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Alexus [3.1K]
3 years ago
8

An electrician changes a flat fee plus an hourly rate for a service call. She changes a total of $94 For a 3-hour service call o

n Monday and $130 for a 5-Your service call on Tuesday. how much should she change for 2-hour service call?
Mathematics
2 answers:
AnnyKZ [126]3 years ago
8 0

$56 (might be wrong but thatś what I got)

LenKa [72]3 years ago
4 0

flat rate is $40  + $ 18 per hour

3 hour = $18 x 3 = $54  + flat rate $ 40 = $ 94

5 hour = $ 18 x 5  = $90  + flat rate $ 40 = $130

2 hour = $ 18 x 2 = $ 36 + flat rate $ 40 = $ 76

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Svetllana [295]

Answer:

\dfrac{25}{26}

Step-by-step explanation:

Let

  • D be the event that the card drawn is a black card​
  • F be the event that the card drawn is a 10 card
  • F' be the event that the card drawn is not a 10 card

The probability

Pr(D\cup F')=Pr(D)+Pr(F')-Pr(D\cap F')\\

Note that

Pr(D)=\dfrac{26}{52}=\dfrac{1}{2}\\ \\Pr(F)=\dfrac{4}{52}=\dfrac{1}{13}\\ \\Pr(F')=1-\dfrac{1}{13}=\dfrac{12}{13}\\ \\Pr(D\cap F')=\dfrac{24}{52}=\dfrac{6}{13}

So,

Pr(D\cup F')=\dfrac{1}{2}+\dfrac{12}{13}-\dfrac{6}{13}=\dfrac{25}{26}

8 0
3 years ago
Please help... I really need this.
valentinak56 [21]

Answer:

\frac{4x^3-3x^2+5x+6}{x+6}=4x^2-27x+167-\frac{996}{x+6}

Step-by-step explanation:

The division problem given to us is (4x^3-3x^2+5x+6)\div (x+6).

To perform the synthetic division, we write out the coefficient of the polynomial. We set the linear factor to zero and solve for x, this becomes our divisor. That is x+6=0\implies x=-6.

We carry out the synthetic division as shown in the attachment.

The result of the synthetic division is 4   -27   167   -996

The first three terms are the coefficients of the quotient and the last term is the remainder.

Therefore the quotient is q(x)=4x^2-27x+167 and the remainder is r(x)=-996.

The dividend, the quotient and the divisor are written as

\frac{4x^3-3x^2+5x+6}{x+6}=4x^2-27x+167-\frac{996}{x+6}

The correct answer is A

3 0
3 years ago
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Illusion [34]

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43 divided by 8 is 5.375.

8-5+5.375

8+0.375

The answer I got was 8.375

5 0
3 years ago
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alekssr [168]

Answer: I think the answer is 50minutes

Step-by-step explanation:

750/15=50

8 0
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Step-by-step explanation:

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