I will give brainlyest

Answer:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.

Step-by-step explanation:

Answer:

45 minutes, hope this helps

Step-by-step explanation:

Answer:

45 minutes.

Step-by-step explanation:

Set up a ratio.

6 keychains: 30 minutes

divide both sides of the ratio by 6

1 keychain: 5 minutes

multiply both sides of the ratio by 9

9 keychains: 45 minutes

It will take him 45 minutes.

hello goodbye believe 195

Answer:

5/10 pounds just add 1 + 4 ( i think )

Answer:

42/10 or 4 2/10 is the answer

Step-by-step explanation:

Hope this Helps! :)

Answer:

12. parallel, 13. perpendicular

Step-by-step explanation:

Find the slope of both lines

AB:(6-3)/(2--2)=3/4

CD:(3-0)/(3--1)=3/4, the slope is the same so the lines are paralell

2. DO the same thing

AB:(4-2)/(5-0)=2/5

CD:(3-8)/(3-1)=-5/2, the slopes are opposite inverses so they are perpendicular

Answer:

1. parallel

2. perpendicular

Step-by-step explanation:

a.

[tex]y = kx \\ 21 = k \times 3 \\ 21 \div 3 = \frac{(k \times 3)}{3} \\ 7 = k[/tex]

b.

[tex]y = kx \\ 24 = k \times 4 \\ \frac{24}{4} = \frac{(k \times 4)}{4} \\ 6 = k[/tex]

Answer:

4.50

Step-by-step explanation:

If you use x for burgers and y for fries:

1) 3x+2y=17.50

2) 2x+3y=15

You can then do a simultaneous equation by multiplying the first equation by 1.5 to cancel out the y (fries) to get x (burgers) on its own

1) 4.5x+3y=26.25

2) 2x+3y=15

By subtracting the two equations you get 2.5x=11.25

Then divide 11.25 by 2.5, you get x =4.5 so a burger is 4.50

A burger cost 4.50.

Let the cost of a burger be x.

Let the cost of a fries be y.

Since three burgers and two fries cost 17.50, this will be:

3x + 2y = 17.50 ......... i

Since two burgers and three fries cost 15.00, this will be:

2x + 3y = 15.00 .......... ii

Therefore, both equations will be:

3x + 2y = 17.50 ...... i

2x + 3y = 15.00 ....... ii

Multiply equation i by 2

Multiply equation ii by 3

6x + 4y = 35.00 ....... iii

6x + 9y = 45.00 ....... iv

Subtract equation iii from iv

5y = 10.00

y = 10.00/5

y = 2.00

Therefore, the cost of a frie is 2.00

Since the value of a frie has been gotten, it can be put into any of the equation. Using the equation:

3x + 2y = 17.50

3x + 2(2.00) = 17.50

3x + 4.00 = 17.50

3x = 17.50 - 4.00

3x = 13.50

x = 13.50/3

x = 4.50

Therefore, a burger cost 4.50.

Answer:

1 3/14

Step-by-step explanation:

1. You want to turn the fractions into mixed numbers.

2. 4 1/4 is equal to 17/4

3. 3 1/2 is equal to 7/2

4. I have a fraction calculator and got 1 and 6/28.

5. To solve it yourself, flip 7/2 to make it 2/7 and change from division to multiplication.

Looked like: [tex]\frac{17}{4}[/tex] ÷ [tex]\frac{7}{2}[/tex]

Looks like: [tex]\frac{17}{4}[/tex] · [tex]\frac{2}{7}[/tex]

17 times 2 is 34 and 4 times 7 is 28. Leaving us with 34/28.

Now just simplify and get an answer of 1 and 3/14.

Hope this helps! Please vote me as Brainliest. Let me know if you need more of an explanation. Remember, cheating is never the answer. Try your best before you seek answers. Hope it's not too late. Good luck with whatever you are doing! Have an amazing day!

Answer:

The first one is x=-y-2z-7

The second one is x=-1/3y + 1/3z + -4/3

The third one is x= 3y + 2z + 17

Answer:

62%

Step-by-step explanation:

31/50 is also equal to 62/100 (if we multiply the numerator and denominator by 2). 62/100 is 62%.

Answer:

62%

Step-by-step explanation:

31/50=0.62.

0.62 as a percent would be 62%

Answer:

yes it can be represented by 1by2×5

Answer:

yes

Step-by-step explanation:

because it can

Answer:

Area of the shaded region = 3.46 square units

Step-by-step explanation:

Measure of the interior angle of a regular polygon = [tex]\frac{(n - 2)\times180}{n}[/tex]

From the picture attached,

Number of sides of the given polygon 'n' = 6

Interior angle (∠BAF) of the given polygon = [tex]\frac{(6 - 2)\times 180}{6}[/tex]

                                                                       = 120°

Measure of ∠BAC = [tex]\frac{120}{4}[/tex]

                              = 30°

Now we apply sine rule in ΔAGB,

sin(30°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

            = [tex]\frac{BG}{AB}[/tex]

BG = AB[sin(30°)]

     = [tex]2\times \frac{1}{2}[/tex]

     = 1

By applying cosine rule in ΔABG,

cos(30°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

              = [tex]\frac{AG}{AB}[/tex]

AG = AB[cos(30°)]

     = [tex]2\times \frac{\sqrt{3} }{2}[/tex]

     = [tex]\sqrt{3}[/tex]

AC = 2(AG)

     = 2√3

Area of ΔABC = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]

                       = [tex]\frac{1}{2}(AC)(BG)[/tex]

                       = [tex]\frac{1}{2}(2\sqrt{3} )(1)[/tex]

                       = [tex]\sqrt{3}[/tex]

Area of the shaded region = Area of ΔABC + Area of ΔFED

                                             = 2(Area of ΔABC)

                                             = 2√3

                                             = 3.46 square units

Answer:

x = 58

Step-by-step explanation:

trust me i got the same question today on khan and apparently i accidently pressed next

so...

the person that answered first had the right set up but miscalculated

anyway...

you have to subtract on both sides because 32 was positive and two different signs would be 0:

x+32 = 90 degrees

  -32   -32

then 32 and -32 gets crossed out and then you do

90-32 = 58

you subtract because different signs...

therefore:

x=58

here's another way to solve it:

We simplify the equation to the form, which is simple to understand

x+32=90

We move all terms containing x to the left and all other terms to the right.

+1x=+90-32

We simplify left and right side of the equation.

+1x=+58

We divide both sides of the equation by 1 to get x.

x=58

Hope this helps

brainiest would be appreciated :)

Answer:

Incorrect.

Step-by-step explanation:

My friend is incorrect because the input values was plotted along the y-axis while the output values were plotted along the x-axis, which makes the graph totally incorrect.

The right way to plot the graph is to plot the input-values on the x-axis, while the corresponding output values should be plotted on the y-axis.

Answer:

The correct answer is,

[tex]x = 7[/tex]

Answer:

x= 7

Step-by-step explanation:

3(2x‐1) + 7 = 46

6x‐3+7= 46

6x+4= 46

6x = 42

x=42/6

x=7

Answer:

its 1 4/5 = 2/5 + r

Step-by-step explanation:

The distance in miles that Madison needs to run is [tex]1 \frac{2}{5}[/tex] miles.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, Madison Plans to walk and run a total of [tex]1\frac{4}{5}[/tex] =9/5 miles on a treadmill.

Let r be the distance in miles that Madison needs to run.

Now, the equation is

2/5 +r =9/5

r= 9/5 - 2/5

r =7/5

r = [tex]1 \frac{2}{5}[/tex] miles

Therefore, the distance in miles that Madison needs to run is [tex]1 \frac{2}{5}[/tex] miles.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Answer:

d is 6,6 and 4,is -94 and plus 8

Step-by-step explanation:

Answer:

15973

Step-by-step explanation:

Answer: 15,589 + 384 = 1,5973

Step-by-step explanation:

Answer:

Step-by-step explanation:

The standard form of linear equation of a line is expressed as;

y = mx+c

m is the slope

c is the y - intercept

Compare with the given equation

mx = x

m = x/x

m = 1

Hence the slope of the line is 1

Answer:

A i think

Step-by-step explanation:

Answer:

42

Step-by-step explanation:

Area of a rectange = bh so 98=14x

98 divided by 14 = 7

Perimeter= 2x+2y

so 2x+2y -> 28+14=42

1)4÷30=7.5                                                2)  5÷10=2

7.5×4=30 (a)x=7.5                                           2×5=10      x=2

pls i need brainiest

Answer: The answer is D

Step-by-step explanation:

Answer:

D) Cities with football teams tend to be large, which means they have more reported small crimes.

Step-by-step explanation:

Confounding refers to the phenomenon in which an apparent relationship between two variables is actually caused by the influence of a third, confounding variable. In this case, it is possible that the relationship between the presence of a football team and the number of reported small crimes is confounded by the size of the city. It is possible that cities with football teams tend to be larger, and larger cities generally have more reported small crimes, regardless of whether they have a football team. This could explain the apparent relationship between football teams and small crimes. It is important for researchers to consider and control for potential confounding variables in order to accurately interpret the relationships between variables in their study.

Answer:

5/6 is greater

Step-by-step explanation:

Answer:

Step-by-step explanation:

A remote interior angle is one that shares only 1 leg with the exterior angle. Every triangle has 2 remote interior angles for each exterior angle.

<1 is a remote interior angle

81 is 1 remote interior angle

127 is an exterior angle

<1 + 81 = 127            Subtract 81 from both sides

<1 = 127 - 81

<1 = 46

Answer: x=−10   ..,.,.,.,.,.,.,..,.,.,

Answer:

Total cost of All fee = $10,000

Step-by-step explanation:

Given:

Mortgage amount = $400,000

Origination fee = 0.2%

Intangible tax = 0.4%

Discount point = 1.9

Find:

Total cost of All fee

Computation:

Total cost of All fee = (Mortgage amount)(Origination fee) + (Mortgage amount )(Intangible tax) + (Mortgage amount )(Discount point)

Total cost of All fee = ($400,000)(0.2%) + ($400,000)(0.4%) + ($400,000)(1.9/100)

Total cost of All fee = $800 + $1,600 + $7,600

Total cost of All fee = $10,000