ill mark as brainlest plz help me

Answer:

first one x=4

second one x=3

Step-by-step explanation:

<3

Answer:

1. True

2. True

Step-by-step explanation:

So we are playing with variables here, lets look at 1.

5x + 9 = 29 if x = 4

This means that if x equals 4, would it make the equation true? Let's find out :

Substitute :

5(4) + 9 = 29

20 + 9 = 29

This is true, let's do the same for 2. :

7x - 8 = 13 if x = 3

7(3) - 8 = 13

21 - 8 = 13

This is also true.

Answer:

the answer is 4+(2x3)^2

Answer:

6 years

Step-by-step explanation:

8$ per year $48 divided by $8=6

Answer:

6 years

Step-by-step explanation:

$8 per year $48 ÷ $8 = 6 years  

One possible answer is 8H + 4L = 512

=======================================================

Explanation:

H and L are placeholders for positive whole numbers, or 0 could replace either variable.

1 high resolution photo takes up 8 mb of space, so H of them take up 8H megabytes of space.

1 low resolution photo takes up 4 mb of space, so L of them take up 4L megabytes.

Overall, the two types of photos take up 8H+4L megabytes, which is equal to 512 since that's the max capacity. That leads to the equation 8H+4L = 512

----------------------------------

Extra info:

There are other ways to express the equation 8H+4L = 512. We could divide each part by 4 to get 2H+L = 128, but I think this equation loses its descriptive quality in a way. We no longer can see that each high resolution photo takes up 8 megabytes (instead we might mistakenly think only 2 megabytes are used per high resolution photo). A similar mistake may happen with the low resolution photos also.

The equation 2H+L = 128 can be rearranged into L = -2H+128 when solving for L.

Answer:

They aren't equivalent because when using P.E.M.D.A.S you solve what is in the parenthesis first. After you solve what is in the parenthesis the two expressions are completely different.  

Step-by-step explanation:

100/(5)=20    (4)/5= .8

The requried results of the two expressions are different (20 and 0.8), the expressions are not equivalent.

Expression 1:
100 ÷ (25 ÷ 5)

Evaluate the expression inside the parentheses.

25 ÷ 5 = 5

Replace the expression inside the parentheses with its result:

100 ÷ 5

Perform the division:

100 ÷ 5 = 20

So, the result of Expression 1 is 20.

Expression 2:
(100 ÷ 25) ÷ 5

Evaluate the expression inside the first set of parentheses.

100 ÷ 25 = 4

Replace the expression inside the first set of parentheses with its result:

4 ÷ 5

Perform the division:

4 ÷ 5 = 0.8

So, the result of Expression 2 is 0.8.

Since the results of the two expressions are different (20 and 0.8), the expressions are not equivalent.

The reason why they are not equivalent is due to the order of operations. In Expression 1, we first divide 25 by 5 and then divide 100 by the result, while in Expression 2, we first divide 100 by 25 and then divide the result by 5.

Learn more about division here:

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Answer: x = 4

Step-by-step explanation:

Distribute the 3 and the 9

[tex]3(x+2)=9(6-x)\\3x+6=54-9x[/tex]

Add 9x to both sides

[tex]12x+6=54[/tex]

Subtract 6 on both sides and simplify

[tex]12x = 48\\x=4[/tex]

Answer:

x=4

Step-by-step explanation:

3 (x+2) = 9 (6-x)

3x + 6 = 54 - 9x

     -6  =  -6

3x = 48 - 9x

+9x        +9x

12x = 48

/12     /12

x = 4

Answer:

9.354

Step-by-step explanation:

Answer:

A. 384.16

B. 2,401

C. 9,604

D. No

Step-by-step explanation:

Calculation to determine how large a sample should be taken for each desired margin of error

First step is to find σ which represent Population Standard deviation

σ=($50,000-$30,000)/4

σ=$20,000/4

σ = 5,000

Now let calculate how large a sample should be taken for each desired margin of error

Using this formula

n = (Za/2*σ/E)^2

Where,

Za/2=1-0.95/2

Za/2=0.05/2

Za/2=0.025

Z-score 0.025=1.96

Za/2=1.96

σ =5,000

E represent Desired margin of error

Let plug in the formula

a. $500

n = (1.96* 5,000/$500)^2

n=(9,800/$500)^2

n=(19.6)^2

n = 384.16

b. $200

n = (1.96*5,000/200)^2

n=(9,800/$200)^2

n=(49)^2

n = 2,401

c. $100

n = (1.96*5,000/$100)^2

n=(9,800/$100)^2

n=(98)^2

n = 9,604

Therefore how large a sample should be taken for each desired margin of error will be :

A. $500= 384.16

B. $200= 2,401

C. $100= 9,604

d.NO, Based on the information calculation i would NOT recommend trying to obtain the $100 margin of error reason been that it is highly costly compare to $500 margin of error and $200 margin of error.

Answer:

$74.25

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 5.5%/100 = 0.055 per year,

then, solving our equation

I = 600 × 0.055 × 2.25 = 74.25

I = $ 74.25

The simple interest accumulated

on a principal of $ 600.00

at a rate of 5.5% per year

for 2.25 years is $ 74.25.

Answer:

Too many answers could be correct

Step-by-step explanation:

This one is hard because it will depend on what numbers you pick for each measurement.

-----------------------------------------------------------------------------

if a = 1, b = 2, c = 3, d = 4, and e = 5

find the volume for all the shapes

The post

V = lwh = (1)(1)(2) = 2

The bottom of the mailbox

V = lwh = (3)(4)(5) = 60

The top of the mailbox

V = πr²h = (3)(5)π = 15π = 48.2

Then add them all together:

2 + 60 + 48.2 = 110.2 is the total Volume

Answer:

Select the third answer listed which states: 6/5 * 9/4

Step-by-step explanation:

To find how many of a quantity x are in another quantity y, we normally divide in the following fashion:

y divided by x = y ÷ x = y / x

Then we do the same here: 6/5 divided by 4/9  =  6/5 ÷ 4/9 = 6/5 * 9/4

(using the properties of division of fractions as equal to the product of the first one times the reciprocal of the second one)

Answer:

3rd one

Step-by-step explanation:

Answer:

which means  each day kathy swims ≥ 6 laps

Step-by-step explanation:

Answer:

(d-2) <-1

Step-by-step explanation:

The number be d. d minus 2 means (d-2).

(d-2) is less than -1.

It means,

(d-2) <-1

It is the required inequality.

So,

Adding 1 both sides.

d-2+1 <-1+1

d-1<0

or

d<1

Hence, this is the required solution.

Answer:

69

Step-by-step explanation:

m1 = 180 - (180 - 39 - 30) = 180 - 111 = 69

Answer:

positive, linear association

Step-by-step explanation:

i know because i got it correct

The option that should be selected and it shows the best description related to the relationship between the variables on the scatter plot is the first option.

It means to the set of points in which it should be plotted on the axis of horizontal and the vertical. It plays a vital role in statistics since it should represent the correlation extent.

Moreover, as per the given scatterplot, it shows the positive and linear association.

Therefore, the first option is correct.

learn more about variable here: https://brainly.com/question/18953210

Answer:

Step-by-step explanation:

2z^2(3z^2 - 7z - 20)

2z^2(3z + 5)(z - 4)

Answer:

square, parallelogram, rectangle, rhombus

Step-by-step explanation:

Considering the answer choices:

Square

Regular pentagon

Parallelogram

Rectangle

Rhombus

It can't be a pentagon because it only has four sides.

Properties of the shapes:

Rectangle - quadrilateral with two sets of congruent opposite sides and four right angles.

Rhombus - quadrilateral with four congruent sides.

Square - quadrilaterals with all properties of rectangles and rhombi.

Parallelogram - rectangles, rhombi, and squares are parallelograms.

This shape satisfies the properties of a square, meaning it is also a rectangle, rhombus, and parallelogram.

Answer:

-10,-9

Step-by-step explanation:

Answer:

We know that the factors of the number 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. Now, to find the sum of the factors, add all the numbers, you will get a total of 234.

Step-by-step explanation:

Answer:

A Between 1.43 in. and 1.47 in.

Step-by-step explanation:

If the circumference is between 9 and 9.25 inches, and we know that circumference equals 2 * pi * radius, we can solve to find that the radius equals the circumference divided by 2pi. So we get between 1.43 in and 1.47in

35 - X = 5

Simplifying

35 + -1X = 5

Solving

35 + -1X = 5

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-35' to each side of the equation.

35 + -35 + -1X = 5 + -35

Combine like terms: 35 + -35 = 0

0 + -1X = 5 + -35

-1X = 5 + -35

Combine like terms: 5 + -35 = -30

-1X = -30

Divide each side by '-1'.

X = 30

Simplifying

X = 30

Answer:

attach a photo

Step-by-step explanation:

i need more detail and then ill answer because there cant be a equation without a problem

Answer: the result is 930 minutes.

Step-by-step explanation:

15.5 hours to minutes has been calculated by multiplying 15.5 hours by 60

The drive from Savannah to Milwaukee takes approximately 930 minutes .

To convert the drive time from hours to minutes, we can multiply the number of hours by 60, as there are 60 minutes in an hour .

Given that the drive from Savannah to Milwaukee takes approximately 15.5 hours, we can calculate the drive time in minutes as follow s:

The time in minutes is equal to the time in hours multiplied by 60 .

15.5 hours = 15.5 hours * 60 minutes/hour .

15.5 hours = 930 minutes .

Therefore, the drive from Savannah to Milwaukee takes approximately 930 minutes .

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Answer:

6x + 3y = 3

I hope that this helps

Answer:

5x-16y=12

Step-by-step explanation:

Ax+By=C

FIND the LCD (6)

MULITPLY BOTH SIDES BY 6

6(8/3Y)=6(5/6X-2)

Answer: the bracelet should cost at least  $29

Step-by-step explanation:

Answer:

The answer is $8.50 I just took a quiz

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

90 - 12b = - 3b + 63

- 12b + 3b = 63 - 90

- 9b = - 27

- b = - 27/9

-b = -3

b = 3

to find the measure of MQR:

-3*3 + 63 = 54°

to find the measure of LQR:

180 - 54 = 126° + 1 = 127°

====================================================

Work Shown:

Angles MQX and LQR are vertical angles, so they are equal to one another.

angle MQX = angle LQR

-4a+139 = 4a+123

-4a-4a = 123-139

-8a = -16

a = -16/(-8)

a = 2

Use this to find each angle

We get the same value 131 each time, so this confirms we have the correct value for 'a', and it confirms our answer for angle LQR.

Answer

30/6

Step-by-step explanation:

you need to multiply 15 x 2 and 3 x 2 because 2 is your least common denominator and 2/2 is 1

sorry if that didn't make any sense

Answer:

$1.05

Step-by-step explanation:

3% of 35 = 0.03 × 35 = 1.05

Answer:

The answer to this question is n=2

Step-by-step explanation:

Answer:

20 over 4 llllllllll

Answer:

Top picture: 1/3

middle picture: 1

bottom picture: 1/2

Step-by-step explanation:

rise over run

Answer:

m<1=117

m<2=99

Step-by-step explanation:

Answer:

Angle 1 is 117 degrees.

Angle 2 is 59 degrees.

Step-by-step explanation:

Let angle 1 be x, and angle 2 be y.

By the exterior angle theorem, x + 21 = 138, so x = 138 - 21 = 117.

Again, by the exterior angle theorem, 79 + y = x = 138, so y = 138 - 79 = 59.