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sukhopar [10]
2 years ago
15

What is 2(–7.5x + 3)

Mathematics
2 answers:
Rama09 [41]2 years ago
3 0

Answer:

what is 2-(-7.5x+3)=21

Mnenie [13.5K]2 years ago
3 0
21 hope your grade is good
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Answer:

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4 0
3 years ago
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Help me solve this equation 3x-7=4x
Sauron [17]
Hey!

Let's write it, 3x-7=4x
Add 7 to both sides,
3x-7+7=4x+7
3x=4x+7
Subtract 4x from both sides.
3x-4x=4x+7-4x
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Since we don't want a negative variable, we have to divide both sides by -1.
\frac{-x}{-1}=\frac{7}{-1}
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3 years ago
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A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per
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Answer:

3lbs of Cashews

Step-by-step explanation:

lbs of Cashews, and 7 lbs of Peanuts

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$4.00(7) + $6.50(3) = $47.50

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3 years ago
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A scientist running an experiment starts with 100 bacteria cells. These bacteria double their population every 15 hours. Find ho
emmasim [6.3K]

Answer

It will take (t) = 24 hours to reach 300 .

Step by step explanation

It doubles every 15 hours.  initial bacteria = 100

We need to find how long it take for the bacteria cells to increase to 300.

300 = 100(2)^t/15

300/100 = 2^t/15

3 = 2^t/5

Taking "ln" both sides, we get

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t/15 = ln(3)/ln(2)

t/15 = 1.585

t = 1.585 * 15

t = 23.78 hours

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Thank you.


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3 years ago
Solve the x−4<2 or 4x−1>4 and write the solution in interval notation
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See photo. Hope it helps

3 0
3 years ago
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