Solve the numerical expression

Mathematics

1 answer:

joja [24]3 years ago

5 0

Answer:

Step-by-step explanation:

Using curved parentheses (not square brackets) and * for multiplication and / or ÷ for division, a Google or Bing search box will evaluate such expressions for you according to the Order of Operations.

_____

2[(14 -3) + (4 x 4 x 4) /4] - 2.5 x 12

= 2((11) + 64/4) - 30 . . . . . evaluate inside inner parentheses, to final multiplication

= 2(11 +16) - 30 . . . . . division before addition

= 2·27 -30 . . . . add inside parentheses

= 54 -30 . . . . . .multiplication before addition

= 24

You might be interested in

Solve the system <br> 5x+3y=-9 &- 2x+y=8

lianna [129]

5x+3y=-9
-2x+y=8

The first step is the trickery (and quite frankly, hardest to explain) part. You need to multiply one equation by a number that will create one variable to be the negative version of the other...(Confusing, right? Don't worry, I'll show you)

We are going to solve for X first.

We will multiply the second equation by -3
5x+3y=-9
-3(-2x+y)=(-3)8

Now simplify:
5x+3y= -9
6x-3y= -24

Now combine the two equations (add them together)
11x= -33
Divide by 11
X=-3

Now plug X in to one of the first equations:
5(-3)+3y= -9
-15+3y =-9
3Y= 6
Y= 2

So your final answer is:
x= -3
Y= 2

Hope this helps!

3 0

4 years ago

Read 2 more answers

How many days are there in a month? it is measured in the _____.?

andriy [413]

30 days in the month.

8 0

3 years ago

Which two movements will show a positive movement?

fiasKO [112]

Answer:
Right and up

3 0