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3 years ago

Please help with #14 don’t need the graph just the variables 4 the total cost please!!!?!?!?!?

Mathematics

1 answer:

Sever21 [200]3 years ago

4 0

Answer:

The equation would be 2+0.50x. Im not sure about the graph though

Step-by-step explanation:

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Write each rate as a unit rate 44pints in 4 quarter

nikklg [1K]

That's a dollar n 44 cents Ik that's right

7 0

3 years ago

Twice the difference of x and 6 is greater than the reciprocal of 2.

o-na [289]

Answer:

x > 25/4

Step-by-step explanation:

2(x - 6) > 1/2

4x - 24 > 1

4x > 25

x > 25/4

4 0

2 years ago

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

Plz i need help i don't get this one

Zinaida [17]

Answer:

d = 16.3 ft

Step-by-step explanation:

This is a right triangle, so we can use the Pythagorean theorem

a^2 +b^2 = c^2

where a and b are the legs and c is the hypotenuse

d^2 + 24^2 = 29^2 where d is the distance

d^2 +576 = 841

Subtract 576 from each side

d^2 +576-576 = 841-576

d^2 =265

Take the square root of each side

sqrt(d^2) = sqrt(265)

d = sqrt(265)

d =16.2788206

To the nearest tenth

d = 16.3 ft

8 0

3 years ago

Help, I need it fast! D:

patriot [66]

Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

Let's first establish the simple interest formula which we will require to solve this problem as displayed below:

Simple Interest = Principal × Rate of Interest × No. of Time Periods

I = PRN

Now let's substitute the values from the problem into this formula as displayed below:

I = $90

P = ?

R = 6%

N = 3 years

I = PRN

90 = P × 0.06 × 3

P = 90 / 0.06 × 3

P = 90 / 0.18

P = $500

ANSWER:

As the principal and the amount borrowed is the same, Claire borrowed $500. Therefore, the answer is:

D ) $500

Please mark as brainliest if you found this helpful! :)
Thank you <3

5 0

3 years ago