PLZZZ HELPP ILL GIVE BRAINLISTT

Answer:

a. 5cm

Step-by-step explanation:

r. m+m+n+n= 34

t. m+n+n+1=30

r. 2m + 2n =34

t. m + 2n + 1 = 30

after multiple by negative t row

t. -m -2n -1 = -30

and combine the 2 rows

2m -m +2n - 2n -1 = 34 - 30

m - 1 = 4

and we add one to each side of the operation

m - 1 + 1 = 4 + 1

m = 5

The value of m is 5 cm. Therefore, option A is the correct answer.

The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.

Given that, the perimeter of the rectangle is 34 cm.

We know that, the formula to find the perimeter of rectangle is 2(Length+Width)

From the figure, 2(m+n)=34

m+n=17 -------(I)

The perimeter of the triangle is 30 cm.

From the figure, m+n+n+1=30

m+2n=29 -------(II)

From equation (I), we have m=17-n

Put m=17-n in equation (II), we get

17-n+2n=29

n=12 cm

Substitute n=12 in equation (I), we get

m=5 cm

The value of m is 5 cm. Therefore, option A is the correct answer.

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Answer:

b is the right answer

Step-by-step explanation:

Answer:

if you are already cheating use desmos but it is C

Step-by-step explanation:

plz give brainliest

Answer:

4

Step-by-step explanation:

Hope that helps!

9514 1404 393

Answer:

  4

Step-by-step explanation:

Substitute the given value for y, then do the arithmetic.

  [tex]\dfrac{y}{4}-2y-3\\\\=\dfrac{-4}{4}-2(-4) -3 \qquad\text{use $y=-4$}\\\\=-1+8-3=7-3=\boxed{4}[/tex]

Answer:

The common denominator of the fraction 3/4 and 5/6 is 12

Step-by-step explanation:

Because it is the lowest number that both 4 and 6 can reach by multiplying with whole numbers.

Answer:.OA. -4

Step-by-step explanation:

Answer:

12°

Step-by-step explanation:

a right triangle implies there is an angle that is 90°

another angle is 78°

the third angle is 180 - (90 + 78)  =  180 - 168  = 12°

Answer:

7 TIMES

Step-by-step explanation:

BECAUSE THERE IS 7 DAYS IN A WEEK

The number of times dinner was bought is 4.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Money earned and spent is given below.

Hourly pay = $14

Weekly allowance = $21

Dinner = $12

Bus ride = $2.50

Kevin earned in 3 hours.

= 3 x 14

= $42
Allowance for 1 week = $21

Spent on bus ride = 6 x 2.50 = $15

Now,

Kevin remaining amount = 0

42 + 21 - 15 - x = 0

Where x is the amount spent on dinner.

63 - 15 - x = 0

x = 48

Amount spend on dinner = $48

The number of dinners.

= 48 ÷ 12

= 4

Thus,

Dinner was bought 4 times.

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Answer:

The value of k is -4 and the equation of the line is [tex]y =-\frac{1}{2}\cdot x +10[/tex].

Step-by-step explanation:

The equation of the line is defined by the following formula:

[tex]y = m\cdot x + b[/tex] (1)

Where:

[tex]x[/tex] - Independent variable.

[tex]y[/tex] - Dependent variable.

[tex]b[/tex] - y-Intercept.

[tex]m[/tex] - Slope.

In addition, the slope of the equation of the line ([tex]m[/tex]) can be known from two distinct points:

[tex]m = \frac{y-y_{o}}{x-x_{o}}[/tex] (2)

Where [tex]x_{o}[/tex] and [tex]y_{o}[/tex] are the coordinates of the reference point.

By applying (2) in (1), we derive the resulting expression:

[tex]y = \frac{y-y_{o}}{x-x_{o}}\cdot x + b[/tex]

[tex]y\cdot (x-x_{o}) = (y-y_{o})\cdot x + b\cdot (x-x_{o})[/tex]

[tex]x\cdot y -y\cdot x_{o} = x\cdot y -x\cdot y_{o}+b\cdot x -b\cdot x_{o}[/tex]

[tex](b-y)\cdot x_{o} = b\cdot x -x\cdot y_{o}[/tex]

[tex](b-y)\cdot x_{o} +x\cdot y_{o} = b\cdot x[/tex] (3)

If we know that [tex]b = 10[/tex], [tex]x = 2[/tex], [tex]y = 9[/tex], [tex]x_{o} = k+10[/tex] and [tex]y_{o} = -2\cdot k -1[/tex], then the value of [tex]k[/tex] is:

[tex](10-9)\cdot (k+10)+2\cdot (-2\cdot k -1) = (10)\cdot (2)[/tex]

[tex]k+10 -4\cdot k -2 = 20[/tex]

[tex]-3\cdot k +8 = 20[/tex]

[tex]-3\cdot k = 12[/tex]

[tex]k = -4[/tex]

The value of the slope is:

[tex]m = \frac{9-7}{2-6}[/tex]

[tex]m = -\frac{1}{2}[/tex]

The equation of the line is [tex]y =-\frac{1}{2}\cdot x +10[/tex].

Answer:

(-3, 0) and (-5, 0)

Step-by-step explanation:

[character limit thing]

Answer:

B Trapezoid

Step-by-step explanation:

A trapezoid has 2 parallel sides the top and bottom but also the sides.

Answer:

75% of the car did not receive a oil change

Answer:

42 dollars for 6 hrs means that each hour, he gets 7 dollars, assuming that this is a proportional relationship.

56-42=14, he needs 14 more dollars

14/7=2

2 more hrs

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

3x - 4 = 8

3x - 4 + 4 = 8 +4

3x = 12

x = 4

Answer:

h(x) = (1/4)x - 2 which is choice A

Step-by-step explanation:

Replace f(x) with y. Then swap x and y. Lastly, solve for y to get the inverse.

f(x) = 4x+8

y = 4x+8

x = 4y+8

x-8 = 4y

4y = x-8

y = (x-8)/4

y = x/4 - 8/4

y = (1/4)x - 2

h(x) = (1/4)x - 2

Answer:

theres no picture so how will we know

Step-by-step explanation:

post the picture first

Answer:

See below.

Step-by-step explanation:

The unit rate is the cost per thing. You just divide the cost by the amount:

$7.38/18 ounces = $0.41/1 ounce

$15.39/27 ounces = $0.57/1 ounce

Therefore, $7.38 for 18 ounces is the better option.

Answer:

It will take 8 men 5 days

Answer:

[tex]\frac{xy}{2}[/tex]

Step-by-step explanation:

Answer:

Stratified Random sampling

Step-by-step explanation:

When a random observations are selected from a number of individual groups in a particular population, the type of sampling technique is called Stratified Random sampling. Stratified Random sampling begins with the partitioning or splitting or a population into subgroups. A number of random selection are then made from each of the subgroups to form a collection of larger samples. This is different from the simple random sampling technique which makes random selection directly from a larger sample or population without prior partitioning of the population. The different grades of students represents the individual stratum from which random selections are made.

Answer:

24 centimeters

Step-by-step explanation:

You can just count the squares around the rectangle since each of those squares is a centimeter. Hence the name centimeter grid.

Answer:

k + a = 62

k = 31 + a

Step-by-step explanation:

Given that:

Sum of ken and Alan's age = 62

Ken is 31 years older than Alan

k + a = 62 - - - (1)

k = 31 + a - - - (2)

Hence, the system of equation which best describes the ages of Ken and Alan are:

k + a = 62

k = 31 + a

Answer:

y = -3/2x

Step-by-step explanation:

Answer:

59 + 7/9

Step-by-step explanation:

The answer is 59.78 I know this cuz im is smart

Answer:

She should earn 225 dollars.

Step-by-step explanation:

I know this because 50 ÷ 4 = 12.5 and 12.5 × 18 = 225.

Answer:

right, i think this is what u want. hope this helps!

Step-by-step explanation:

Answer:

488.4 kilometers

Step-by-step explanation:

Answer:

Number of game lose = 29 games (Approx)

Step-by-step explanation:

Given:

Winning part = 5/12

Total game = 49

Find:

Number of game lose

Computation:

Lose part = 1 - 5/12

Lose part = 7/12

Number of game lose = Total game x Lose part

Number of game lose = 49 x [7/12]

Number of game lose = 28.58

Number of game lose = 29 games (Approx)

They would lose 29 games if they play 49 games

They won 5 out of their first 12 games.

Hence the number of game lost in their first 12 games = 12 - 5 = 7  games

The rate at which they lose = 7 games / 12 games

Given that they played 49 games, hence:

Number of games lost = (7 games / 12 games) * 49 = 28.58

They would lose 29 games if they play 49 games

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