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Bess [88]
3 years ago
13

Does anyone know the answer? It’s due in an hour PLEASE HELPPP!!

Mathematics
1 answer:
valentinak56 [21]3 years ago
4 0

When i did that sort of thing i had a trick. But you are correct.

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I NEED HELP PLEASE! ;0
Fittoniya [83]

Answer:

4:6 or 2:3

Step-by-step explanation:

Since the ratio of mass of oxygen to carbon is 4:3, when there are two carbons the ratio will be 4:3*2=4:6=2:3. Hope this helps!

8 0
3 years ago
What is the difference between the sample average y and the population​ mean?
stepan [7]
When a finite number of samples are drawn from a larger population, the sample mean of that sample, while usually close to the population mean, is not the same thing.  A population mean, on the other hand, is a description of pretty much ALL of whatever is being examined.

Example of population:  Everyone in the USA
Example of a sample:    One person, chosen at random, from each of the 50 states


3 0
3 years ago
Write the statement as an algebraic expression.
Firdavs [7]

Answer:

(c^{2}+d)+2(cd)

Step-by-step explanation:

we know that

The algebraic expression of the phrase " The sum of square of c and d" is equal to adds the square of number c to the number d

(c^{2}+d)

The algebraic expression of the phrase " The sum of square of c and d increased by twice their product" is equal to

(c^{2}+d)+2(cd)

7 0
3 years ago
Read 2 more answers
Grace needs to buy a new printer. The printer she wants has a price tag of $60. She has a 25% off coupon and $50 in her bank acc
aleksklad [387]

Answer:

Yes, she will have $1.96 left

Step-by-step explanation:

Initial cost : $60

Discount : 25%=0.25

Calculating discount : 60 * 0.25 = 15

Calculating cost after discount : 60-15 = 45

Sales tax : 6.75%=0.0675

Calculating sales tax : 45 * 0.0675 = 3.0375≈$3.04

Calculating final cost : 45+ 3.04 = $48.04

Can she buy the printer : 50 - 48.04= $1.96

Answer : yes

7 0
3 years ago
Write as a fraction and ratio
nataly862011 [7]
*dabs frantically* :) :) :)

7 0
3 years ago
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