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Nikitich [7]
3 years ago
10

75 students decreased by 80%

Mathematics
1 answer:
Degger [83]3 years ago
3 0
Hello,

The initial amount of students is 75. The amount decreased by 80%.

new total = 75-80%

= 15

Thus, 15 students are left.

Faith xoxo
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Kelly bought a dog leash for $15.75 and a water bowl for
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Answer: $21.94

Step-by-step explanation:

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To rent a certain meeting room, a college charges a reservation fee of $37 and an additional fee of $6.70 per hour. the chemistr
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Larry Mitchell invested part of his $25,000 advance at 2% annual simple interest and the rest at 3% annual simple interest. If h
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Answer:

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Step-by-step explanation:

Let x represent the amount invested at 3%. Then the total interest earned is ...

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3 0
2 years ago
The explicit rule for a sequence is an=5(−2)^n−1
Murrr4er [49]

Answer:

3) a_n=-2a_{n-1}, a_1=5

Step-by-step explanation:

Given that the explicit rule for a sequence is a_n=5(-2)^{n-1}.

Now we need to find about what is the recursive rule for the sequence and match with the given choices to find the correct choice.

1) a_n=-2a_{n+1}, a_1=5

2) a_n=-5a_{n+1}, a_1=2

3) a_n=-2a_{n-1}, a_1=5

4) a_n=-5a_{n-1}, a_1=2

Plug n=1 into given formula to get first term

a_n=5(-2)^{n-1}

a_1=5(-2)^{1-1}=5(-2)^{0}=5(1)=5

base of the exponent part is (-2) so that means we need to multiply -2 to the previous term to get nth term

Hence correct choice is: 3) a_n=-2a_{n-1}, a_1=5

7 0
3 years ago
PLEASE HELP ME with this question
vovangra [49]

Answer:

abc are correct

Step-by-step explanation:

i took the test

8 0
2 years ago
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