Question

3.

(1 pt)
What is the value of the expression?

12.4 + (–2 + 1.6)

A.
11

B.
12

C.
15

D.
16

Answer 1

@k-nowhere

Answer 2

Okay, so we need to use PEMDAS in order from top to bottom.

P-arenthesis
E-xponents
M-ultiplcation
D-ivision
A-ddition
S-ubtraction.

Answer 3

ok

Answer 4

the order of operations?

Answer 5

correct !

Answer 6

:)

Answer 7

Where I'm from we don't usually call it that lol XD
We are weird haha

Answer 8

lol

Answer 9

First we must solve (-2+1.6) when I put that in my calculator I get -.4
Then, all we do now is add (12.4+(-.4))
and you get 12.

Answer 10

so the answer is 12?

Answer 11

Yes that's the answer. :)

I can teach you a much much faster way of solving problems like these.

Answer 12

12.4 + (-0.4) add those and you get your answer

Answer 13

Do you know the "Distributive property"?

Answer 14

yes

Answer 15

The Distributive Property is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses.

Answer 16

You can use that as well. I like doing that more than order of operations.

Yup! You know your vocab :D

Answer 17

could you help me with a nother one ?

Answer 18

Yeah, I'll help you until your all done if you want.

Answer 19

thx 1 sec

Answer 20

What value of m makes the statement true?

–(m + 15) = –18 + (–15)

A.
–33

B.
–18

C.
3

D.
18

Answer 21

D. Because of Distributive property ;)