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Tomtit [17]
2 years ago
5

Help me pleaseeeeeeeeeeeeeeeeee

Mathematics
1 answer:
Bad White [126]2 years ago
5 0

A

this question did by quadratic formula means x = -b ± √b^ - 4ac / 2a by this formula first arrange the equation -5 x^ + 7 -2 and

a = -5

b = 7

C = -2

after that substitute in the formula

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An rational number can be written as the ration of one what?
Rom4ik [11]
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KIM [24]
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6 0
3 years ago
1. Luis made a $150 bank deposit using $5 bills and $10 bills. He gave the teller a total of 24 bills. How many $10 bills were i
goldfiish [28.3K]

Answer:

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Step-by-step explanation:

First you have to make a system of equations like such

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Now you can use any strategy to simplify it but I'll use multiplication and the subtraction:

5x + 10y = 150 - 5x + 5y = 120 = 5y = 30 this simplified is y = 6. You then substitute 6 for y in either equation. x + 6 = 24 and make it on opposite sides. x = 18.

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3 years ago
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monitta
I'm not sure I'm understanding the wording of the question, but if it's this:

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Fran will have a base amount of $800 saved at the end of the 20 weeks assuming she continues to get at least 15 hours and her expenses don't increase (40x20 =800). At a net pay rate of $15 per hour (225/15=15), she will need to work an additional two hours per week for a total of 17 hours to earn the $600 needed to meet her goal. [15x2= 30, 30x20=600]
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3 years ago
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