Question

Which placement of grouping symbols in the expression gives it a value of 14?

6 • 4 – 4 + 9 – 3

A.
(6 • 4 – 4) + (9 – 3)

B.
6 • 4 – [4 + (9 – 3)]

C.
6 • [(4 – 4 + 9) – 3]

D.
6 • (4 – 4 + 9) – 3

Answer 1

@mathmale

Answer 2

It'd be easiest to go through the 6 possibilities one by one until you find the possibility that has the desired value 14.

Looking at possibility #6: You've got 6 times (4-4+9), plus 3 added to this product.
That comes out to 6 * (9) +3, or 57. Wrong.

Do the same thing with the other 5 possibilities until you find the one that produces 14.

Answer 3

I think it's C.

Answer 4

Show me how you decided that. I need proof.

Answer 5

It was just a guess

Answer 6

Please, let's not deal in guesses.

I'm here to help, but I help you find your own answers thru legitimate math.

Answer 7

C has the value 36, which is not correct.

Answer 8

I really wanna learn how to do it, But i'm also in a big hurry.

Answer 9

Can't do much about your being in a hurry. Sorry. choose one of the other answers, and we'll go through it together to see if it has the value 14.

Answer 10

D

Answer 11

Type it out here. Remember "order of operations? rules? Which operation would you do first in D?

Answer 12

Parenthesees

Answer 13

Exponents

Answer 14

D.
6 • (4 – 4 + 9) – 3 Evaluate the quantity within ( ). 4-4+9 = ?

Answer 15

9

Answer 16

Right. What's the next operation you must now perform? Mult. or subtraction?

Answer 17

multiplication

Answer 18

right. Please do that multiplication now. When done, subtract 3 from your result.

Answer 19

6*9-3=??

Answer 20

51

Answer 21

So it's not D

Answer 22

My next guess is B

Answer 23

You're correct, but that's not 14. So, D is out. C is out.

I'm going to leave y ou for a while; please do the other probelms.
Seriously, seriously, please, please, do NOT guess. Guessing won't help you to understand this material.

Write out B and decide which math operation should be done 1st, 2nd, 3rd, etc.

Answer 24

6 • 4 – [4 + (9 – 3)] which operation must be done first? second?

Answer 25

Anything within ( ) must be done first.

Answer 26

1. Parenthesees
2. Exponents
3. Multiplication
4. Division
5. Addition
6. Subtraction

Answer 27

Good. In 6 • 4 – [4 + (9 – 3)] which operation must be done first? second?

Answer 28

I said it. That's why I numbered it.

Answer 29

In 6 • 4 – [4 + (9 – 3)] you must do that (9-3) first. What is 9-3?

Answer 30

6

Answer 31

Then you have 6 • 4 – [4 + 6]. Which operation must you do first now?

Answer 32

[4+6]

Answer 33

=10

Answer 34

Yes. 6 • 4 – 10 = ?

Answer 35

which op must you do first?

Answer 36

the answer is 14

Answer 37

yes. congrats.

Answer 38

But multiplication

Answer 39

What about it?

Answer 40

I asked y ou which operation you should do first. Which was that?

Answer 41

That's what the next step was

Answer 42

6 • 4 – 10

yes, mult. 6 by 4 first. You're correct. Nice work!

Answer 43

gotta get off the 'net. see y ou again! bye