Zahra completed a 5-kilometer race in 40 minutes. If she were able to keep the same pace, how many kilometers could she run in 72 minutes? 6 7 8 9

Answer: x = 12

Step-by-step explanation:

5(x-1)+3x=7(x+1)

5x - 5 + 3x = 7x + 7

8x - 5 = 7x + 7

x - 5 = 7

x = 12

Answer:

31

Step-by-step explanation:

Answer:

y=4x+6

Step-by-step explanation:

Answer:

y=5x-7

Step-by-step explanation:

Did this earlier today

Answer:

According to the above statement,

[tex](10 + 11) + (10 \times 11) + (10 - 11) \\ 21 + 110 - 1 = \boxed{120}[/tex]

Answer:

1/125

Step-by-step explanation:

(1/5)³ = 1/125

1³ = 1

5³ = 125

Answer:

Step-by-step explanation:

this looks like  1/5 * 1/5 * 1/5

multiply the tops ( numerators) and the bottoms (denominators)

tops are 1

bottoms are 125

1/125  

:)

Answer:

I'm pretty sure the answer is the last one;

6 x (40+2) = (6 x 40) + (6 x 2)

The 6 is distributed to the 40 and the 2

Answer:

0.5 is the answer to this

Answer:

0.5 is the answer

Step-by-step explanation:

Answer:

B = 119

C = 119

Step-by-step explanation: 180 - 61

B and C are vertical angles

Answer:

x=3

Step-by-step explanation:

Answer:

3 hope this helps and brainly makes me write an answer with 20 letters so im just typing random stuff

Answer:

The average age would be 45.

Step-by-step explanation:

It would be in the order it is

Answer:

Step-by-step explanation:

Circumference = 2nr

C = 2 x 3.14 x 5

C = 31.4

A = nr^2

A = 3.14 x 5^2

A= 3.15 x 25

A = 78.5

Answer:

47

Step-by-step explanation:

The cost of beginner classes is $7.6 and the cost of the advanced classes is $29.2

Addition, subtraction, multiplication, and division are the four basic algebraic operations.

Given that, x is the cost of beginner classes, and y is the cost of advanced classes.

The relationship between beginner classes and advanced classes is

x=0.5y-7

4x+3y=118

From the first equation, we can write

y=2x+14

Using this equation, we can write

4x+3(2x+14) =118

10x+42=118

i.e x=7.6

Substituting the value of x in the equation y=2x+14, we get

y=(2*7.6)+14

i.e y=29.2

The cost of beginner classes is $7.6, and the cost of advanced classes is $29.2.

To learn more about algebraic operations, use the link given below:

#SPJ5

Answer:

The relation [tex]y^{2} - 4x = 3[/tex] does not represent y as a function of x.

Step-by-step explanation:

Consider the relation

[tex]y^{2} - 4x = 3[/tex]

[tex]y=\pm \sqrt{4x+3}[/tex]

Thus, the equation [tex]y=\pm \sqrt{4x+3}[/tex] does not represent function because there is at least one x-value with two or more values.

For example, if you look at the attached graph,

at x = 0, y = 1.73

at x = 0 , y = -1.73

It means the same input is generating two outputs; also if we draw a vertical line on the graph, the vertical line would intersect the graph more than once.

Please check the red vertical line on the graph would intersect the graph more than once.

Therefore, the relation [tex]y^{2} - 4x = 3[/tex] does not represent y as a function of x.

Answer:

option d x^2 + 8x

Step-by-step explanation:

area of rectangle = l×b

=x×(x+8)

=x^2+8x

The Pythagoras Theorem:

the base squared and height squared added is equal to the hypotenuse squared.

so

(x+6)² + (x+3)²= (x+9)²

x²+36+12x+x²+9+6x = (x+9)²

2x²+45+18x=x²+81+18x

x²=36

x=√36

X= 6

now

(x+6)= 12

(x+3)=9

(x+9)=15

haha sorry correct it pls

Answer:

35

Step-by-step explanation:

E  = M - 12

M = 6 + I

I = P x 2

P = 5

I = 10

M = 16

E = 4

Answer:

Lily has 15 stamps

Step-by-step explanation:

You would divide 19.8 by 1.32 to get 15.

*Please give Brainliest to the person on top. They said the answer first. :)

Answer:

see explanation

Step-by-step explanation:

A line sloping upwards from left to right has a positive slope.

Line 1 is in this category.

A line sloping downwards from left to right has a negative slope.

Line 4 is in this category.

The slope of a vertical line, parallel to the y- axis is undefined.

Line 2 is in this category.

The slope of a horizontal line, parallel to the x- axis is zero.

Line 3 is in this category.

Answer:

Step-by-step explanation:

(11y^2-6)^2=121y^4-132y^2+36

n=2

Answer:

The slope is undefined.

Hence, option C is true.

Step-by-step explanation:

The graph represents a vertical line.

We know that the slope of a vertical line is undefined.

Verification:

Taking two points

(0, -2)

(0, -4)

Finding the slope between (0, -2) and (0, -4)

slope = m = y₂-y₁ / x₂-x₁

                = [(-4-(-2))] / [(0-0) ]

                = [-4+2] / 0

                 = -2 / 0

                  = ∞

Thus, the slope is undefined.

Hence, option C is true.

Answer:

perimeter is the length of the outline of a shape.

he circumference is the perimeter of a circle or ellipse.

Step-by-step explanation:

Answer:

congruent means similar

Step-by-step explanation:

why didnt you just search it up? lol

congruent means that they are perfectly identical.

Answer:

b

Step-by-step explanation:

the y coordinate stays the same (same vertical thing) but x coordinate changes (goes horizontal)

I hope this helped, and if it did, please mark this as brainliest! Thanks!

Answer:

False

Step-by-step explanation:

An integer is any whole number

Answer:

I believe the answer is true

Step-by-step explanation:

Answer:

A=AR is the answer

Step-by-step explanation:

Answer:

3^4, or you could say three to the fourth power.

An exponent is a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression. 3 x 3 x 3 x 3 is equivalent to 3^4 because you are multiplying three four times.

*Warning: 3 x 3 x 3 x 3 is NOT 3 x 4!!!*