3 years ago

What division problem equals 9/5

Mathematics

1 answer:

EleoNora [17]3 years ago

3 0

Answer:

9÷5=9/5

Step-by-step explanation:

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The first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in the series.

maks197457 [2]

Answer:

195.25

Step-by-step explanation:

Consider geometric series S(n) where initial term is a

So S(n)=a+ar^1+...ar^n

Factor out a

S(n)=a(1+r+r^2...+r^n)

Multiply by r

S(n)r=a(r+r^2+r^3...+r^n+r^n+1)

Subtract S(n) from S(n)r

Note that only 1 and rn^1 remain.

S(n)r-S(n)=a(r^n+1 -1)

Factor out S(n)

S(n)(r-1)=a(r^n+1 -1)

The formula now shows S(n)=a(r^n+1 -1)/(r-1)

Now use the formula for the problem

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3 years ago

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Olenka [21]

Answer:

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Step-by-step explanation:

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2 years ago

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What decimal is smaller than 0.8

VashaNatasha [74]

Answer:

0.79

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3 years ago

Read 2 more answers

5 - 3x > -19 Can someone please help me

oksano4ka [1.4K]

Answer:

- 3x > -19 -5

- 3x > -24

3x < 24

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8 0

2 years ago

Solve for w. 5w + 9z = 2z + 3w w = z w = z w = –2z w = –7z

Semenov [28]

5w + 9z = 2z + 3w

Move terms with w to the left - subtract 3w from both sides

2w + 9z = 2z

Subtract 9z from both sides

2w = -7z

Divide both sides by 2

w = $\frac{-7}{2}z$

6 0

3 years ago