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4 years ago

2/5 of 40 in fractional parts

Mathematics

2 answers:

Romashka [77]4 years ago

7 0

Dividing 40 into fifths...
40 ÷ 5 = 8

Since 1/5 of 40 is 8, 2/5 of 40 is <u>16</u>.

Sati [7]4 years ago

5 0

2 2
--- x 40 = ---- x 8 = 16
5 1

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How many grams are in 40 hectograms

hjlf

40 hectograms = 4000 grams

6 0

3 years ago

HELP!Please solve! this!!

Angelina_Jolie [31]

Answer:

Recursive formula for geometric sequence

$a_{n}=a_{n-1}\times r$

is $a_{n}=a_{n-1}\times 6$

and explicit formula for geometric sequence $a_{n}=a_{1}^{r-1}$ is

$a_{n}=(\frac{1}{2})^{6-1}$

Step-by-step explanation:

Given sequence is $\frac{1}{2},3,18,108,648,...$

To find the recursive and explicit formula for this sequence:

Let $a_{1}=\frac{1}{2},a_{2}=3,a_{3}=18,a_{4}=108,a_{5}=648,...$

To find the common ratio r:

$r=\frac{a_{2}}{a_{1}}$

$=\frac{3}{\frac{1}{2}}$

$=3\times 2$

$=6$

Therefore r=6

$r=\frac{a_{3}}{a_{2}}$

$=\frac{18}{3}$

$=6$

Therefore r=6

Therefore the common ration r=6

Therefore the given sequence is geometric sequence

Recursive formula for geometric sequence is $a_{n}=a_{n-1}\times r$

$a_{n}=a_{n-1}\times 6$

and explicit formula is $a_{n}=a_{1}^{r-1}$

$a_{n}=(\frac{1}{2})^{6-1}$

$=(\frac{1}{2})^{5}$

$=\frac{1}{32}$

Therefore $a_{n}=\frac{1}{32}$

8 0

3 years ago

Read 2 more answers

Can someone help me with this problem?

Vadim26 [7]

Answer:

12(5+3)

Step-by-step explanation:

Again, <u>common </u>greatest number is 12. Just try out numers until its the highest common number.

60/12 = 5

36/12 = 3

so,

12(5+3)

3 0

2 years ago

How to solve the equation. 1+4=5, 2+5=12, 3+6=21, 8+11=?

spayn [35]

The last one would be 40

8 0

3 years ago

Choose the solution to this inequality.

Mnenie [13.5K]

Answer:

A y < -1/2

Step-by-step explanation:

4/3 < -8/3 y

Multiply both sides by 3

3×4/3 < 3× -8/3 y

4 < - 8y

Divide both sides by -8

4/-8 > -8y/-8

The inequality sign changes by dividing by negative

-1/2 > y is same as y < -1/2

Therefore

y < -1/2

I hope this was helpful, please mark as brainliest

7 0

3 years ago