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Andrei [34K]
3 years ago
15

In a class of 32 students, 4 have birthdays in October.What percent have October birthdays

Mathematics
2 answers:
dimaraw [331]3 years ago
8 0

Answer:

12.5%

Step-by-step explanation:

percent = # of October birthdays/total class # = 4/ 32 = 1/8 = 0.125 = 12.5%

jeka943 years ago
6 0

Answer: 12.5%

Step-by-step explanation:

Total number of students = 32

4 are born in October.

Percentage are expressed in hundreds, therefore, Percentage of those born in October = 4/32 × 100

=0.125 × 100

=12.5%

I hope this is clear, please mark as brainliest answer.

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balu736 [363]

Answer:

Step-by-step explanation:

2n + 8.5 = 23

2n = 14.5

2n = 7.25 or 7 1/4 feet

3 0
3 years ago
Two days after a biology experiment there was 49 million bacteria present. Four days after the experiment there was 600.25 milli
nataly862011 [7]

Answer:

y=Ae^(1.25t)

Step-by-step explanation:

From the expression  y=Ae^kt

After two days of the experiment, y = 49 million, t=2

After four days of the experiment, y= 600.25 million, t=4

A is the amount of bacteria present at time zero  and t is the time after the experiment (in days)

At t=2 and y =49

 49=Ae^2k…………….. (1)

At t=4 and y = 600.25

600.25=Ae^4k………… (2)

Divide equation (2) by equation (1)

600.25/49=(Ae^4k)/(Ae^2k )

12.25=e^2k

Take natural log of both sides

ln⁡(12.25) =2k

2.505⁡ =2k

k=1.25

The exponential equation that models this situation is y=Ae^(1.25t)

8 0
3 years ago
If h(r) = r – 6, what is the value of h(–9)?
strojnjashka [21]

Answer:

h(r)=r-6

-15=-9-6

3 0
3 years ago
Iĺl mark brainlist
N76 [4]

Answer:

C. 16√5

Step-by-step explanation:

a squared plus b squared equals c squared!

7 0
3 years ago
Tavon has a gift card for $70 that loses $3 for each​ 30-day period it is not used. He has another gift card for $ 60 that loses
vladimir2022 [97]

Hello,


Your answer would be: 55


<u><em>My work:</em></u>

For this problem all you have to do is keeping subtracting 3 until you get a matching number in which I got 55.


Hope this helps!


Brainliest!?!


Have a great day:)


~Rendorforestmusic

5 0
3 years ago
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