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3 years ago

Which answer is an equation in point-slope form for the given point and slope? Point: (1,9); Slope:5

Mathematics

2 answers:

Yuri [45]3 years ago

7 0

The answer is indeed C.

point slope form is: y - y1=m(x - x1)

we substitute the values in; y1= 9; x1=1

and of course, the slope is 5

which gives us

y-9=5(x - 1)

JulijaS [17]3 years ago

5 0

I think ur right dood..lol good luck ;)

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3 years ago

Which of the following shows 15 more than a number, written as an algebraic expression?

Nikitich [7]

Answer:

$\large\boxed{15+n}$

Step-by-step explanation:

Hi!

15 more than a number is written as follows:

$\leadsto\boldsymbol{15+n}$ , Option A.

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3 years ago

Esteban has a big jar of change in his room. He has 600 coins total, and 240 of them are pennies. What percentage of the coins a

Thepotemich [5.8K]

<h2>40 % of coins are pennies.</h2>

Step-by-step explanation:

Total number of coins = 600

Total number of pennies = 240

$\texttt{Percentage of the coins are pennies=}\frac{\texttt{Total number of pennies}}{\texttt{Total number of coins}}\times 100\\\\\texttt{Percentage of the coins are pennies=}\frac{240}{600}\times 100\\\\\texttt{Percentage of the coins are pennies=}\frac{240}{6}\\\\\texttt{Percentage of the coins are pennies=}\frac{120}{3}\\\\\texttt{Percentage of the coins are pennies=}40\%$

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4 years ago

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The question is on the attached image :)

olga_2 [115]

The mean can be found by adding the two numbers and dividing by 2

let the second number be y

(x + y)/2 = 1/2x + 1

solve for y

multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2

ANSWER: the second number is 2

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3 years ago