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loris [4]
3 years ago
15

Please help me figure this out.

Mathematics
1 answer:
fomenos3 years ago
4 0
That’s looks Hellas hard
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A factory makes tennis balls. Every tennis ball must meet a quality standard, or it will be rejected. The percentage that meets
Anettt [7]
The answer you're looking for is 40 tennis balls.
Hope this helped!
3 0
3 years ago
If 3 is added to a number and the sum is multiplied by 7,gives 91 as result. Find the number.​
WINSTONCH [101]

Answer:

10

Step-by-step explanation:

10+3 = 13

13 x 7 = 91

4 0
3 years ago
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A. –30<br><br> B .–19<br><br> C. –22<br><br> D. –10
elena-s [515]

Answer:

-30

Step-by-step explanation:

substitute the values and get -30

5 0
3 years ago
Read 2 more answers
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
Anettt [7]

Answer:

1) The size of the colony after 4 ​days is 6553 mosquitoes

2) After t = 4.9\ days

Step-by-step explanation:

To answer this question you must use the growth formula

N = N_0e ^ {kt}

Where

N_0 is the initial population of mosquitoes = 1000

t is the time in days

k is the growth rate

N is the population according to the number of days

We know that when t = 1 and N_0=1000 then N = 1600

Then we use these values to find k.

1600 = 1000e ^{k(1)}\\\\\frac{1600}{1000} = e ^ k\\\\ln(\frac{1600}{1000}) = k\\\\k = 0.47

Now that we know k we can find the size of the colony after 4 days.

N = 1000e ^ {0.47(4)}\\\\N = 6553\ mosquitoes

To know how long it should take for the population to reach 10,000 mosquitoes we must do N = 10000 and solve for t.

10000 = 1000e ^ {0.47t}\\\\10 = e ^ {0.47t}\\\\ln(10) = 0.47t\\\\t = \frac{ln(10)}{0.47}\\\\t = 4.9\ days

6 0
3 years ago
SOMEONE PLEASE HELP ME WITH THIS I NEED IT!!!
QveST [7]

Answer:

to be entirely honest i do not know

Step-by-step explanation:

5 0
3 years ago
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