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allsm [11]
3 years ago
8

Consider the geometric sequence 4, 40, 400, 4000, ...

Mathematics
1 answer:
Rom4ik [11]3 years ago
7 0

Answer:

a(n) = 4*10(n - 1)

Step-by-step explanation:

Each term of the given sequence is 10 times greater than the previous term.

The first term of this sequence is 4.

Thus, the explicit formula desired is:

a(n) = 4*10(n - 1).

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A number is divided by 18 the result is 20 what is the number<br>​
Basile [38]

Answer:

360

Step-by-step explanation:

You can solve this by doing 18 times 20 is 360: and then dividing 360 by 18, results in 20.

3 0
3 years ago
Read 2 more answers
Kendal bought x boxes of cookies to bring to a party. Each box contains 12 cookies. She decides to keep two boxes for herself. S
Georgia [21]

Answer:

Step-by-step explanation:

Total number of boxes of cookies that Kendal bought to bring to the party is x.

Each box contains 12 cookies. This means that total number of cookies in x boxes would be

12 × x = 12x

She decides to keep two boxes for herself. This means that the total number of cookies that she kept for herself would be

12 × 2 = 24 cookies

She brings 60 cookies to the party.

The equation that can be used to find the number of boxes, x, Kendal bought would be

12x = 24 + 60

12x = 84

x = 84/12 = 7 boxes

6 0
3 years ago
If 2/3 of a number is 10, then what is 0.15 times of that number?
maksim [4K]

Answer:

  • d) 2.25

Step-by-step explanation:

Let the number is x.

<u>2/3 of a number is 10:</u>

  • 2/3x = 10
  • x = 3*10/2 = 15

<u>0.15 times of the number is:</u>

  • 15*0.15 = 2.25

Correct choice is d

7 0
3 years ago
Read 2 more answers
What is 3/4 minus 1/5
Crazy boy [7]
3/4 - 1/5
0.75 - 0.2
0.55

Answer: 0.55 or 11/20
6 0
3 years ago
Read 2 more answers
Johanna, Elizabeth, and Dan are preparing a chemical solution for a research project. When
Bond [772]

Using the together rate, it is found that they would prepare the solution in 1.71 minutes working together.

<h3>What is the together rate?</h3>

It is the sum of each separate rate.

In this problem, the rates are given by:

  • Johanna's: 1/6.
  • Elizabeth's: 1/6.
  • Dan's: 1/4.

Hence the together rate is given by:

\frac{1}{x} = \frac{1}{6} + \frac{1}{6} + \frac{1}{4}

\frac{1}{x} = \frac{1}{3} + \frac{1}{4}

\frac{1}{x} = \frac{4 + 3}{12}

7x = 12

x = 12/7

x = 1.71.

They would prepare the solution in 1.71 minutes working together.

More can be learned about the together rate at brainly.com/question/25159431

#SPJ1

8 0
2 years ago
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