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dimulka [17.4K]
3 years ago
14

When you do this seemingly simple problem, what is the answer you get?

Mathematics
2 answers:
bagirrra123 [75]3 years ago
8 0
Well, you would have to use, "PEMDAS", (Parentheses, Exponents, Multiplication, Division, Addition, & Subtraction), which are the order of operations to go by.
So first, we do the stuff in parentheses, we'll do 1 + 2 which = 3, and the parentheses around it will = to multiplying 3 times the answer of 6 divided by 2.
So since on the order of operations Addition & Subtraction, and Multiplication & Division could go from any order they appear on in the problem, we'll NOW do 6 divided by 2 which equals 3, times the three from above, which will = 9, so your <span>final answer is 9. =)
</span>I hope I helped! =D



s344n2d4d5 [400]3 years ago
3 0
The answer is 9  becuase 6 divide by 2 is 3 and 3 plus 2 plus 1 equals 9. hope it jelped

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Can you explain these words Rate, Per, Divide, Unit and the connections you see between them. Thank you very kind!!!
mestny [16]

Answer:

A rate is a little bit different than the ratio, it is a special ratio. It is a comparison of measurements that have different units, like cents and grams. A unit rate is a rate with a denominator of 1.

Per is defined as to, for, by or according to. An example of per used as a preposition is in the phrase, "as per standards," which means by the standards

Division is splitting into equal parts or groups. It is the result of "fair sharing

5 0
3 years ago
I need help with this question please?! I'm having a hard time answering it!
Darina [25.2K]

Answer:

£0.40

Step-by-step explanation:

Divide £40 by £3.30 to find the number she can buy

£40 ÷ £3.30 = 12.1212..

That is she can buy 12 light bulbs

cost = 12 × £3.30 = £39.60

change = £40 - £39.60 = £0.40

4 0
2 years ago
Air containing 0.04% carbon dioxide is pumped into a room whose volume is 6000 ft3. The air is pumped in at a rate of 2000 ft3/m
borishaifa [10]

Answer:

the concentration at 10 minutes= 0.4+0.0133= 0.4133%

Step-by-step explanation:

Air containing 0.04% carbon dioxide

V, volume of room is 6000 ft3.

Q, rate of air 2000 ft3/min,

initial concentration of 0.4% carbon dioxide,

determine the subsequent amount in the room at any time.

What is the concentration at 10 minutes?

firstly, we find the time taken for air to completely filled the room

Q = V/t

t = V/Q = 6000/2000 = 3min

so, its take 3mins for air to be completely filled in the room and for exhaust air to move out.

there is  an initial concentration of 0.4% carbon dioxide, and the air pump in is 0.04%.

therefore,

3mins = 0.04% of CO2

3*60 =180sec = 0.04%

1sec = 0.04/180 = 0.00022%/sec

so at any time the concentration of CO2 is 0.4 + 0.00022 =0.40022%/sec

What is the concentration at 10 minute

the concentration at 10minutes = the concentration for 1minute because at every minutes, the concentration moves in is moves out. = concentration for 2000ft3.

for 0.04% = 6000ft3

   ?          = 2000ft3

              = 2000* 0.04)/6000 =0.0133%

the concentration at 10 minutes= 0.4+0.0133= 0.4133%

4 0
3 years ago
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3 years ago
Solve x2 + 4x + 8 = 0.
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X^2 + 4x + 8 = 0
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5 0
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