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Natali5045456 [20]
3 years ago
6

Can you help me with this? I don't seem to understand..

Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0
All you have to do is set up 2 proportions, where one paint you know and the other you do not know and make it equal to the ratio as 2 blue : 5 yellow

For example: 1 blue/x yellow = 2 blue/5 yellow, and then cross multiply and solve for x.

Do this for all unknowns, blue and yellow paint making it equal to the ratio and solve for the unknown.
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Please help! I mark brainliest :3
vladimir1956 [14]
no for a
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no for c
that what I think It is opinion could be wrong
3 0
3 years ago
I'm lost.. How do you even start it???
Anastasy [175]
2x+y=4\\
-x+y=1\\\\
2x+y=4\\
\underline{x-y=-1}\\
3x=3\\
x=1\\\\
1-y=-1\\
y=2

7 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST
Evgesh-ka [11]
All you have to do is plug in the given values into the given equation and evaluate.

The expression is,

A(t) =  l{e}^{rt}
But we have to analyze the problem carefully. This is a natural phenomenon that can be modelled by a decay function. The reason is that, after every hour we expect the medicine in the blood to keep reducing.

Therefore we use the decay function rather. This is given by,


A(t) =  l{e}^{-rt}

where,

l = 100 \: milligrams

r =  \frac{14}{100}  = 0.14

and

t = 10 \: hours

On substitution, we obtain;

A(10) =  100 \times {e}^{ - 0.14 \times 10}


A(10) =  100 \times {e}^{ - 1.4}



Now, we take our calculators and look for the constant
e

,then type e raised to exponent of -1.4. If you are using a scientific or programmable calculator you will find this constant as a secondary function. Remember it is the base of the Natural logarithm.



If everything goes well, you should obtain;

A(10) =  100 \times 0.24659639


This implies that,


A(10) =  24.66

Therefore after 10 hours 24.66 mg of the medicine will still remain in the system.
3 0
3 years ago
Which of the following numbers is a solutikn for inequality below k >3
Leya [2.2K]

Answer:

Step-by-step explanation:

It is any number that is 3 or less

Hope that helps! :)

8 0
3 years ago
Read 2 more answers
Segment AB with endpoints at A(2, 4) and B(2, 18) is partitioned by point P according to the ratio of 3:4. Find the coordinate o
natta225 [31]

Using proportions, it is found that the coordinates of point P are given as follows: (2,10).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The segment is partitioned by point P according to the ratio of 3:4, hence:

P - A = \frac{3}{7}(B - A)

This proportion is applied for both coordinates, hence, for the x-coordinate:

x - 2 = \frac{3}{7}(2 - 2)

x - 2 = 0

x = 2.

For the y-coordinate:

y - 4 = \frac{3}{7}(18 - 4)

y - 4 = 6

y = 10.

Hence the coordinates are (2,10).

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

4 0
2 years ago
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