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Ymorist [56]
2 years ago
13

In a lab experiment, 610 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to dou

ble every 23 hours. How long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present?​
Mathematics
1 answer:
Alex777 [14]2 years ago
5 0

Answer:

It would take 19 hours and 36 minutes until there are 1040 bacteria present.

Step-by-step explanation:

Given that in a lab experiment, 610 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 23 hours, to determine how long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present, the following calculation must be performed:

610X = 1040

X = 1040/610

X = 1.7049

2 = 23

1.7049 = X

1.7049 x 23/2 = X

39.2131 / 2 = X

19.6 = X

100 = 60

60 = X

60 x 60/100 = X

36 = X

Therefore, it would take 19 hours and 36 minutes until there are 1040 bacteria present.

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Find the 37th term of the arithmetic sequence: -38,-8,22,52
Leya [2.2K]

Answer:

1042

Step-by-step explanation:

-38,-8,22,52

The common difference is 52 - 22 = 30

a_1 = -38

a_2 = -38 + 30

a_3 = -38 + 2 * 30

a_4 = -38 + 3 * 30     (notice that the common difference is multiplied by 1 less than the term number)

a_n = -38 + (n - 1)30      (since the term number is n, we multiply the common difference by n - 1)

a_n = -38 + 30(n - 1)

a_37 = -38 + 30(37 - 1)

a_37 = 1042

3 0
2 years ago
Can anyone answer this question about angles!
TiliK225 [7]

Isosceles triangle, angle P = angle Q.

3x + 10 = x + 52

2x = 42

x = 21

Congruent angles are both x+52=73 degrees.  Triangle angles add to 180 so

y = 180 - 73 - 73 = 34 degrees

Answer: 34

7 0
3 years ago
12∙(40-39)+2<br><br> A. 18<br><br> B. 14<br><br> C. 24<br><br> D. 30
monitta

Answer:

B.14

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
10
lina2011 [118]

Answer:

5/14

Step-by-step explanation:

5 + 9 = 14- so our denominator is 14

Theres 5 milk chocolates, so the probability is 5/14

I hope this helped, please mark Brainliest, thank you !!

4 0
3 years ago
Quick algebra 1 assignment for 50 points!
Sergeeva-Olga [200]

The example on direct variation is illustrated below based on the information given.

<h3>How to illustrate the direct variation?</h3>

An example will be:

When x = 2, y = 10. Find the value of y when x is 6.

In this case, this will be calculated thus:

y = kx

10 = 2k

k = 10/2

k = 5

Since y = kx.

y = 5 × 6

y = 30

The value of y is 30.

Learn more about variation on:

brainly.com/question/25215474

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3 0
1 year ago
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