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ivann1987 [24]
3 years ago
10

Y = -1/6x + 5 X + 6y = 30

Mathematics
2 answers:
pashok25 [27]3 years ago
6 0
Y=<span><span><span><span>−1/</span>6</span>x</span>+<span>5 Hope this helps
</span></span>
ICE Princess25 [194]3 years ago
6 0
Where are the instructions?

<span>Y = (-1/6)x + 5
X + 6y = 30

I'll assume you are supposed to solve this system of linear equations.  Let's use the substitution method, since the first equation already gives y in terms of x:

x + 6([-1/6]x + 5) = 30

Then x - x + 30 = 30

Since this is always true, your system of linear equations has infiniately many solutions.</span>
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Why is sin(20) = sin(160) = -sin(200) = -sin(340)?
Mashutka [201]
The sine is positive in second quadrant   so sin 20 = sin (180-20) = sin 160.

The sine is negative in the third quadrant  so sin (180+20)  = -sin 20
so sin 20 = - sin 200

The sine is negative in fourth quadrant so sin 340 = -sin 20 and sin 20 = - sin 340.


7 0
4 years ago
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If b=a, where one the number line will b appear
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Right on top of 'a'. They'll look like one single point on the number line.
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3 years ago
Follow the rule to find the next three numbers in the pattern describe the pattern using the terms even and odd 1,6,11
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Answer:

I need more explanation to be able to answer this question.

Step-by-step explanation:

1,6,11,15,18,20,21

5 0
3 years ago
A chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium to obtain a 70-milliliter mixture.Write th
Verdich [7]

Answer:

S(x)=-0.4x+42

The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.

Step-by-step explanation:

It is given that a chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium-iodine to obtain a 70-milliliter mixture.

Let x be the number of milliliters of the 20% sodium-iodine.

Number of milliliters of the 60% sodium-iodine = 70-x

The amount of sodium iodine in the mixture is 20% of x and 60% of (70-x).

S(x)=0.20x+0.60(70-x)

S(x)=0.2x+42-0.6x

S(x)=-0.4x+42

Therefore,the required function is S(x)=-0.4x+42.

Substitute x=50 in the above equation.

S(50)=-0.4(50)+42

S(50)=22

The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.

4 0
4 years ago
Explain the steps for converting a terminating decimal into a rational number (fraction). Use the decimal 0.25 to provide an exa
forsale [732]
Terminating decimal
rmember that all numbers can be put over 1 and that is a fraction
ex
1/1=x
3/1=3
π/1=π

so therefor
0.25=0.25/1
if yo want to make the top number equal a whole number
multiply top and bottom by 100 to move 0.25 two decimal places to the right to make it ahwole number

0.25/1 times 100/100=25/100=1/4
answer is 1/4

steps:
1. find how many decimal placees the number goes to (ex. 0.25=2 places 0.2=1 place, 0.2345=4 places)
2. put the decimal over 1 (so if the decimal is x then do x/1)
3. find a fraction that is 10/10 such that the number of zeros one the top should be equal to the zeroes on the bottom, the number of zeros on the top should be equal to the number of decimal places from step 1
4. multiply the fraction (x/1) from step 2 by the fraction from step 3
5. simplify the resulting fraction

6 0
3 years ago
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