is it possible to prove the lines are parrallel or not parallel? if so, state the postulate or theorem you would use. if not, state cannot be determined.

complete 1, 2, and 3
HELP

Answer:

x = 6

y = 7

Step-by-step explanation:

2x - y = 5

x + y = 13

2x - y = 5

y = 2x - 5

x + y = 13

x + 2x - 5 = 13

3x - 5 = 13

3x = 18

x = 6

y = 2x - 5

y = 2 ( 6 ) - 5

y = 7

Answer:

Step-by-step explanation:

2x - y = 5

x + y = 13

3x = 18

x = 6

6 + y = 13

y = 7

(6,7)

[tex]3x-27=2x+27[/tex]

Given:

Sum of money is shared among Jen, Mary and Lilly in the ratio of 2:3:5.

If Mary gives $27 to Jen, then both of them will have an equal amount of money.

To find:

The money Lilly have.

Solution:

Let Jen, Mary and Lilly have money 2x, 3x and 5x respectively.

Mary gives $27 to Jen, then both of them will have an equal amount of money. It means,

[tex]3x-27=2x+27[/tex]

Isolate variable terms.

[tex]3x-2x=27+27[/tex]

[tex]x=54[/tex]

Now, the money Lilly have is

[tex]5x=5\times 54[/tex]

[tex]5x=270[/tex]

Therefore, Lilly have $270.

Answer:  

x = 9

Explanation:

So when you solve this you get:  2x + 20 = 38

You would then subtract 20 from 38 to isolate the 'x' variable, thus giving you 2x = 18.  From here you would divide by two to completely isolate x.

x = 9.  The variable 'x' equals 9.  If you put the number 9 into the equation in place of 'x' then you would get 38 = 38, therefore proving that x = 9

Answer:

.9

Step-by-step explanation:

9 divided by 10

Answer:

I cannot samajh for your question sovo CNC not explain

Step-by-step explanation:

the original price of the mirror is not known so we will call it x for now.

The discount on the original price is a 40% discount, so it is 40% of x or 0.4x

We are told that the discount is $6, so 0.2x will = 6. So now we will solve the equation for x.

0.4x = 6

x= 6/0.4

x= 15

The original price is $15

The regular price of the mirror is $15.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, a shop owner offered a 40% discount off the regular price of a mirror.

Let the regular price of a mirror be x.

The amount of the discount is $6.

Now, 40% of x=6

40/100 ×x=6

0.04x=6

x=6/0.4

x=15

Therefore, the regular price of the mirror is $15.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ2

Answer:(7x - 34)

Step-by-step explanation:

Answer:

I believe that it is a irrational number.

Step-by-step explanation:

An irrational number is a number that cannot be written as a fraction with a num and denom that aren't equal to 0. These cannot be expressed as repeating decimals. -pi has all these traits, therefore it's irrational.

Answer:

Irrational

Step-by-step explanation:

A rational number, that is a decimal, is a number that can be written as a fraction. Because pi never ends, it can't be written as a fraction so its irrational.

Have a great day, you amazing bean child.

(Yes you are now my bean child. Get over it)

Answer:

$0.07

Step-by-step explanation:

nails = 3.10/155 = 0.02/piece

screws = 7.65/85 = 0.09/piece

0.09 - 0.02 = 0.07

Answer:

When y = 0, x = -14

Thus, the x-intercept of the line is:

(x, y) = (-14, 0)

Step-by-step explanation:

From the table, taking two points

(-94, 24)

(-74, 18)

Finding the slope between (-94, 24) and (-74, 18)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-94,\:24\right),\:\left(x_2,\:y_2\right)=\left(-74,\:18\right)[/tex]

[tex]m=\frac{18-24}{-74-\left(-94\right)}[/tex]

[tex]m=-\frac{3}{10}[/tex]

We know the slope-intercept form of line equation is

[tex]y = mx+b[/tex]

where m is the slope and b is the y-intercept

substituting m = -3/10 and the point (-94, 24) in the slope-intercept to determine the y-intercept 'b'

[tex]24\:=\:-\frac{3}{10}\left(-94\right)+b[/tex]

[tex]\frac{3}{10}\cdot \:94+b=24[/tex]

[tex]\frac{141}{5}+b=24[/tex]

[tex]b=-\frac{21}{5}[/tex]

now

substituting m = -3/10 and y-intercept 'b=-21/5' in the slope-intercept of line equation

[tex]y = mx+b[/tex]

Thus, the equation of the line will be:

[tex]\:y\:=\:-\frac{3}{10}x-\frac{21}{5}[/tex]

We know that the x-intercept can be determined by setting y = 0, and determining for x. so,

[tex]\:0\:=\:-\frac{3}{10}x-\frac{21}{5}[/tex]

switch sides

[tex]-\frac{3}{10}x-\frac{21}{5}=0[/tex]

[tex]-\frac{3}{10}x=\frac{21}{5}[/tex]

[tex]-3x=42[/tex]

divide both sides by -3

[tex]\frac{-3x}{-3}=\frac{42}{-3}[/tex]

[tex]x=-14[/tex]

so when y = 0, x = -14

Thus, the x-intercept of the line is:

(x, y) = (-14, 0)

Answer:

by stady hard

Step-by-step explanation:

like by do exercise

work sheets

and by ask help a teacher or parents

Answer:

Step-by-step explanation:

we will replace f(x) with y

y=8x-5  

x=8y-5  we solve for y

8y-5=x

y=x/8 +5/8

f^-1=x/8 +5/8

Answer:

I think it -5

Step-by-step explanation:

Answer:

c i think

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Yes. As long as it is y = mx+b.

Answer:

The correct option is;

C. (1.6, 1.3)

Step-by-step explanation:

Given that at x = 1.5 the y-values of both equations are y = 1.5 and y = 1 respectively

The x-value > The y-value

The difference in the y-values = 1.5 - 1 = 0.5

At x = 1.6 the y-values of both equations are y = 1.2 and y = 1.4 respectively

The x-value > The y-value

The difference in the y-values = 1.2 - 1.4 = -0.2

At x = 1.7 the y-values of both equations are y = 0.9 and y = 1.8 respectively

The x-value > The first y-value and the x-value < the second y-value

The difference in the y-values = 0.9 - 1.8 = 0.9

Therefore, the approximate y-value can be found by taking the average of both y-values when x = 1.6 where the difference in the y-values is least as follows;

Average y-value at x = 1.6 = (1.2 + 1.4)/2 = 1.3

Therefore, the best approximation of the exact solution is (1.6, 1.3)

By calculation, we have;

-3·x + 6 = 4·x - 5

∴ 7·x = 11

x = 11/7 ≈ 1.57

y = 4 × 11/7 - 5 ≈ 1.29

The solution is (1.57, 1.29)

Answer:

The interest is $300 and the amount is $7800

Step-by-step explanation:

Given

P = $7,500

i = 2​% = 0.02

t = 2 years

Using the formula

I = P × i × t

I = 7,500 × 0.02 × 2

I =  $300

Thus, Edward earned an interest =  $300

The amount in his new account bank can be calculated using the formula:

A = P + I

Since P = $7,500  and I = $300

A = P + I

  = 7,500 + 300

  = $7800

Thus, the new amount in his bank account = A = $7800

Therefore,

Answer:

A. $260

Step-by-step explanation:

bob = $250

diana = 4/5 of bob

diana = 4/5 x $250

diana = $200 = 100%

30 % inc means she added 30% on top of what she had already which was 100%

30% + 100& =  130%

if 100 % = %200

130% = 130% x $200

                 100%

= $260

Answer:

17

Step-by-step explanation:

This is an isosceles triangle. However, it doesn't really matter since ALL TRIANGLES HAVE A SUM OF 180 DEGREES.

Now that you know that, you can add up all of the angles and set it equal to 180.

[tex](x+17) + (6x+10) + (4x-34)=180[/tex]

Now solve for x

[tex](x+17) + (6x+10) + (4x-34)=180\\11x-7=180\\11x=187\\x=17[/tex]

The value of x is 17.

Answer:

795.596≤u≤804.403

Step-by-step explanation:

Confidence interval is expressed using the formula;

CI = xbar ± (z*s/√n)

xbar is the sample mean

z is the z score at 98% confidence

s is the standard deviation

n is the sample size

Given

xbar = 800

z = 2.33

s = 10

n = 28

Substitute into the formula;

CI =800 ± (2.33*10/√28)

CI = 800 ± (2.33*10/5.2915)

Ci = 800± (2.33* 1.8898)

CI = 800 ± 4.4033

CI = (800-4.4033, 800 + 4.4033)

CI = (795.596, 804.403)

Hence an interval estimate of u with 98% confidence is expressed as

795.596≤u≤804.403

Answer:

the answer is t-x equals tx

Answer:

12%

Step-by-step explanation:

3.499-3.079 is 0.42

0.42/3.499 is  about 12%

Hope this helps!

And by the way, its a decrease.

9514 1404 393

Answer:

  EF = 5

Step-by-step explanation:

Given:

  EF = 6x -31

  BD = 64 -9x

  BD = 2·EF

Find:

  EF

Solution:

  BD = 2·EF

  64 -9x = 2(6x -31) . . . . substitute the given expressions

  64 -9x = 12x -62  . . . .  eliminate parentheses

  126 = 21x . . . . . . . . . . . add 62+9x

  x = 6 . . . . . . . . . . . . . . . divide by 21

Now the length of EF is ...

  EF = 6x -31 = 6(6) -31

  EF = 5

Answer:

8 bottles of apple juice  + 4 bottles of orange juice.

Step-by-step explanation:

Okay, again here's what we know:

- Orange Juice is $1.75 per bottle

- Apple Juice is $1.00 per bottle.

Now, if we spend 15 dollars- we need to first find out the orange juice to be able to make it an even. So 1.75 times 4 gets us an even 7 dollars. Now that we have that information, we know that if we do another 4 bottles the price would be okay, but the amount of bottles would not be.

So, then we'll add in the rest in dollars as the apple juice. We have 4 juices but we need 12. So, 12-4=8. Therefor, you need 8 bottles of AJ and 4 bottles of OJ.

I hope this helps and best of luck on your work! Happy Holidays, stay safe!

Answer:

$34.88

Step-by-step explanation:

If the discount is 20%, then the sale price is 80% of the full (original) cost:

0.80($40.00) = $32.

Sam has to pay 9% sales tax on this $32.  The total cost of his order would then be 1.09($32) = $34.88.  If desired, you could write this as the equivalent $32 + 0.09($32).

Answer: 0.55

Step-by-step explanation:

16.5 ÷ 30 = 0.55

In conclusion, 0.55 is 16.5 of 30.

Hope this helps!

Answer:

1/15

Step-by-step explanation:

1/3 x 1/5

Answer:

the length of the hypotenus is 20km

Answer:

By estimating with whole numbers, 4 x 7 = 28, helps me know that the decimal point should be placed so that the answer is close to 28.

Step-by-step explanation:

Can I have brainliest? TYSM

You round:

3.6 to 4

and

7.4 to 7

4 x 7 = 28 approximately