I need help I turn this in in less than 20 min

Answer:

Alvin: 49

Elga: 40

Step-by-step explanation:

Hey there!☺

[tex]Answer:\boxed{40}[/tex]

[tex]Explanation:[/tex]

Elga's age can be represented as "x". If Elga is x years old, then Alvin's age would be represented as "x+9", since Alvin is 9 years older than Elga.

Their combined age is 89. If you were to write that as an equation in terms of "x", you would have the following equation.

[tex]x+x+9=89[/tex]

Since the question is asking for Elga's age, which is x, you're going to be solving the equation for the value of x.

First add like terms: [tex]x+x+9=89 \rightarrow 2x+9=89[/tex]

Subtract both sides by 9 to leave x alone: [tex]2x+9-9=89-9 \rightarrow 2x=80[/tex]

Divide both sides by 2 to find x: [tex]\frac{2x}{2} = \frac{80}{2} \rightarrow x=40[/tex]

Since x is equal to 40, Elga is 40 years old, and Alvin would be 49 years old.

You can also check if the answer is correct by adding their ages.

[tex]40+49=89\ \br \checkmark[/tex]

Elga is 40 years old.

Hope this helps!

[tex]\text{-TestedHyperr}[/tex]

Answer:

25.2X + 3.4 centimeters.

Step-by-step explanation:

The formula for the perimeter of a rectangle

= 2L + 2W

= 2(L + W)

From the question:

Width of a rectangle (W) = 9.7 X - 4.7 centimeters

Length of a rectangle (L) = 2.9 X + 6.4 centimeters

Imputing it into the formula

2(L + W)

2( 9.7X - 4.7 + 2.9X + 6.4)

2 (9.7X + 2.9X - 4.7 + 6.4)

2( 12.6X + 1.7)

= 25.2X + 3.4 centimeters.

Therefore, the perimeter of the rectangle = 25.2X + 3.4 centimeters.

Answer:

2/10 or 0.2

i dont know which tenths you wanted so i did both

Answer:

3

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

Step 1:

x = 7

Step 2:

4 ( 7 ) + 9

Step 3:

28 + 9

Answer:

37

Hope This Helps :)

Answer:

P=40

Step-by-step explanation:

find the distance between each vertices:

between the following points to find the length of each sides, octagon has 8 sides , since it is regular pentagon the distance between each vertices =5

the length of each side of octagon=5

to check :d=√(x2-x1)²+(y2-y1)²

(-2,-4) and (1,0) , d=√[(1-(-2)]²+(0+4)² =√3²+4², d=5

(1,0) and (1,5)  , d= 5

(1,5) and (-2,9) ,  d=5

(-2,9) and (-7,9) , d=5

(-7,9) and (-10,5) , d=5

(-10,5) and(-10,0) , d=5

(-10,0) and(-7,-4), d= 5

(-7,-4) and (-2,-4), d=5

perimeter of octagon = 8a ( a is the length of the side)

p=8(5)

P=40

Answer:

225 feet

Step-by-step explanation:

-245 plus -83 then add 103

Given:

Line P Q has points (-5, 3) and (5, 1).

Line R S has points (-4, -2) and (0, -4).

To find:

The relationship between lines PQ and RS.

Solution:

If a line passing through two points, then the slope of line is

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Line P Q has points (-5, 3) and (5, 1). So, slope of line PQ is

[tex]m_1=\dfrac{1-3}{5-(-5)}[/tex]

[tex]m_1=\dfrac{-2}{5+5}[/tex]

[tex]m_1=\dfrac{-2}{10}[/tex]

[tex]m_1=\dfrac{-1}{5}[/tex]

Line R S has points (-4, -2) and (0, -4). So, slope of line RS is

[tex]m_2=\dfrac{-4-(-2)}{0-(-4)}[/tex]

[tex]m_2=\dfrac{-4+2}{0+4}[/tex]

[tex]m_2=\dfrac{-2}{4}[/tex]

[tex]m_2=\dfrac{-1}{2}[/tex]

Slopes of two parallel lines are equal.

[tex]m_1\neq m_2[/tex]

They are not parallel because their slopes are not equal.

Therefore, the correct option is C.

Answer:

the correct answer is c

Step-by-step explanation:

Edu2020

Answer:

4.2 is your median

Step-by-step explanation:

just o the math

Answer:

4.0

Step-by-step explanation:

[tex]3.8\: \:)4.2\:\:)4.0(\:\:4.2(\:\:4.2[/tex]

Median is the middle number in a given set of data .

Answer:

129 inches

Step-by-step explanation:

31+4(2²)+8(2)+7(2)+30+3(2²)-5(2)+20=

31+16+16+14+30+12-10+20=

129 inches

Answer:

129 inches

Step-by-step explanation:

got it right on edgenuity

The fraction [tex]\dfrac{10}{2}[/tex] is equal to 5.

Important information:

The given number can be written as:

[tex]5=\dfrac{5}{1}[/tex]

Now, multiply the numerator and denominator by the same natural number which is greater than 1, to get a fraction.

Multiply the numerator and denominator by 2.

[tex]\dfrac{5\times 2}{1\times 2}=\dfrac{10}{2}[/tex]

Therefore, the fraction [tex]\dfrac{10}{2}[/tex] is equal to 5.

Find out more about 'Fraction' here:

https://brainly.com/question/363606

The fraction 5/1 is equal to 5, 25/5, and 30/6.

We have,

When we write a whole number as a fraction, we can express it by placing the number over the denominator of 1.

This is because any number divided by 1 is equal to itself.

In the case of the number 5,

We can write it as a fraction by placing it over 1:

5/1

This fraction represents the whole number 5, where the numerator (5) indicates the quantity or value, and the denominator (1) represents a single unit.

Or,

25/5 can also be written as 5// = 5

30/6 can also be written as 5/1 = 5

Thus,

The fraction 5/1 is equal to 5, 25/5, and 30/6.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ6

Answer: x=-7

Step-by-step explanation:

1) The angles of a triangle are equal to 180

2) Add your angles together and set them equal to 180 like this:

x+59+x+51+84=180

3) Combine like terms:

2x+ 194 =180

4) Subtract 195 from both sides:

2x+ 194 =180

    - 194   -194

2x = -14

5) Divide by 2 on both sides

2x= -14

/2     /2

x= -7

Answer: The distance between them would be 4 and 5 because if you look at it the one is at -1 and the 5 is at the top you have to count how many spaces their are between them to see what your answer would be and so in this equation it would be 4 and

Step-by-step explanation:The distance between them would be 4 and 5 because if you look at it the one is at -1 and the 5 is at the top you have to count how many spaces their are between them to see what your answer would be and so in this equation it would be 4 and

Answer: (2.5,2)

Step-by-step explanation:

Answer:

i think it means pre image (plural pre images) (mathematics) For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ−1(B) = {x ∈ X : ƒ(x) ∈ B}. The pre image of under the function is the set .

Step-by-step explanation:

Answer:

I forgot what the letter was for this option but The Pre image is a geometric shape BEFORE a transformation occurs ( I think that's option B but u should read it to be sure)

Step-by-step explanation:

Hope this helps I was kinda paying attention

Answer:

≠

Step-by-step explanation:

10 * 7 - 3 ____ 10 * (7 - 3)

70 - 3 ____ 10 * (7 - 3)

67 ____ 10 * (7 - 3)

67 ____ 10 * 4

67 ____ 40

67 ≠ 40

Answer is ≠

this is because of the order you do a problem.

1. P - paranthesis

2. E - exponents

3. MD - multiplication division (whatever comes first)

4. AS - addition subtraction (whatever comes first)

There are no paranthesis in the first one so you multiply first.

There are paranthesis in the second one so you add first.

That gives you a different answer for each making it unequal.

Answer: 9000

Step-by-step explanation:

Answer: F=(x-1) (3x-1/x =21

Step-by-step explanation: Fx/x=3x^2-4x+1/x

Answer:

See SBS Explanation

Step-by-step explanation:

1. Produces a number that can be classified as an Irrational number.

A:  Square root of 2.

2. Produces a number that an be classified as a Rational number.

A: Square root of 4.

3. Rational number that can be classified as an integer.

A: Negative 2/1 (-2/1)

4. Rational number that produces a repeating decimal.

A: 5/9 (Decimal is 0.5 repeating or 0.555....)

5. Rational number that produces a terminating decimal.

A: 1/4 (Decimal is 0.25)

Answer:

ofc I can.

Step-by-step explanation:

Solve for b.

By simplifying both sides of the equation, then isolating the variable.

Exact Form:

b= 27/2

Decimal Form:

b= 13.5

Mixed Number Form:

b= 13 1/2

Answer:-0.125

Step-by-step explanation:

The average change in water volume is -0.125 liter per day.

Answer:

Reflection

Step-by-step explanation:

Answer:

the order of operations is .called BODMAS rule

B.brackets

O.of

D.division

M.multiplication

A.addition

S.subtraction

Step-by-step explanation:

= (-112)-(20)

= -132

Answer:

The 14 oz bottle has the lowest cost per ounce.

Step-by-step explanation:

$3.36/14

Answer:

17. -1 (y2-y1/x2-x1)

18. x/8= -6-4, x= -10*8 = -80

Answer:

x=3

Step-by-step explanation:

10-3x+8x=25

-10            -10

-3x+8x=    15

5x=15

5x/5=15/5

x=3

Answer:

Bro this some alien hyroglyphics

Step-by-step explanation:

Answer:

m = - 27

Step-by-step explanation:

Given

3(m - 5) + 11 = - 85 ← distribute and simplify left side

3m - 15 + 11 = - 85

3m - 4 = - 85 ( add 4 to both sides )

3m = - 81 ( divide both sides by 3 )

m = - 27

the answer would be 4/four!

Your answer would be four