ) - 45 ] + 5

This can be simplified with the help of order of operations (BODMAS / PEMDAS),
 
5 [ 3 ( -90 ) - 45 ] + 5
 
First remove the circle brackets
 
5 [ - 270 - 45 ] + 5
 
Now solve inside the square brackets
 
5 [ -315 ] + 5
 
Remove square brackets
 
- 1575 + 5
 
Add or subtract
 
-1570 Answer.
 
acompanioninthetardis's profile pic

acompanioninthetardis | Student, Undergraduate | (Level 1) Valedictorian

Posted on

5[3(-90)-45]+5

multiply -90 by 3 giving you -270

so

5[-270-45]+5

simplify

5[-315]+5

multiply by 5

then add 5 

= -1570

zumba96's profile pic

zumba96 | Student, Grade 11 | (Level 3) Valedictorian

Posted on

5[3(-90)-45]+5 

Use PEMDAS

5[(-270-45)]+5

5[(-315)]+5

-1570

jess1999's profile pic

jess1999 | Student, Grade 9 | (Level 1) Valedictorian

Posted on

5[3(-90)-45]+5

To solve this equation, remember to use the order of PEMDAS

Parentheses

Exponents

Multipication

Division

Addition

Subtraction

By following PEMDAS do what is inside the parentheses first. Which is multiplying 3 and -90

By doing that the equation should look like

5 ( -270 - 45 ) + 5 Now subtract what is inside the parenthesis

By subtracting, your equation should look like

5 ( -315 ) + 5  Now multiply 5 and -315

By multiplying, your equation should look like

-1575 + 5 Lastly, just add

by adding, you should get

-1570 = your answer

nisarg's profile pic

nisarg | Student, Grade 11 | (Level 1) Valedictorian

Posted on

5[3(-90)-45]+5

5(-270-45)+5           multiply

5(-315)+5                subtract 45

-1575+5                   multiply by 5

-1570                     add 5

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