Richard and Teo have a combined age of 31. Richard is 4 years older than twice Teo's age. Write a system of equations. How old are Richard and Teo?

I need to write an equation for this, please help

Answer:

Step-by-step explanation:

8*4 1/3= 34 2/3 or 34.6

Answer:

-2a + 22 =22

Step-by-step explanation:

3(a + 4) -5(a - 2) =22

3a + 12 - 5a + 10 =22

-2a + 22 =22

Answer:

-2a + 22 = 22

Step-by-step explanation:

in both a = 0

Answer:

you divide and muliply til you have got to an hour and then qadd it all

Step-by-step explanation:

Answer:

43°

Step-by-step explanation:

∠EFG+∠GFH=∠EFH

∠EFG is (3x-20) and we know x is 21. 3(21)-20=63-20=43.

Answer:

A

Step-by-step explanation:

.9 = tenth

.98 = hundredths

.987 = thousandths

Answer:

b).Thousandths

Step-by-step explanation:

Because if you go over THREE times like this

.987

←←←

it's in the thousandths place.

Hoped this helped

.7 - Tenth

.87- Hundredths

.987- Thousandths

Answer:

24

Step-by-step explanation:

Answer:

-1.25x + 0.2

Step-by-step explanation:

(-0.5x - 0.4) - (0.75x - 0.6) = -0.5x - 0.4 - 0.75x + 0.6

                                          = -0.5x - 0.75x - 0.4 + 0.6

                                          = -1.25x + 0.2

Answer: what's the question here?

Step-by-step explanation:

Option c is the correct answer

Answer:

0

Step-by-step explanation:

I love questions like these.

Ok so the formula for slope is

[tex]\frac{y2 - y1}{x2 - x1} [/tex]

In an ordered pair the first number is (x) and the second is (y). (x, y).

So that means y2 is the (y) of the second given pair and y1 is the y of the first given pair.

And x2 is the (x) of the second given pair, and the x1 is the (x) of the first given pair.

So now we fill in the formula.

[tex] \frac{8 - 8}{ - 22 - ( - 2)} [/tex]

simplify

[tex] \frac{0}{ - 20} [/tex]

0 divided by anything is still 0, so our slope is 0.

Well, to find slope of 2 points you need to use the point-slope formula: y2-y1/x2-x1. I attached a picture of my work so you can see what i'm talking about, but i'm going to explain what I did.

1. I labeled the coordinate pairs with x1, y1 and x2, y2. Since we know a coordinate pair looks like this (x,y), we take the first X and Y values and label them x1 and y1. Then, we take the second set of X and Y values and label them x2 and y2.

2. I plugged the numbers in where they belong in the formula. For example, when you label x1 should be -2. So on our formula, all we do is replace x1 with -2. Do that with all your numbers until the whole formula is filled in.

3. Then, solve it. You should get 0/-24 and you should always simplify your answer. However, in this situation, you cannot simplify. So, your answer is 0/-24.

Hope this helps :)

Answer:

3 becuase y divided by x

Step-by-step explanation:

Answer:

8 strawberries and 2 blueberries

Step-by-step explanation:

Answer: 64 degrees

Step-by-step explanation:

NCA and FCB are vertical angles so theyre the same measurement

Answer:

Step-by-step explanation:

vertical angles = ∠FCB = ∠NCA = 64°

Answer:

Step-by-step explanation:

B-37.5%

(11-8)/8=3/8=0.375=37.5%

Answer:

1) Domain: -3<x<∞

Range: -4≤y<∞

2) Domain:-∞<x<∞

Range: -∞<y<∞

3) Domain: 1<x<3

Range: -1<y<∞

4) Domain: -3<x<4

Range: -1<y<4

5) Domain: -3≤x<2

Range: -6<y≤-3

6) Domain: -∞<x<∞

Range:0≤y<∞

Step-by-step explanation:

I'm too lazy to explain this sorry if you really want to know how lmk in comments and try to explain

Answer: A. 42 tickets

Step-by-step explanation: 8, 16, 24, 32, 40, 48

Answer: A. 42 tickets

Step-by-step explanation: 8, 16, 24, 32, 40, 48

Answer:

What is an equation of the line in point-slope form?

y + 1 = (1/3)(x + 2)

How can the point-slope form be written in function notation?

f(x) = (1/3)x - (1/3)

Step-by-step explanation:

Answer:

What is an equation of the line in point-slope form?

y + 1 = (1/3)(x + 2)

How can the point-slope form be written in function notation?

f(x) = (1/3)x - (1/3)

Step-by-step explanation:

Answer:

1

or 12/12 but simplified its 1 :)

Hope this helps!

Answer:

-2/8 or  -1/8

Step-by-step explanation:

Answer:

The equation of required line is: [tex]\mathbf{5x-8y+34=0}[/tex]

Step-by-step explanation:

We need to write equation in the form Ax+By+C=0 of the line parallel to [tex]5x-8y+12=0[/tex] and through the point (-2,3)

First we need to find slope and y-intercept of the required line.

Using equation of line  [tex]5x-8y+12=0[/tex] to find slope.

Since the given line and required lines are parallel there slope is same.

Writing equation in slope intercept form: [tex]y=mx+b[/tex] where m is slope.

[tex]5x-8y+12=0 \\-8y=-5x-12\\\frac{-8y}{-8y}=\frac{-5x}{-8}-\frac{12}{-8}\\y=\frac{5}{8}x+\frac{3}{4}[/tex]

So, the slope m = 5/8

The slope of required line is [tex]m=\frac{5}{8}[/tex]

Now finding y-intercept using slope [tex]m=\frac{5}{8}[/tex] and point(-2,3)

[tex]y=mx+b\\3=\frac{5}{8}(-2)+b\\3=\frac{-5}{4}+b\\b=3+\frac{5}{4}\\b=\frac{3*4+5}{4}\\b=\frac{12+5}{4}\\b=\frac{17}{4}[/tex]

So, the equation of required line having slope [tex]m=\frac{5}{8}[/tex]  and y-intercept [tex]b=\frac{17}{4}[/tex]

[tex]y=mx+b\\y=\frac{5}{8}x+\frac{17}{4}\\y=\frac{5x+17*2}{8}\\y= \frac{5x+34}{8} \\8y=5x+34\\5x-8y+34=0[/tex]

So, The equation of required line is: [tex]\mathbf{5x-8y+34=0}[/tex]

Answer: The data appears to support the claim.

Explanation:

Ignore the year numbers.

Divide the two other values to get 2448/935 = 2.618

Round this to the nearest whole number to get 3

The data approximately supports the claim. It's not perfect, but it's fairly close.

Answer:

The missing angle is 50 degrees.

Answer:

50°

Step-by-step explanation:

Knowing that this is a parallelogram, you can infer that the adjacent angles of the polygon must add up to 180 degrees by definition. Using what is given, you would take [tex]180 - 130[/tex] to get your answer, [tex]50[/tex]°.

Hoped this helped!

Answer:

Step-by-step explanation:

surface area of a cylinder = 2πrh + 2πr²

where: r = 4 km radius

           h = 8 km

plugin values into the formula

surface area of a cylinder = 2πrh + 2πr²

                                          = 2 π (4) 8  + 2 π (4)²

                                          = 201.062 + 100.531

                                          = 301.593 km²

Answer:

Hope it's help you and Mark me as brainliest.

Answer:

The pink one

Step-by-step explanation:

3^-5 x 3^2 = 3^(-5+2) = 3^-3

Answer: 20

Step-by-step explanation:

Divide the number of students by the number of rows,

180/9=20

Answer:

Answer is 29/120 I think i worked it out so if it inst right truly im sorry but i belive this is the answer.

Answer:

=  13

   24

Step-by-step explanation:

3 + 5 / 5

8    6

do the division first as per the law of operation of math requires.

5 / 5  =  5 x 1  =  1

6            6    5     6

3 +  1  =   9 + 4     =  13

8     6         24           24

Answer:

Step-by-step explanation:

1.25 m + 3.50 = 12.35

3.50 the flat fee you just add up to the total

1.25 m you can see it depends on m the miles

12.35 is the total