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2 years ago

PLEASE HELP GEOMETRY!!! What is the value of k?

Mathematics

1 answer:

nydimaria [60]2 years ago

4 0

115 = (4k+5) + (6k+10) when solving that, combine like terms. then use inverse operations.

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Carl buys 1.5 pounds of grapes. The

Umnica [9.8K]

Answer:

$3.51

Step-by-step explanation:

1 pound is $2.39 so divide by 2 and round up to the nearest whole number which is $1.12. Add $1.12(The cost of 0.5 pounds) to $2.39(The cost of 1 pound) to get $3.51 as your total.

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2 years ago

For a sequence an=3/n(n+1) what is the value of a 10

FrozenT [24]

Answer:

$\large\boxed{a_{10}=\dfrac{3}{110}}$

Step-by-step explanation:

Put <em>n = 10</em> to the equation $a_n=\dfrac{3}{n(n+1)}$

$a_{10}=\dfrac{3}{10(10+1)}=\dfrac{3}{10(11)}=\dfrac{3}{110}$

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3 years ago

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The circumference of a circle is 20 pi centimeters what is the diameter of the circle

sasho [114]

Answer:

The answer is C

Step-by-step explanation:

Because that's the answer

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3 years ago

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Write an appropriate direct variation equation if y = 18 when x = 2

Sergeu [11.5K]

Answer:

$y=9x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In this problem we have

y=18 when x=2

Find the value of the constant of proportionality k

$k=\frac{y}{x}$ ----> $k=\frac{18}{2}=9$

therefore

The equation is equal to

$y=9x$

8 0

3 years ago

The model represents an equation. What value of x makes the equation true?

ch4aika [34]

Let's build the equation counting how many x's and 1's are there on each side.

On the left hand side we have 5x's and 8 1's, for a total of $5x+8$

On the left hand side we have 3x's and 10 1's, for a total of $3x+10$

So, the equation we want to solve is

$5x+8 = 3x+10$

Subtract 3x from both sides:

$2x+8 = 10$

Subtract 8 from both sides:

$2x=2$

Divide both sides by 2:

$x=1$

8 0

3 years ago