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Darya [45]
2 years ago
7

I really need the answer for this

Mathematics
1 answer:
belka [17]2 years ago
5 0

Step-by-step explanation:

a-³/b-²

b²/a³ = 6²/5³ = 36/125

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Q6 (i) please i don’t know what i’m doing wrong
Dennis_Churaev [7]
Start by squaring the numbers on both sides to get rid of the square root on both the left and right sides to get:

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x + 5 = 25 – x

Then rearrange to make x the subject.

x + 5 = 25 – x

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Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 11 hours to do the same job.
tester [92]

Answer:

4 19/20 hours or 4 hours , 57 minutes

Step-by-step explanation:

Given

In 9 hours Maria can fill a certain order let Say X

In 9/9 hours Maria can fill   X/9 of the order

in 1 hour Maria can fill   X/9 of the order

__________________________________

In 11 hours Jim can fill a certain order let Say X

In 11/11 hours Maria can fill   X/11 of the order

in 1 hour Maria can fill   X/11 of the order

_____________________________________________

Therefore total order filled by them in one hour will sum of individual work done by them in one hour.

Mathematically,

total order filled by Jim and maria in one hour = work done by Jim in one + work done by Maria in one hour

total order filled by Jim and maria in one hour = 1/11 + 1/9

=> 1/11 + 1/9 \\=> (9 + 11)/11*9\\=> 20/99

=>20/99 of certain order is filled by both of them in one hour.

=>Total order is one. Hence, to get 1 from 20/99 we need to multiply it with its reciprocal (i.e 99/20) as 20/99 *99/20 = 1

now

=>20/99 of certain order is filled by both of them in 1 hour.

=>multiplying both order and hour with 99/20 we have

20/99 *99/20 of certain order is filled by both of them in 1* 99/20 hour

Thus total order is filled by them in 99/20 hours = 4 19/20 hours.

1 hour has 60 minutes

so 19/20 has 60*19/20 minutes = 57 minutes.

Working together, Jim and Maria   will  take 4 hours , 57 minutes  to fill the order.

3 0
3 years ago
The answer is 12/70 you can simplify it
4vir4ik [10]

Answer:

6/35

Step-by-step explanation:

12 divided by 2 is 6 and 70 divided by 2 is 35

4 0
1 year ago
The graph represents the heights of two climbers on a climbing wall over a 12-minute time period.
pishuonlain [190]
D. both climbers rested on the wall for 2 minutes
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