Dalin is 16 years old. His sister is 3/4 of his age. How old is his sister?

How old is he

Answer:

7x - 10

Step-by-step explanation:

f(x)= 5x - 7

g(x)= 2x - 3

f(x) + g(x)

= 5x - 7 + 2x - 3

= 7x - 10

The sum of f(x) and g(x) is 7x - 10.

To find the sum of f(x) and g(x), you simply need to add the two functions:

f(x) + g(x) = (5x - 7) + (2x - 3)

Now, combine like terms:

f(x) + g(x) = 5x + 2x - 7 - 3

f(x) + g(x) = 7x - 10

Therefore, the sum of f(x) and g(x) is 7x - 10.

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Answer: 50 feet

Step-by-step explanation: it went 40 feet to get to the surface of the water then it went and extra 10 feet above water so 40+10=50

Answer:

D

Step-by-step explanation:

45+62=107

180-107=73

Answer:

D)   k=73

Step-by-step explanation:

easy triangles add up to 180

180-62-45=73

Brainliest please

There are 544,320 7-digit numbers that are all unique and arranged in increasing order.

We apply the Fundamental Counting Principle to this issue. You are aware that a number has seven digits. According to this theory, you must multiply the potential integers for each digit. There are 9 potential numbers if the initial number can't be zero. Consequently, the first digit's value is 9. Any number, but less than 1, could be used for the second digit since it was already used in the first. Thus, 10 – 1 would equal 9. The value in the third digit must be less than 1 and in the second digit. In this case, 9 – 1 Equals 8. And the list goes on.

Therefore, the number of seven-digit numbers in which all digits are different and in increasing order is:

9 × 9 × 8 × 7 × 6 × 5 × 4 = 544,320

Hence, there are 544,320 7-digit numbers with all different digits in increasing order.

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Answer:They are corresponding angles

Have a great day!

Stay safe and healthy!

Happy holiday seasons!

May I please have brainliest?

Answer:

For me when I am finding the slope I actually use the slope formula [tex]\frac{y2-y1}{x2-x1}[/tex].

Step-by-step explanation:

Step 1 you have to find the x and y

Step 2: Use the slope formula

Step 3: Subtract y2 and y1 to get your answer

Step 4: Subtract x2 and x1 to get your answer

Step 4: If your answer is easy to divide  simplify it, if not leave it as it is

That's all I know

I hope this helps :)

Answer:

Choose two sets of data (x and y values).  Calculate the difference between the two y values.  Calculate the difference between the corresponding two x values.  Slope is the difference in y values / difference in x values.

Hope this Helps!

Answer:

x = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

-4(x + 2) = 4(2 - 2x)

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that -24 does equal -24.

∴ x = 4 is the solution to the equation.

Answer:

$68 to hire and 28.25 per hour to hire both

Step-by-step explanation:

Abbie takes 110 minutes t  complete painting work alone.

Let x= time takes Abbie to paint the room

1 minute =1/x part the of room painted paint by Abbie paint the room

2x  minute times takes both to paint the room

so, in 1 minute 1/2x part of the  room  paint by Abbie and Beth

Abbie paints three times  faster than  Cathie

Cathie takes 3x minutes take time to paint the room.

in 1 minute 1/3x part of room  paint by Cathie

they take 60 minute  to paint a room all three working together

in 1minute 1/x+ 1/2x+ 1/3x parts

in 60 minute = ( 1/x+1/2x+ 1/3x) 60 =1 room

                     = [tex]\frac{6x+3x+2x}{6x^{2} } 60[/tex] = 1

                     =   [tex]\frac{11x}{6x^{2} } 60[/tex] = 1

                 x = 110 minute

Abbie take 110 minutes to  complete painting work alone.

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Answer:

Step-by-step explanation:

Alexis is X years old

Josiah is X + 5 years old

in 7 years:

Alexis is x + 7 years old

Josiah is x + 5 + 7 => x + 12 years old

Sum of their ages is 85 :

x + 7 + x + 12 = 85

2x + 19 = 85

2x = 85 - 19 = 66

x = 66/2 = 33 => Alexis age

Josiah is x + 5 = 33 + 5 = 38 years old

Answer:

189

Step-by-step explanation:

bc that's just what I think

Answer:

Finding the y value is easy if you know the slope of the line and the x coordinate. Review the equation for the slope of a line. The equation for finding the slope is: m = [y1 - y2] / [x1 - x2]. If you know x, you can solve for y to find the y value for the slope of the line.

Step-by-step explanation:

Answer:

we would add [tex]\:\left(\frac{1}{2}\right)^2\:[/tex] or 1/4 to make the expression a perfect square.

Step-by-step explanation:

Given the expression

[tex]x^2+x[/tex]

[tex]\mathrm{Write}\:x^2+x\:\mathrm{in\:the\:form:\:\:}x^2+2ax+a^2[/tex]

[tex]2a=1[/tex]

Divide both sides by 2

[tex]\frac{2a}{2}=\frac{1}{2}[/tex]

[tex]a=\frac{1}{2}[/tex]

as

[tex]x^2+2ax+a^2=\left(x+a\right)^2[/tex]

[tex]\mathrm{Add\:}\:\left(\frac{1}{2}\right)^2\:[/tex]

[tex]x^2+1x+\left(\frac{1}{2}\right)^2=\left(x+\frac{1}{2}\right)^2[/tex]

Thus, we would add [tex]\:\left(\frac{1}{2}\right)^2\:[/tex] or 1/4 to make the expression a perfect square.

Answer:

7

Step-by-step explanation:

You just know when u got it

Answer:

Is 18.6 feet

Step-by-step explanation:

Answer:

4:3 i think

Step-by-step explanation:

He changes the oil in his car 4 times each year. There are 12 months in one year. He changes the oil every 12 months. Divide 12 by 4. Zane changes the oil in his car every three months.

Answer:

plus 4 every time

Step-by-step explanation:

1+4=5+4=9+4=13+4=17

The meaning of s in the question is that it means the Annual Sales for a particular electronic item is 53.4millions for the year 2008

The Annual sales is the total amount of money that a company makes during the period of 12 months for the sale of a product.

In the question it is mentioned that the value of s is 53.4 for the year 2008.

and s denotes the annual sales for electronic item in that particular year .

S in the statement means Annual Sales for a particular electronic item in the year 2008 was of 53.4 millions.

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The pound that he ad will be 19/30 pounds.

From the information, it was stated that Sean bought 4/5 of a pound of cherries and then he ate 1/3 of a pound of them.

He also found out that he had 1/6 of a pound of cherries in his cupboard.

Therefore, the total will be:

= (4/5 - 1/3) + 1/6

= 24/30 - 10/30 + 5/30

= 19/30

Therefore, the pound that he ad will be 19/30 pounds.

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The surface area of the given cylinder trash can is 1,628 in²

The surface area of a cylinder is equal to the area of curved surface plus the area of flat surfaces. The flat surfaces are the base and the lid.

Area of the curved surface = 2 π.r.h

Area of the flat surfaces = 2 π.r²

Hence,

Total surface area of a cylinder = 2 π.r.h + 2 π.r²

                                                 = 2 π.r (h + r)

Where:

h = height

r = radius of the base

Parameters given:

h = 30 in.

r = 7 in.

Substitute these parameters into the formula:

Area = 2. (22/7) . 7. (7 + 30)

        = 1,628 in²

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Answer:

Step-by-step explanation:

5x - 40 = 20

5x = 20 + 40

5x = 60

x = 60/5

x = 12

Answer:

x = 12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define equation

5(x - 8) = 20

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 20 does indeed equal 20.

∴ x = 12 is a solution to the equation.

Answer:

A = h²

Step-by-step explanation:

the area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )

here b = 2h , then

A = [tex]\frac{1}{2}[/tex] × 2h × h = h × h = h²

Answer:

The coordinates of the midpoint of the line segment p(-5,-1) Q(6,-2) would be: (1/2, -3/2)

Step-by-step explanation:

Given

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-5,\:-1\right),\:\left(x_2,\:y_2\right)=\left(6,\:-2\right)[/tex]

[tex]=\left(\frac{6-5}{2},\:\frac{-2-1}{2}\right)[/tex]

[tex]=\left(\frac{1}{2},\:-\frac{3}{2}\right)[/tex]

Thus, the coordinates of the midpoint of the line segment p(-5,-1) Q(6,-2) would be: (1/2, -3/2)

Answer:

(2)(18)x

=36x

Step-by-step explanation:

sorry if its wrong i need points and i didnt quit know what this was but sorry if this was wrong and sorry if i didnt help