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2 years ago

5x-2y=15 2x+6y=-11 solve by substitution or equal values method

Mathematics

1 answer:

g100num [7]2 years ago

5 0

Answer:

Point form -

$(2-\frac{5}{2})$

Equation form -

$x=2, y=-\frac{5}{2}$

Step-by-step explanation:

if you have any questions feel free to ask

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What is (-4.8y + 20.1) - (12.7y + 9.3)?

Nat2105 [25]

(-4.8y + 20.1) - (12.7y + 9.3) simplified is -17.5y+10.8

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2 years ago

AB=AD. Enter the range of values for x. 40° 14° 9x-27 108. ?

zalisa [80]

The range of values of x as shown in the diagram is -9 < x < 15

<h3>Inequality expressions</h3>

Inequality are expressions not separated by an equal sign. The required inequality expression is given as:

|9x - 27| < 108

For the positive inequality

9x - 27 < 108

9x < 108 +27

9x < 135

x < 15

For the negative inequality

-9x + 27 < 108

-9x < 108 - 27

-9x < 91

x > -9

-9 < x

Hence the range of values of x as shown in the diagram is -9 < x < 15

Learn more on inequality here: brainly.com/question/24372553

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1 year ago

Read 2 more answers

If you're creative, I need help. I am doing a math project where I need to define 20 words and include a picture and some facts

valentinak56 [21]

Answer:

Powerpoint

Step-by-step explanation:

I think that a powerpoint presentation would be best. With the first slide, put the picture and a title. With each slide, put more than one word and maybe an example. Make it colorful and maybe put some math puns in some of them.

Hope this helps.

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3 years ago

There are 15 European cities that Kevin would eventually like to visit. On his next vacation, though, he only has time to visit

antoniya [11.8K]

Answer:

32760 different schedules are possible.

Step-by-step explanation:

The order is important.

For example

Prague on Monday, Berlin on Tuesday, Liverpool on Wednesday and Athens on Thursday is a different schedule than Berlin on Monday, Prague on Tuesday, Liverpool on Wednesday and Athens on Thursday.

So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!)}$