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Arisa [49]
3 years ago
14

There are 75 students in a speech contest. Yesterday 1/5 of them gave their speech. Today, 3/5 of the remaining students gave th

eir speeches. How many students still haven't given their speeches?
Mathematics
1 answer:
Jet001 [13]3 years ago
7 0

Answer: 39 students.

Step-by-step explanation: 1/5 of 75 is 60. Now we need to find out what 3/5 of 60 is. 3/5 times 60 = 39. 39 students need to give their speeches.

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The most recent census for a city indicated that there were 919,716 residents. The population of the city is expected to increas
OLEGan [10]

Answer:

1,474,951.

Step-by-step explanation:

Given a population that increases by a constant percentage, we can model the population's growth using the exponential model.

P(t)=P_o(1+r)^t,$ where \left\{\begin{array}{lll}P_o=$Initial Population\\r$=Growth rate\\$t=time (in years)\end{array}\right\\P_o=919,716\\r=3.7\%=0.037\\$t=13 years

Therefore, the population of the city in 13 years time will be:

P(t)=919,716(1+0.037)^{13}\\\\=919,716(1.037)^{13}\\\\=1,474,950.9\\\\\approx 1,474,951

The population be at that time will be approximately 1,474,951.

3 0
3 years ago
PLEASE HELP ASAP!! CORRECT ANSWERS ONLY PLEASE!!!
rosijanka [135]

Answer:

c

Step-by-step explanation:

kzjzjxjxjxjxjxjdjd

6 0
3 years ago
Germany has a population
egoroff_w [7]

Answer:

C. -186,205

Step-by-step explanation:

636,854 - 827,155 + 684,862 - 680,766

=> 1,321,716 - 1,507,921

=> -186,205

8 0
3 years ago
The sum of three consecutive numbers is 72. What is the largest of these numbers?
kicyunya [14]
3 consecutive numbers....x, x + 1 and x + 2

x + x + 1 + x + 2 = 72
3x + 3 = 72
3x = 72 - 3
3x = 69
x = 69/3
x = 23

x + 1 = 23 + 1 = 24
x + 2 = 23 + 2 = 25

so ur numbers are 23,24,25 with 25 being the largest
6 0
3 years ago
Read 2 more answers
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Crank
C. [-1 10 0 -9 1 8]
B. [0 -6 3 4 1 -4]
7 0
2 years ago
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