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3 years ago

What’s the equation for a line passing through points (-1, 4.5) and (6, 8)?

Mathematics

1 answer:

san4es73 [151]3 years ago

3 0

Answer:

Given points ( -1 , 4.5 ) and ( 6 , 8 )

Step-by-step explanation:

first we should calculate slope 

Slope ( m) 

= ( y2 - y1) / ( x2 - x1) 

= ( 8 - 4.5 ) / ( 6 + 1 )

= 3.5/7

= 0.5

Now the equation of line is given by 

y - y1 = m ( x - x1 )

y - 4.5 = 0.5 ( x + 1 )

( y - 4.5 ) = 0.5 ( x + 1)

y - 4.5 = 0.5x + 0.5

y = 0.5x + 0.5 + 4.5

y = 0.5x + 5

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Ben and Kyle regularly golf together. Every time they play, Ben takes four fewer shots than Kyle. Using one variable, write an e

Rom4ik [11]

Answer:

2x - 4

Step-by-step explanation:

We will have to use one variable.

Let's use "x" and call that number of shots taken by "Kyle"

So, we say:

Kyle takes "x" shots

It is told that Ben takes 4 fewer shots than Kyle, so:

Ben takes "x - 4"

So, the amount of shots both take is the sum of both shown above. So,

Total Shot = x + x - 4

Simplifying:

2x - 4

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3 years ago

Four feet are cut from a 12-foot board. What is the percent decrease in length?

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3 years ago

55.5% repeating as a decimal

netineya [11]

Answer:

55.5 ÷ 100 = 0.555

Step-by-step explanation:

When you ask, "What is 55.5 as a decimal?", we assume you want to know what 55.5 percent is as a decimal. In other words, 55.5 percent converted to decimal.

First, we will tell you why it is useful to know 55.5 as a decimal.

Normally, to calculate 55.5 percent, you would multiply a number by 55.5 percent and then you would take the product of that and divide it by 100 to get the answer.

Instead, you can simply multiply a number by 55.5 as a decimal to get the answer.

55.5 percent means 55.5 per hundred. Therefore, to get 55.5 as a decimal, all you have to do is divide 55.5 by 100 like so:

55.5 ÷ 100 = 0.555

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3 years ago

Read 2 more answers

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Tatiana [17]

Answer: -10x+7

Step-by-step explanation: hope this helps!

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Step-by-step explanation:

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