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german
3 years ago
12

Z=5x - 11 y can someone please hell

Mathematics
1 answer:
Airida [17]3 years ago
8 0

Answer:

\frac{z+11y}{5}

Step-by-step explanation:

z=5x-11y

+11y on both sides

z+11y=x

divide by 5 on both sides

<h2>\frac{z+11y}{5}</h2>
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Jack and Jill live 126 km apart. They want to leave their homes at the same time,
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Answer:

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Step-by-step explanation:

Given as, Distance between Jack  and Jill = 126 km

Speed of Jack rides = 18 kilometers per hours

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Let the distance travel by Jack = x km

And the distance travel by Jill  =  (126 - x ) km

Time taken by Jack and Jill = T hours

Now , Distance = Speed × Time

So,     x = 18 × T

And  126 - x = 24 × T

Or,    126 - x =  24 × \frac{x}{18}

Or,    126 - x =  x × \frac{4}{3}

Or,    378 - 3x = 4x

Or,    378 = 7x

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And distance travel by Jill = 126 - 54 = 72 km

So, time taken by Jack = \frac{x}{18} = \frac{54}{18}

Or, Time taken by Jack = 3 hours

Similarly Time take by Jill = \frac{72}{24} = 3 hours

∵ Both Jack and Jill will take 3 hours to meet at 12 : 00 pm

Hence, Both will leave their homes to meet on time at 9 am   Answer

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