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seraphim [82]
3 years ago
9

How do you fit numbers into a faction?

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0
Steps
Convert the whole number to a fraction. To do this, make the whole number the numerator of a fraction. ...
Find the reciprocal of the divisor. The reciprocal of a number is the inverse of the number. ...
Multiply the two fractions. To multiply fractions, first multiply the numerators together. ...
Simplify, if necessary.
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17) Solve the system as matrix equations using inverses. 17) A company produces three models of MP3 players, models A, B, and C.
Vinvika [58]

Answer:

Model A=30, Model B: 20, Model C: 45

Step-by-step explanation:

Let x be the amount of type A mp3 produced, and the amount of model B mp3's produced and z the amount of model C mp3 produced.

Since in total there are 303 hours for electronics work, then:

3.2x+5.4y+2.2z=303

Since in total there are 393 hours for assembly, then:

2.8x+2.4y+5.8z=393

Since in total there are 416 hours for quality assurance, then:

4.4x+3.4y+4.8z=416

Then, the linear system associated to the problem is

3.2x+5.4y+2.2z=303\\2.8x+2.4y+5.8z=393\\4.4x+3.4y+4.8z=416

with coefficient matrix A=\left[\begin{array}{ccc}3.2&5.4&2.2\\2.8&2.4&5.8\\4.4&3.4&4.8\end{array}\right] and vector of constant terms b=\left[\begin{array}{ccc}303\\393\\416\end{array}\right]

Since the determinant of A is equal to 36.704 then A is invertible.

Then for solve the system Ax=b, is enough find the inverse of A and operate

Ax=b\\A^{-1}Ax=A^{-1}b\\x=A^{-1}b

Using Octave we obtain that

A^{-1}=\left[\begin{array}{ccc}-0.22&-0.50 &0.71\\0.33&0.15&-0.34\\-0.028& 0.35&-0.20\end{array}\right]

Then

x=A^{-1}b=\left[\begin{array}{ccc}30\\20\\45\end{array}\right]

This means that 30 mp3's of model A, 20 of model B and 45 of model C must be produced

8 0
3 years ago
Whoever answers this first gets brainliest<br> Pls help ASAP
Mandarinka [93]

Answer:

Terminating goes to 3

Repeating goes to 4

Rational goes to 1

Irrational goes to  2

7 0
2 years ago
Read 2 more answers
Type the correct answer in each box. Use numerals instead of words.
34kurt

Answer:

100 120

Step-by-step explanation:

6 0
3 years ago
A bank pays $15 in interest for every $100 deposited.<br> The bank pays how much interest?
Veronika [31]

Answer:

15% interest

Step-by-step explanation:

because it's 15 out of 100 so that would be 15%

8 0
2 years ago
Select the approximate values of x that are solutions to f(x) = 0, where
irga5000 [103]
A=-2;b=9;c=9;
delta=b^2-4*a*c
root1=(-b+(delta^(0.5)))/(2*a)  
<span>root2=(-b-(delta^(0.5)))/(2*a)

delta =153
root1 = -0.8423
root2 =<span> 5.3423

Correct Answer is D</span></span>
3 0
3 years ago
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