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il63 [147K]
2 years ago
15

Find the 9th term of the geometric sequence 10, 40, 160, ...​

Mathematics
1 answer:
HACTEHA [7]2 years ago
5 0

Answer:

2,560

Step-by-step explanation:

You might be interested in
Q7.
VLD [36.1K]

Answer:

10

Step-by-step explanation:

Let c = sum of ages of all children.

mean age of all children = c/15 = 7

c = 15 * 7 = 105

The sum of the ages of all children is 105.

Let b = sum of ages of the 9 boys.

mean age of boys = b/9 = 5

b = 9 * 5 = 45

The sum of the ages of the boys is 45.

The sum of the ages of the girls is c - b.

c - b = 105 - 45 = 60

The number of girls is 15 - 9 = 6

mean age of girls = (sum of ages of the girls)/(number of girls) =

= 60/6 = 10

3 0
3 years ago
Jjjjjjjjjjjjjjjjjjjhhhhhhhhhhhhhhhhbvvvvvvvvvvvvvvvvvvvvv
Bogdan [553]

Answer:

Thanks for the point!

Step-by-step explanation:

Have a great day

5 0
3 years ago
The sum of 6 consecutive even numbers is 126.<br> What is the fourth number in this sequence?
lilavasa [31]

Answer:

The 6 numbers are: 16, 18, 20, 22, 24, and 26 so the answer would be 22.

4 0
3 years ago
Brittany removed half of the total number of marbles from her bag, and gave one fourth of the remaining marbles to her friend. W
patriot [66]

The fraction of the total number of marbles is left in the bag after removing and giving part to her friend is 3/8

<h3>Fraction</h3>

let

  • Number of marbles in her bag = x
  • Number of marbles removed from her bag = 1/2x

Remaining marbles = x - 1/2x

= (2x-x) / 2

= x/2

= 1/2x

Number of marbles given to her friend = 1/4 of 1/2x

= 1/4 × 1/2x

= 1/8x

Number of marbles left in the bag = Remaining marbles - Number of marbles given to her friend

= 1/2x - 1/8x

= (4x-x) / 8

= 3x/8

= 3/8x

Learn more about fraction:

brainly.com/question/11562149

#SPJ1

3 0
1 year ago
Julia is going for a walk through the neighborhood. What unit of measure is most appropriate to describe the distance she walks?
Kryger [21]

Answer:

Possibly meters or feet/yards.

A walk through a neighborhood would be less than a mile/kilometer but much further than an inch/centimeter.


8 0
2 years ago
Read 2 more answers
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