I dont understand do I multiply four to get the area?

Answer:

8x+12y=120

Step-by-step explanation:

i took the test

9514 1404 393

Answer:

  13/8

Step-by-step explanation:

Put the numbers in the formula and do the arithmetic.

  [tex]\dfrac{4\dfrac{2}{3}-\left(-1\dfrac{5}{6}\right)}{-7\dfrac{3}{4}-(-11.75)}=\dfrac{6.5}{4}=\boxed{\dfrac{13}{8}}[/tex]

Answer:

BiG ChUnGuS  moo

Step-by-step explanation:

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Work Shown:

a:b = 1:3

a/b = 1/3

a*3 = b*1 ... cross multiply

3a = b

b = 3a

Since b is a one digit number, this means that the largest it can get is 9

[tex]b \le 9\\\\3a \le 9\\\\a \le \frac{9}{3}\\\\a \le 3[/tex]

The largest possible value of 'a' is 3

Answer:

YES

Step-by-step explanation:

The criterion for formation of a triangle is that the sum of any 2 sides should be greater than or equal to the third side

So, we will test it for all 3 sides

7.4 + 12.5 ≥ 19.9

TRUE

12.5 + 19.9 ≥ 7.4

TRUE

7.4 + 19.9 ≥ 12.5

TRUE

Therefore, the segments with the sides: 7.4 , 12.5 and 19.9 do form a triangle

Answer:

YES

Step-by-step explanation:

Answer:

3/4 and 2/3....different denominators.....common denominator is 12

Answer:

11

Step-by-step explanation:

11 + 10 = 21

Answer:

-1.9

Step-by-step explanation:

I rounded it to the tenth

Answer:

If M<6=72

Step-by-step explanation:

Then What is M

M=72/6 =12

so M<7=12 by 7=84

therefoe M<7=84

The measure of angle 7 in the system created by two non-parallel lines is 108°.

The supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles. There are two types of supplementary angles.

A line that is crossed by a non-parallel line produces four pairs of extra angles, according to geometry. If and only if two angles are close to one another and the sum of their measures is 180 degrees, then those angles are supplementary.

Then, m ∠ 6 + m ∠ 7 = 180° = 72° + m ∠ 7 = 180°.

So, m ∠ 7 = 108°.

Therefore, the measure of angle 7 in the system created by two non-parallel lines is 108°.

Learn more about the supplementary angles here:

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The question seems to be incomplete the correct question would be

If m∠6=72 degrees, then Find m∠7

Answer:

184

Step-by-step explanation:

16+y/8 =25

16+y=25 X 8

16 + y =200

y=200-16

y = 184

Answer:

$390    you divide 520 by 4 so 520/4=130   now we subtract 130 from 520, 520-130=390

Step-by-step explanation:

Solving this question requires basic arithmetic formula and fractions.

New weekly income = $390

Let's call the number of hours kim works weekly as "x"

If she reduces this number of hours by one-fourth and her current weekly income is $520, then it means the amount to be deducted is;

[tex]\frac{1}{4}[/tex] × $520 = $130

Thus, her new weekly income will be;

$520 - $130 = $390

Read more at; brainly.com/question/11407386

Answer:

25

I hope this helps.

Answer:

Amy worked 25 hours

Step-by-step explanation:

To first start off we have the equation 12.5h= 312.5

from here, we divide by 12.5 to have h by itself inorder to find how many hours she worked as h stands for hours.

Once you divide 312.5 by 12.5 you get h=25

Once again, the h stands for hours, so this means that Amy worked 25 hours, and that for one hour she earned 12.5 dollars.

If you want to find how much money she made for example in 5 hours, all you have to do is plug in the 5 for h and multiply it by 12.50 to get how much she earned in that certain amount of hours!

Hope this helps! If you have any questions, feel free to ask! :)

Answer:

13

Step-by-step explanation:

Just substitute the x with a 4

4² - 4 + 1

16 - 4 + 1

12 + 1

Answer:

Slope:  1

Step-by-step explanation:

A variable is always worth 1 if there is no number in front of it. In this case there is no number, so just draw in a one.

Answer:

A: Slope = Positive

Step-by-step explanation:

Step 1:

y = mx + b       Slope Intercept Form

Step 2:

y = x - 1     Equation/Given

Step 3:

Slope = 1

Answer:

A: Slope = Positive

Since there are no symbols or numbers in front of the x it means that the slope is x and the slope is positive.

Hope This Helps :)

Step-by-step explanation:

Taking log both sides :

[tex]( \frac{x + y}{4} ) + \tan( ln( \frac{x}{y} ) ) = \sqrt{y} [/tex]

Differentiate both sides w.r.t x :

[tex] \frac{1}{4} + \frac{1}{4} \frac{dy}{dy} + {sec}^{2} ( ln\frac{x}{y} ) + \frac{y}{x} + \frac{1}{y} - \frac{x}{ {y}^{2} } = \frac{1}{2 \sqrt{y} } \frac{dy}{dx} [/tex]

Rearranging :

[tex]( \frac{4 - 2 \sqrt{y} }{8 \sqrt{y} }) (\frac{1}{4} + {sec}^{2} ( ln\frac{x}{y} ) + \frac{y}{x} + \frac{1}{y} - \frac{x}{ {y}^{2} }) = \frac{dy}{dx} [/tex]

(You can rearrange it further)

Answer:

500 times

Step-by-step explanation:

3000/6

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Work Shown:

cos(angle) = adjacent/hypotenuse

cos(45) = b/c

c*cos(45) = b

c = b/cos(45)

In the third step, I multiplied both sides by c. Afterward, I divided both sides by cos(45) to isolate c.

Answer:

ans: b/cos45

Step-by-step explanation:

as we know that cos45=b/c

then, c/b=1/cos45

therefore, c=b/cos45

Step-by-step explanation: Tip you should down load an app called Photomath. You take a picture of your math problem and it tells you the answer tells you the steps on how to do it. It only works for math number problems only not word problems. I hope this helps :)

1. perimeter = 4 and area = 1

2. permeter = 8 and area = 4

3. perimeter = 12 and area = 9

4. perimeter = 16 and area = 16

5. perimeter = 20 and area = 25

Answer:

0.16666666666

Answer:

0.16666667

Step-by-step explanation:

Answer:

y = 65 degrees

Step-by-step explanation:

(this is what i remember from geometry at least so let me know if i got anything wrong)

2x+25 and 3x-10 are opposites which means they are equal to each other.

2x+25 = 3x-20 get the x values on the same side by subtracting 2 from both sides

25 = x-20 to get the x value alone add 20 to both sides

45 = x

now you can plug in x to either equation to find out what their degree is

2(45)+25 = 115 degrees

and since this equation and y are on the same line you can subtract 115 from 180 (a line is equal to 180 degrees) to find y

180-115 = 65 degrees

Each of the pairs of opposite angles made by two intersecting lines is called a vertical angle. The value of the variables x and y are 35 and 85, respectively.

Each of the pairs of opposite angles made by two intersecting lines is called a vertical angle.

The angle measuring (2x+25)° and (3x-10)° are vertical angles. Therefore, we can write,

(2x + 25) = (3x - 10)

2x + 25 = 3x - 10

25 + 10 = 3x - 2x

x = 35

Also, in the given image the angle measuring (2x + 25)° and y° are supplementary angles, therefore, we can write,

(2x + 25)° + y° = 180°

2x + 25 + y = 180°

Substitute the value of x,

2(35) + 25 + y = 180

70 + 25 + y = 180

95 + y = 180

y = 85°

Hence, the value of the variables x and y are 35 and 85, respectively.

Learn more about Vertical angle here:

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Answer:

3 cups

Step-by-step explanation:

1 1/2 + 1 1/2 = 3

Answer:

1

Step-by-step explanation:

since 1*1 will always be 1, 1 raised to any power will be 1.

Answer:

Step-by-step explanation:

Simplifying

3x + 5 = 3x + 7

Reorder the terms:

5 + 3x = 3x + 7

Reorder the terms:

5 + 3x = 7 + 3x

Add '-3x' to each side of the equation.

5 + 3x + -3x = 7 + 3x + -3x

Combine like terms: 3x + -3x = 0

5 + 0 = 7 + 3x + -3x

5 = 7 + 3x + -3x

Combine like terms: 3x + -3x = 0

5 = 7 + 0

5 = 7

Solving

5 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer: 0.56

Step-by-step explanation:

1.12 / 0.56

Half of 1 is .50 and half of .12 is .06

.50 + .06 = .56

idkStep-by-step explanation: