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Pachacha [2.7K]
2 years ago
5

Is 56 x greater than or less than 56?

Mathematics
1 answer:
oee [108]2 years ago
6 0

Answer:

What the value of x but its probaly more

Step-by-step explanation:

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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
Llana [10]

Sam's solution is incorrect. the correct answer is x=3


6 0
3 years ago
What is the distance between points -3 , 10 and 5 , 0​
fiasKO [112]

Answer:

5/4

Step-by-step explanation:

Use the slope formula

7 0
3 years ago
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If you divided the length of AQ by the length of WQ, what is the solution?
slamgirl [31]
The length of AQ is 4, the length of WQ is 12, 4 divided by 12 can be simplified as 1 divided by 3 so the answer is  A. 1/3
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3 years ago
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A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

4 0
3 years ago
The area shaded purple contains the solutions to this system of equations. Which ordered pair is a solution to the system?
Ksivusya [100]

Answer: -60,20

Step-by-step explanation:

3 0
2 years ago
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