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2 years ago

4

36 − f − f − f − f = 0. Write a division sentence for this repeated subtraction sentence. What is the value of f?

1 answer:

user100 [1]2 years ago

8 0

Answer:

Value of f = 9

Step-by-step explanation:

We need to find 36 − f − f − f − f = 0

That is 4 times f is reducing from 36

36 − 4f = 0

36 − 4f + 4f = 0 + 4f

4f = 36

$4f\times \frac{1}{4}=36\times \frac{1}{4}\\\\f=\frac{36}{4}=9$

Value of f = 9

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Answer:

$16:27$

Step-by-step explanation:

GIVEN: At $11:00\text{ A.M.}$ , there are $400$ members and $150$ non-members visiting a museum. After $11:00\text{ A.M.}$ , $10$ members leave every five minutes and $5$ non-members arrive every five minutes.

TO FIND: ratio of members to non-members at $1:00\text{ P.M.}$

SOLUTION:

Total number of members in museum at $11:00\text{ A.M.}$ $=400$

as after every $5$ minutes $10$ members leave

total number of $5$ minutes interval in $2$ hour $=\frac{60}{5}=12$

total members at $1:00\text{ P.M.}$ $=400-10\times24$

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Total number of non-members in museum at $11:00\text{ A.M.}$ $=150$

as after every $5$ minutes $5$ non-members arrive

total number of $5$ minutes interval in $2$ hour $=\frac{60}{5}=12$

total non-members at $1:00\text{ P.M.}$ $=150+5\times24$

$=270$

ratio of members to non-members at $1:00\text{ P.M.}$ $=\frac{\text{number of members}}{\text{number of non-members}}$

$=\frac{160}{270}$

$=\frac{16}{27}$

Hence the ratio of members to non-members at $1:00\text{ P.M.}$ is $\frac{16}{27}$

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