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1 year ago

6

Please help me solve this problem please and thank you

1 answer:

Paha777 [63]1 year ago

4 0

Answer:

y = 0

x = 8

Step-by-step explanation:

subtract second equation from first one

3x - 6y - (3x - y) = 24 - 24 the - sign in front of the parenthesis effects the inside expressions

3x - 6y - 3x + y = 24 - 24 add/subtract like terms

-5y = 0 and so y = 0

to find the value of x we can use this information

3x - y = 24 since y = 0

3x = 24 divide both sides by 3

x = 8

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Step-by-step explanation:

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2 years ago

Solve 12.7 ≥ s − 5.3 Graph the solution.

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Hello!

I dont a graph to show you but I will solve the answer.

12.7 + 5.3 <span>≥ s

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s </span><span>≤ 18
</span><span>That is your answer.

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2 years ago

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Step-by-step explanation:

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2 years ago

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2 years ago

Jack and Jill live 126 km apart. They want to leave their homes at the same time,

Digiron [165]

Answer:

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

Step-by-step explanation:

Given as, Distance between Jack and Jill = 126 km

Speed of Jack rides = 18 kilometers per hours

Speed of Jill rides = 24 kilometers per hours

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

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Or, 126 - x = 24 × $\frac{x}{18}$

Or, 126 - x = x × $\frac{4}{3}$

Or, 378 - 3x = 4x

Or, 378 = 7x

i.e x = $\frac{378}{7}$ = 54 km

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

7 0

2 years ago