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miss Akunina [59]
3 years ago
15

Please help. I don't understand how to do this. I need this asap. please

Mathematics
1 answer:
Schach [20]3 years ago
6 0

9514 1404 393

Answer:

  r = 1/9

Step-by-step explanation:

First of all, solve the equation for r:

  y = rx

  y/x = r . . . . . . . divide by x

__

Since r is a constant, it will be the same for any corresponding pairs of x and y. It is convenient to choose both x and y as integers, as in the third table entry.

  r = y/x = 5/45

  r = 1/9 . . . . . . . . . reduced fraction

_____

<em>Additional comment</em>

It is not a bad idea to check to see that this works with other values of x and y. For the first line of the table, we have x = 11:

  y = rx = (1/9)(11) = 11/9 = 1 2/9 . . . . matches the table value

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Ordering the Angle Measures of a Triangle
mel-nik [20]

Answer:

  C, B, A

Step-by-step explanation:

The sides in order from shortest to longest are ...

  AB = m-2

  AC = m

  BC = m+4

The angles opposite these sides will be in order, smallest to largest. The angle opposite is the one whose letter is <em>not</em> in the line segment name.

  C, B, A

7 0
3 years ago
When you make the circle bigger or smaller, which number of the standard equation for the circle centered at the origin changes?
Len [333]
I think the correct answer from the choices listed above is option C. <span>When you make the circle bigger or smaller, it is the radius of the standard equation for the circle centered at the origin changes. Hope this answers the question. Have a nice day.</span>
6 0
3 years ago
Read 2 more answers
A/-6 + 8 = 12. a = <br>Please help!!! Thanks so much! <br><br>~kweenie~
irina [24]

Answer:

a = -24

Step-by-step explanation:

-a/6 +8 = 12

Subtract 8 from each side

-a/6 +8-8 = 12 -8

-a/6 = 4

Multiply by -6 on each side

-a/6 * -6 = 4*-6

a = -24

8 0
3 years ago
Cynthia Besch wants to buy a rug for a room that is 20 ft wide and 35 ft long. She wants to leave a uniform strip of floor aroun
My name is Ann [436]

Answer:

18ft wide and 33 ft long

Step-by-step explanation:

We are told in the question that:

Cynthia Besch wants to buy a rug for a room that is 20 ft wide and 35 ft long.

The Area of the carpeting she must have = 594 ft²

To solve for this, we have:

Length × Width = Area of a rectangle

594ft² = Length × Width

594ft² = (20 - x) (35 - x)

594 = 700 - 20x - 35x + x²

594 = 700 - 55x + x²

Collect like terms

x² - 55x + 700 - 594

x² - 55x + 106

We factorise

x² - 2x - 53x + 106

(x² - 2x) -(53x + 106)

x(x - 2) -53(x - 2)

(x - 2)(x - 53)

x - 2 = 0, x = 2

x - 53 = 0, x = 53

We choose the least value for x

Hence, x = 2

Length = 20 - 2 = 18ft

Width = 35 - 2 = 33ft

The dimensions the rug should have is 18ft by 33ft, meaning 18ft wide and 33 ft long

8 0
3 years ago
You deposit $500 into a bank account that pays 2% simple interest. You leave the money in the account for 3 years and no additio
Natasha_Volkova [10]

\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$500\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ t=years\dotfill &3 \end{cases} \\\\\\ I=(500)(0.02)(3)\implies I=30~\hfill \stackrel{\textit{total amount in the account}}{500+30\implies 530}

4 0
3 years ago
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