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AVprozaik [17]
3 years ago
11

The function f(x) = 50(1.2)x gives the number of bacteria in a science experiment, where x is the number of days after the start

of the experiment. To the nearest whole number, how many bacteria will there be after 5 days?
a
124
b
300
c
375,000,000
d
777,600,000
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0

Answer:

a. 124

Step-by-step explanation:

f(x) = 50(1.2)^x

x is the number of days. For 5 days, x = 5.

f(5) = 50(1.2)^5

f(5) = 50(2.48832)

f(5) = 124.416

Answer: 124

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bixtya [17]
The answer to the monthly payment is $257.1428571 or $258.

How to get the answer:
Simply minus $5555 to $555. You get $5000. 
Then, divide $5000 to the number of payments which is 42. (5000/42)
For that, you get a total of 119.047619. But that is not the final answer yet.
Next, we will multiply 119.047619 to 12, because we are looking for the monthly payment and we were given an "annual" rate. Annual means yearly and every year we have twelve (12) months. In that case, 119.047619 multiplied by 12 is equal to 1428.571428. Still, it is not the final answer.
The last step is, we will multiply the answer 1428.571428 to 18% or .18 and we get a total of 257.142857. Since we used the unit $ then we will a dollar for the answer. Completing the answer to the ]question, we get a total of $257.142857 or $258 for the monthly payment.

6 0
3 years ago
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If she pays back the loan at the end of 10 years what will her total payment be?
iVinArrow [24]
What amount is the loan?
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3 years ago
Is it possible for two numbers to have a difference of 8 and a sum of 1?
topjm [15]

Answer: yes , it is possible

Step-by-step explanation:

Let the first number be x and the second number be y .Then , the sum of the two numbers will be x + y , and their difference will be x - y.

Combining the two , we have :

x + y = 1 ............................... equation 1

x - y = 8 ................................. equation 2

solving the system of linear equation by substitution method. From equation 1 , make x the subject of the formula ,

x = 1 - y ...................... equation 3

Substitute equation 3 into equation 2 ,

1 - y - y = 8

1 - 2y = 8

add 2y to both sides

1 = 8 + 2y

subtract 8 from both sides

1 - 8 = 2y

- 7 = 2y

divide through by 2

y = \frac{-7}{2}

y = - 3.5

substitute y = -3.5 into equation 3 to find the value of x , we have

x = 1 - y

x = 1 - ( - 3.5 )

x = 1 + 3.5

x = 4.5

Let us check :

x + y will be

4.5 + (-3.5) = 1

Also ,

x - y will be

4.5 - (-3.5)

⇒ 4.5 + 3.5 = 8

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3 years ago
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Your answer is going to be A
7 0
2 years ago
What does 351 = (y × 8) + 7 equal
bogdanovich [222]

Simplify brackets

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Regroup terms

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344 = 8y

Divide both sides by 8

344/8 = y

Simplify 344/8 to 43

43 = y

Switch sides

<u>y = 43</u>

6 0
3 years ago
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