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nikklg [1K]
4 years ago
6

What has two expressions that have the same value?

Mathematics
1 answer:
Dmitrij [34]4 years ago
4 0
<span>equivalent expressions</span>
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How many ml of 3 acetic acid must be mixed with 15 acetic acid to give 2500 ml of 10 % acetic acid
Umnica [9.8K]

Answer:

1041 ML

Step-by-step explanation:

5 0
3 years ago
4) Dan had 199 dollars to spend on 7 books. After
IRINA_888 [86]

Answer:

The answer is that each book costs 26 dollars

Step-by-step explanation:

First we subtract 199 dollar from 7 =182

Then we divide 182 dollars to the seven book in order to find a unit =182/7=26

To prove this answer multiply 26 dollars than 7 books and see if the outcome is 182.Then subtract 199 from 182 and see if you got 17.

3 0
3 years ago
A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t
Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

\frac{dP}{dt} =4.058e^{1.6t}

dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)

Where k is a constant of Integration.

At t=0, P(t)=36

36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19

Therefore:

P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560

3 0
3 years ago
Help me please how to solve y=1/2x-6
Dvinal [7]
Y=(1/2)x-6 and solving for x.
So first you bring the 6 to the other side: y+6=(1/2)x
Then you divide by (1/2) to isolate the x (y+6)/(1/2)=x
This simplifies to 2(y+6)=x    because dividing by one half is the same as multiplying by 2
Hope this helps :)
4 0
3 years ago
The sine of 67 degrees is 0.92. what is the cosine of 23 degrees?
patriot [66]

Answer:

Cos23° is -0.532833...........

7 0
3 years ago
Read 2 more answers
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