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dusya [7]
2 years ago
13

Which one is it? ill mark brainliest if correct

Mathematics
1 answer:
Nuetrik [128]2 years ago
4 0

Answer:

D

Step-by-step explanation:

Mark as brainllest

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A dose of medicine is made by diluting one part of concentrate to 5 parts of water. How much of the concentrate should there be
Anastasy [175]

Answer:

15 ml

Step-by-step explanation:

If we mix 1 part concentrate and 5 parts water, we have 6 parts in total.

To create 90ml medicine, <em>how many "6 parts" are there?</em>

There would be 90/6 = 15 total "6 parts".

Each of the "6 parts's" 1 part is concentrate, so concentrate would be 1 * 15 = 15 ml.

<u>In ratio:</u>

\frac{Concentrate}{Total(Water+Concentrate)}=\frac{1}{5+1}=\frac{1}{6}\\\frac{1}{6}*90=15

6 0
3 years ago
Will give BRAINLEST :)
DiKsa [7]

Answer:

A

Step-by-step explanation:

This explanation mostly depends on what you're learning right now. The first way would be to convert this matrix to a system of equations like this.

g + t + k = 90

g + 2t - k = 55

-g - t + 3k = 30

Then you solve using normal methods of substitution or elimination. It seems to me that elimination is the quickest method.

g + t + k = 90

-g - t + 3k = 30

____________

0 + 0 + 4k = 120

4k = 120

k = 30

No you can plug this into the first two equations

g + t + (30) = 90

g + t = 60

and

g + 2t - (30) = 55

g + 2t = 85

now use elimination again by multiplying the first equation by -1

g + 2t = 85

-g - t = -60

_________

0 + t = 25

t = 25

Now plug those both back into one of the equations. I'll just do the first one.

g + (25) + (30) = 90

g = 35

Therefore, we know that Ted spent the least amount of time on the computer.

The second method is using matrix reduction and getting the matrix in the row echelon form, therefore solving using the gauss jordan method. If you would like me to go through this instead, please leave a comment.

3 0
2 years ago
Heeeeeelllppp me please!!
IrinaK [193]

Answer:

A. 4:5 for each individual tile

B. 800

C.800:1800

D. I cannot answer this question because the number is half erased and i am not good in that area.

Hope this helps anyway!


Step-by-step explanation:


8 0
3 years ago
I need help with number 7
natali 33 [55]

Answer:

B would be the correct answer

Step-by-step explanation:

5 0
1 year ago
How to determine the volume of a cup?​
snow_lady [41]

Answer:

1 to 8  in cups or 1 to 16 in table spoons

Step-by-step explanation:

4 0
2 years ago
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