Find the value of x for which l || m

2(n+5)=-2 <br><br> I need the steps

Eva8 [605]

Answer:

n = -6

Step-by-step explanation:

2 ( n + 5 ) = -2

First, solve the brackets.

2n + 10 = -2

Now take 10 to the right side.

2n + 10 -10 = -2 - 10

2n = -12

Then divide both sides by 2.

$\frac{2n}{2} =\frac{-12}{2}$

And now you'll the value of n.

n = ( -6 )

6 0

2 years ago

Roger is x centimeters tall and Olivia is y centimeters tall. Their oldest sister, Isabella, is 25 centimeters shorter than the

sukhopar [10]

Answer:

Step-by-step explanation:

Let the height of their oldest sister isabella be z centimeters. Roger is x centimeters tall and Olivia is y centimeters tall.

If their oldest sister, Isabella, is 25 centimeters shorter than the double of the sum of Roger and Olivia's height, this can be expressed as shown;

First let us get the sum of Roger and Olivia's height;

The sum of Roger and Olivia's height = (x+y)cm

The double of the sum of their ages = 2* (x+y)cm = 2(x+y)cm

Now if Isabella, is 25 centimeters shorter than the double of the sum of their ages, the expression will be [2(x+y)-25]

<em>Since the height of isabella is z, the expression that model isabella's height will be expressed as z =[2(x+y)-25]cm</em>

3 0

3 years ago

Cody has 7/8 pound of cheese. he uses 1/7 since there are 16 ounces in a pound how much is left

bagirrra123 [75]

Step One
Find the fraction left.
Starting amount = 7/8 pound
Used amount = 1/7 of a pound.

The common denominator of these two fractions is 8 * 7 = 56

Amount left = amount started with - amount used
Amount left = 7/8 - 1/7
Amount left = $\frac{7 *7 }{8 * 7} - \frac{1 * 8}{7 * 8}$
Amount left = $\frac{49 }{56} - \frac{ 8}{56}$
Amount left = 41 / 56 pounds

Step Two
Convert the Answer to ounces.

Ounces = (41/56) * 16
Ounces = 11.71 ounces almost 11 3/4

8 0

3 years ago

How to I find the estimate of 25% of 230

MArishka [77]

The key to understanding the question is to keep the details at the fore.

Percentage = 25%

Amount = 230

Our answer to the estimation is given by the formula:

$\begin{gathered} \text{Percentage }\cdot\text{ Amount = 25\% }\cdot\text{ 230} \\ =\frac{25}{100}\cdot230=\frac{25\cdot230}{100} \\ =57.5 \end{gathered}$

8 0

11 months ago

What is the answer? What does the symbol mean??

madam [21]

Answer:

6 or -6

Step-by-step explanation:

The symbol √ is the square root symbol.

The square root of a number is a number that when you multiply it by itself you get the first number.

For example:

The square root of 9 is 3 since 3 times itself, 3 × 3, is 9.

The square root of 9 is also -3 since (-3) × (-3) is 9.

The question is asking for the positive and negative square roots of 36.

What number multiplied by itself is 36?

The answer is 6 since 6 × 6 = 36 and -6 × -6 = 36

Answer: 6 or -6

3 0

2 years ago