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iragen [17]
3 years ago
6

The answer is 16, I am just not sure how to arrive at that answer.

Mathematics
1 answer:
Serjik [45]3 years ago
7 0

Step-by-step explanation:

∑ (4ⁿ⁺¹ / 5ⁿ)

Rewrite 4ⁿ⁺¹ as 4 (4ⁿ).

∑ 4 (4ⁿ / 5ⁿ)

∑ 4 (4/5)ⁿ

This is a geometric series.  The sum of an infinite geometric series is:

S = a / (1 −r)

where a is the first term and r is the common ratio.

Here, the first term is 16/5 (because n starts at 1), and the common ratio is 4/5.

S = 16/5 / (1−4/5)

S = 16/5 / (1/5)

S = 16

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(27 thousands 3 hundreds 5 ones) x 10
anyanavicka [17]

Answer:

Two hundred seventy three thousand and fifty .

Step-by-step explanation:

Given : (27 thousands 3 hundreds 5 ones) x 10

Solution:

27 thousands 3 hundreds 5 ones = 27,305

So, 27,305 \times 10

273,050

Periods are counted from last .

The 1st period consists of ones, tens and hundred.

The 2nd period consists of  thousand, 10 thousand and 100 thousands.

The 3rd period consists of  million, 10 million and 100 million.

So, 273,050 is Two hundred seventy three thousand and fifty

Hence (27 thousands 3 hundreds 5 ones) x 10 is Two hundred seventy three thousand and fifty .

4 0
3 years ago
Read 2 more answers
Which shows all the names that apply to the figure?
saul85 [17]
The answer is A


A Parallelogram is a shape with 4 sides that has two pairs of parallel sides. The opposite sides must have equal length.  This is accurate for this shape.

A Rectangle is a shape with 4 sides that has four right angles.  This is accurate for this shape.

A rhombus is a shape with 4 sides of equal length.  This is not accurate for this shape.

A square is a shape with 4 sides of equal length and four right angles.  This is not accurate for this shape.
4 0
3 years ago
Aaron makes $45 dollars per day delivering newspapers. He earns 0.75 for each newspaper he delivers. How many newspaper, n, must
ANEK [815]

Answer:

20 newspapers

Step-by-step explanation:

First create an equation.

y = 0.75x + 45

Now substitute 60 y and solve for x.

60 = 0.75x + 45

60 - 45 = 0.75x + 45 - 45

15/0.75 = 0.75x/0.75

x = 20 newspapers

5 0
2 years ago
Read 2 more answers
I dont understand the circled question ....please help!
irina1246 [14]

Parallel lines NEVER intersect/meet, this is because they have the same slope and they go in the same direction.

These lines are parallel because they have the same slopes of 3/4 (because they go 3 units up and 4 units to the right. slope = rise/run)

7 0
3 years ago
Can someone please help me with this?
alisha [4.7K]

i cant read it

Answer:

j

Step-by-step explanation:

3 0
3 years ago
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