Helppppppppp please................ :(

Answer:

x=3.25

Step-by-step explanation:

x + 3.75 = 7

   -3.75   -3.75

x = 3.25

Answer:

$400

Step-by-step explanation:

Answer:

Step-by-step explanation:

7: B

8: D

9: C

10: 1/2

Answer:

c

Step-by-step explanation:

Answer:

In these types of algebra problems where we are given numbers that are "unknown" and asked to find them, it is a good idea to give them names.

Let the larger number be X.

Let the smaller number be Y.

If the larger number is three times the smaller number, we can use this information to write an equation, using our labels for the two unknown numbers. See how I translate this sentence into an equation:

The larger number is three times the smaller number.

                    X           =     3     *               Y

X = 3*Y

We've got one equation down. Since we have two variables, we're going to need two equations to solve for both of them.

The sum of two numbers is twenty-four.

                      X    +    Y    =     24

X+Y = 24

But, from our previous equation, we know that X is the same as 3*Y. This allows us to substitute "X" with "3*Y" in our second equation since the two are equal according to the first equation.

(3*Y) + Y = 24.

3Y + Y = 24

4Y = 24

4Y / 4 = 24/4

Y = 6

Now we've got the value of the smaller number. Let's plug it into our first equation,

X = 3*Y.

X = 3*(6)

X = 18

We can check our work by plugging both values into both equations and seeing if they work out:

6+18 = 24  

6*3 = 18

So our bigger number is 18, and our smaller number is 6.

Hope it helps!

Answer:

Graph x2 = 4y and state the vertex, focus, axis of symmetry, and directrix. ... this "algebraically" by rearranging the given equation into the conics form: ... picking y-values first and then finding the corresponding x-values for x = –y2 – 10y – 25: ... find the exact vertex, etc, I'll need to convert the equation to perfect-square form.

Step-by-step explanation:

Answer:

Step-by-step explanation:

(147/7)x2

42 minutes of video game time

Answer:

W = 23 degrees

Step-by-step explanation:

91 + 131 = 222

The sum of the polygon should equal 360 degrees. Therefore we subtract 360 - 222 = 138

Trial and error shows you that 2 x 23 = 46

46 + 46 + 46 + 222 = 360 degrees.

Answer:

1 inch

Step-by-step explanation:

4 times 8 3/4 is 38 and 39 minus 38 is 1

Answer:

c

Step-by-step explanation:

Answer:

d. their perimeters are in a ratio of 1:5

Explaination

A is untrue because the sides have the ratio of 1:5, explained in the quastion, so they are not equal/congruent.

B is untrue because the angles are the same in both triangles because the triangles are similar, mentioned in the question.

C is untrue because the ratio of area is squared to the ratio of the perimeter, so the actual areas would be 1:25.

Answer:

8 - 35 = 43

Step-by-step explanation:

Im not sure if that is the answer you are looking for. If not, can your clarify and show me the answer choices?

Answer:

8 + d = 43

Step-by-step explanation:

We are doing inverse operations so we need to do addition instead of subtraction.

Hope this helped!

Answer:

37°

Step-by-step explanation:

angle B = angle D (alternate angle)

2X = 74°

X = 37°

Answer:

29

Step-by-step explanation:

right in acellus

Answer:

37/8 (fraction) or 4.625 (decimal) or 4 5/8 (mixed number)

Step-by-step explanation:

Answer: T = 10p

Step-by-step explanation: Since we don't know what is the total weight, we put the an variable, T to represent the total weight. The 10p means that the poilce officer gained 10 Pounds.

B. the middle half of the data set

Answer:

9sqrt(3) in.

Step-by-step explanation:

The ratio of the lengths of the sides of a 30-60-90 triangle is:

short leg : long leg : hypotenuse

      1        :   sqrt(3)  :          2

If the short leg measures 1, then the hypotenuse measures 2.

The length of the hypotenuse is twice the length of the short leg.

The length of the long leg is sqrt(3) times the length of the short leg.

If the hypotenuse measures 18 in., then the short leg measures 9 in.

Then the long leg measures 9sqrt(3) in.

The length of the longer leg is 9√3 inches.

A ratio indicates the number of times one number contains another.

Given that, the length of the hypotenuse is 18 inches.

The ratio of the lengths of the sides of a 30°-60°-90° triangle is:

Short leg: long leg: hypotenuse = 1 : √3 : 2

Since the hypotenuse is 18 inches, it follows that the value of 2 is 18:

2 = 18

1= 9

√3 = 9√3

Hence, the length of the longer leg is 9√3 inches.

To learn more about ratios, click here:

https://brainly.com/question/13419413

#SPJ2

Answer:

10 boxes

Step-by-step explanation:

Let's say Coach Dan orders b boxes.

Then since there are 18 hats in each box, we will have a total of 18b hats.

We would like to buy enough for 168 team members, so let's set 18b equal to 168 and solve for b:

18b = 168

b = 168/18 = 9.33

Well, we clearly need at least 9 boxes, but it's not possible to have 0.33 of a box. Thus, we must order one more box for a total of 10 boxes.

Answer:

Expression 8 • 24 represents the total area.

Option A is correct.

Step-by-step explanation:

Width of living room = 8 ft

Length of living room = 24 ft

We need to calculate area:

The formula used is: [tex]Area=Length \times Width[/tex]

Putting values to get the expression

[tex]Area = 8\times24[/tex]

So, Expression 8 • 24 represents the total area.

Option A is correct.

Answer:

no one is equivalent to it

Answer:

C. 42x² - 3x - 9

Step-by-step explanation:

Area:

(7x + 3) (6x - 3)

7x(6x - 3) + 3(6x - 3)

42x² - 21x + 18x - 9

42x² - 3x - 9

The speed of object is 3.68m\s.

Given that,

Mass of the object =  5.2 kg,

Object that possesses 26.1 J of kinetic energy.

We have to find,

The speed of the object.

According to the question,

Kinetic energy is a form of energy that an object or a particle has by reason of its motion.

If work, which transfers energy, is done on an object by applying a net force, the object speeds up and there by gains kinetic energy.

Then, The formula of kinetic energy is given as,

[tex]K.E = \frac{1}{2} mv^{2}[/tex]

Where, m = mass of the object

And v = speed of the object

Therefore, The speed of the object calculated as.

[tex]KE = \frac{1}{2} mv^{2} \\\\26.1 = \frac{1}{2} \times 5.2\times v^{2} \\\\26.1 = 2.6 \times v^{2} \\\\\frac{26.1}{2.6} = v^{2} \\\\v^{2} = 10.1\\\\v = \sqrt{10.1} \\\\v = 3.68[/tex]

Hence, The speed of object is 3.68m\s.

For more information about kinetic energy click the link given below.

https://brainly.com/question/20339401

To solve this problem you must apply the following proccedure:

1. You have a total of 21 coins, all nickels and dimes. Then:

x:nickels=5 cents

y: dimes=10 cents

x+y=21

2. You have that the total value is $1.70. Then:

5x+10y=170

3. The system of equation is:

x+y=21    (i)

5x+10y=170    (ii)

4. You have:

x+y=21

x=21-y

5(21-y)+10y=170

105-5y+10y=170

y=13 dimes

x+13=21

x=8 nickels

Answer:

-y-1=3

Step-by-step explanation:

Answer:

-y-1=3

Step-by-step explanation:

took the test and got it correct

Step-by-step explanation:

u should number the graph first 1- how ever many not alot ill say through 10 and den on the bottom y/ X axis are negatives and den u have to count the numbers to wherever the point is and if I don't make sense plz text me ‍♀️

Answer:

$70

Step-by-step explanation:

Daria's total income = fixed income + variable income

Let

Daria's Fixed income = x

additional $30 if the buyer gets an extended warranty

Daria's variable income = 30s

Where,

s = number of televisions with extended warranties she sells

If Daria sells 15 televisions with extended warranties, she earns \$1,500. Find her fixed income

Daria's total income = fixed income + variable income

1500 = x + 30(15)

1500 = x + 450

1500 - 450 = x

1,050 = x

x = $1,050

Daria's total fixed income = $1,050

How much is the fixed amount Daria for each television?

Fixed income per television = Total fixed income / number of television sold

= 1050 / 15

= 70

Fixed income per television = $70

Answer:

5.8

Step-by-step explanation:

145/25

Answer:

The student council needs to sell 38 candy bars so that the money they spend is the same amount as they make.

Step-by-step explanation:

You have to write an expression where the price they spent that includes the money to rent a booth and the amount paid for each candy bar for the number of candy bars purchased is equal to the money spent that is the price at which they sell the candy bars for the number of candy bars sold:

173+0.45x=5x, where x is the number of candy bars

Now, you can solve for x:

173=5x-0.45x

173=4.55x

x=173/4.55

x=38

According to this, the answer is that the student council needs to sell 38 candy bars so that the money they spend is the same amount as they make.