1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Citrus2011 [14]
3 years ago
11

A bacteria culture doubles twice a day. There are 143,622 bacteria present on day 15. How many were present on day 10?

Mathematics
1 answer:
gtnhenbr [62]3 years ago
8 0

Answer:

140

Step-by-step explanation:

- 143,622 bacteria present on day 15

- the bacteria doubles twice a day

that means each day backwards, the bacteria is four times less the day before

therefore:

- on day 14, the number of bacteria is 143,622 / 4

which is 35,905.5

and so on!

so:

- day 13 = 8,976.375

- day 12 = 2,244.09375

- day 11 =  561.0234375

- day 10 = 140.255859375

this rounded to the nearest whole number is

= 140 bacteria

(you can't have a part of a bacteria!)

hope this helps! :)

You might be interested in
Gender Students
alukav5142 [94]

Answer:

the answer is 44. . .

Step-by-step explanation:

20+24 =44

4 0
2 years ago
Mr. Cornapple is the fruit & vegetable buyer for a large school district. In a given week, he has a budget of $6,550. Bushel
Nina [5.8K]

Answer:

40x + 30y ≤ 6,550

Step-by-step explanation:

Given:

Cost of each apple bushels = $40

Cost of each corn bushels = $30

Total budget = $6,550

Find:

Inequality

Computation:

Assume;

Total number of apple bushels = x

Total number of corn bushels = y

So,

40x + 30y ≤ 6,550

6 0
3 years ago
Leila works as a tutor for an hour and as a waitress for an hour. This month, she worked a combined total of hours at her two jo
kupik [55]

Answer:

E(t)  =  5t +672     ($)

Step-by-step explanation:     INCOMPLETE QUESTION

FROM GOOGLE

she earns 12 $ per hour as tutor and 7 $ per hour as waitress, this month she worked a combined of 96 hours at her two jobs

Let be t the numbers of hours Leila works as tutor this month

Answer:

If Leila worked t hours as tutor then, she worked (96 - t) hours as waitress

E(t)  =  12 * t  +  7 * (96-t)

E(t)  =  12t   +  672 - 7t

E(t)  =  5t +672     ($)

7 0
3 years ago
Can someone please help me with this problem?
Sophie [7]

Answer:

20

Step-by-step explanation:

4 x 5 = 20

8 0
3 years ago
Read 2 more answers
A chocolate chip cookie recipe requires one and three quarters cups of flour to one cup of chocolate chips. If four and two thir
nikitadnepr [17]

1 cup of chocolate chips for every 1and 3/4 cup of flour

 so divide 4 and 2/3 x 1 and 3/4

turn them both into fractions

4 2/3 = 14/3

1 3/4 = 7/4

14/3 / 7/4 = 14/3 x 4/7 = 56/21 = 2 and 2/3 cups of chocolate chips are needed

8 0
3 years ago
Other questions:
  • Solve the inequality. 4(x – 3) – 2x ≥ 5 – (x + 2)
    15·2 answers
  • Solve the simultaneous equation x+y/4=1/2 and x-3y/3=2
    14·2 answers
  • What is the size of angle x ? <br> And give a reason
    7·1 answer
  • What is 10000 + 10000
    9·2 answers
  • Y = 4( x + 2)^2 - 8<br><br><br> Convert the equation from vertex form to standard form.
    10·2 answers
  • What is the product of a fraction multiplied by its multiplicative inverse? Justify your answer with an example
    9·1 answer
  • A candle burned at a steady rate. After 40 minutes, the candle was 12.5 inches. After 70 minutes, the candle was 11.75 inches. U
    6·1 answer
  • Se contrató a un arquitecto para construir un monumento conmemorativo. La estructura sería una pirámide formada con balas de cañ
    7·1 answer
  • Drag each tile to the correct box.
    13·1 answer
  • Zhi earns $16.54 per hour and works for 34 hours per week. Calculate his weekly pay, correct to the nearest 5 cents.​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!