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Nastasia [14]
2 years ago
15

Solve the following equation 2(x+5)=24

Mathematics
1 answer:
xxMikexx [17]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

2(x+5)=24

2(x)+2(5) =24

2x +10=24

    -  10  -10

2x=14

2x/2x  14/2x

x=7

Hope this helps :)

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Determine the type and number of solutions of −4x2 − 3x + 7 = 0
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Then it has two real roots.
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Help please thank you
Sav [38]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
The cost, C. of producing coolers, x, is modeled by the equation C = 0.005x2 - 0.3x + 17. How many coolers are
melamori03 [73]

Answer:

66 coolers

Step-by-step explanation:

C = 0.005x² - 0.3x + 17

When C = $19

19 = 0.005x² - 0.3x + 17

19 - 17 = 0.005x² - 0.3x

2 = 0.005x² - 0.3x

0.005x² - 0.3x - 2 = 0

x = -b ± √b² - 4ac / 2a

= -(-0.3) ± √-0.3² - 4*0.005*-2 / 2*0.005

= 0.3 ± √ 0.09 - (-0.04) / 0.01

= 0.3 ± √ 0.09 + 0.04 / 0.01

= 0.3 ± √ 0.13 / 0.01

= 0.3/0.01 ± √0.13/0.01

= 30 ± 0.36/0.01

x = 30 ± 36

x = 30 + 36 or 30 - 36

x = 66 or -6

Number of coolers can not be negative

Therefore, number of coolers produced when the cost is $19

is 66 coolers

3 0
2 years ago
Exercise 3
Lelechka [254]

Answer:

I'm sorry

Step-by-step explanation:

I don't know the answer

6 0
2 years ago
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