On a road map of Virginia, the distance from Alexandria to Roanoke is 7.6 cm. If the map scale is 2 cm=80km What is the actual distance between the cities?

Answer:

x = -1/5 = -0.5

Step-by-step explanation:

9(x + 5)2 = 81

Answer:

x = 19

Step-by-step explanation:

9x + 45 x 2 = 81

9x + 90 = 81

      +90   + 90

9x = 171

9       9

x = 19

Answer:

1. -3 - 7x 2. - 13x

Step-by-step explanation:

1.

x+5-8x-8

-3 - 7x

2.

6y-6x-7x-6y

-13x

Answer:

The answer is B

Step-by-step explanation:

I did rise over run

Answer:

no real numbers

Step-by-step explanation:

Answer:

C or A

Step-by-step explanation:

Answer:

I would go with A

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

y = 9

x = 1

1 = 9 - 8

Answer:

12

Step-by-step explanation:

So we use PEMDAS:

-5 + 8 = 3

3 + 9 = 12

Answer:

-5 + 8 + 9 = 12

Step-by-step explanation:

To get this, all you have to do is solve the equation.

-5 + 8 = 3

3 + 9 = 12

So, the answer is 12.

Hope this helps! :)

Answer:

its correct bc the rate of change is add 3 to the x and add 4 to the y

Step-by-step explanation:

everytime you add three to the left , you add 4 to the right

Answer:

The first store

Step-by-step explanation:

Given data

Let us find the unit cost on each sale

A price for pineapples is $5 for two pineapples

Unit cost per pineapple

=5/2

=$2.5 per pineapple

price for pineapple is $8 for four pineapples

Unit cost

=8/4

=$2 per pineapple

Hence the first store offers the lowest price per pineapple $2.5

Answer:

Step-by-step explanation:

-5n-8-56n=-8  i did multiply the parenthesis

we will combine like terms

-5n-56n=-8+8

-61n=0

n=0

Answer:

n=0

Step-by-step explanation:

Remember your terms, whether it be PEMDAS / GEMS. I am going off GEMS so:

Grouping which are the parentheses; -8(1+7n) = -8-56n.

Next, combine your like terms:

-5n-8-56n=-8

-61n-8=-8

Add 8 to both sides, remember what you do to one side, you do to both sides.

-61n=0

Divide both sides by -61, your answer is 0.

Answer:

y-intercept is 5

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

m = slope

b = y-intercept

The equation of the line you gave is in slope-intercept form.

y = 3x + 5

3 is the slope, and 5 is the y-intercept.

Hope this helped! <3

Answer:

5

Step-by-step explanation:

Answer:

x = 48°

Step-by-step explanation:

In the given triangle XYZ,

Sides XY and XZ are congruent.

Therefore, both the sides will be equal in measure.

By the definition of isosceles triangle,

"Opposite angles of the equal sides are equal in measure"

m∠Y = m∠Z = x°

m∠X = 84° [Given]

By the triangle sum theorem,

m∠X + m∠Y + m∠Z = 180°

84° + x° + x° = 180°

2x = 180 - 84

x = 48°

Therefore, measure of x = 48° will be the answer.

A - Starts at (0, 0)

A - Ends at (8, 5)

B - Starts at (0, 0)

B - Ends at (3, 7)

A - X = 8 Y = 5

B - X = 3 Y = 7

The difference

A went 5 more then B did when comparing X, however, B's Y-Axis went further then A's Y-Axis

The distance

        A

X             Y

------------------

8              5

        B

X              Y

------------------

3              7

A - X = 1.6

B - X = 0.43

Answer:

B

Step-by-step explanation:

Answer:

If there are 1000 customers in the store one week, how many will purchase exactly one of these items

1000 CUSTOMERS*28%=280

Step-by-step explanation:

A The event that a persons buys a suit  

B The event that a person buys a shirt  

C The event that a person buys a tie  

P(A)=  22%

P(B)=  30%

P(C)=  28%

P(AB)= 11%

P(AC)= 14%

P(BC)= 10%

P(ABC)= 6%

A u B u C Is the event that any item is bougth

AC u AC u BC Is the event that any two events occured

So the wanted probability is

P[(A u B u C )(AB u AC u BC)^c

P[(A u B u C )=P(AB)+ P(BC)+P(BC)

P[(A u B u C ) =0.22+0.30+0.28-0.11-0.14.-0.10+0.06

                      =0,51

0,51=+0,23+P[(A u B u C )(AB u AC u BC)^c

        =0,28

1000 CUSTOMERS*28%=280

Answer:

Step-by-step explanation:

Here you go mate

Step 1

2x-y  Equation/Question

Step 2

2x-y  Evaluate for x and y

2(3)-10

Step 3

2(3)-10  Simplify

6-10

answer

-4

Hope this helps

Answer:

BUNNY: y = 3x + 5

CAT: y = 1x + 19

Step-by-step explanation:

Answer:

Bunny: 5 + 3y

Cat: 19 + y

Step-by-step explanation:

If we were trying to make an equation about the total number of pounds each animal weighs, we would take the current number of pounds for each animal and then add the product of the pounds they gain and the number of years.

Bunny: 5 + 3y

y - number of years

5 current pounds  + 3 additional pounds * y

Cat: 19 + y

y -  number of years

19 current pounds + 1 additional pound per year or just 'y'

Hope this helps.

Answer:

Means to write a product with A as a factor B times

Step-by-step explanation:

In general when b is a positive integer aᵇ means to write a product with a as a factor b times.

We know that,

aᵇ = a * a * a * a......

The number of a is b

So, aᵇ means to write a product with a as a factor b times.

Learn more about positive integer here:

https://brainly.com/question/18380011

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Answer:

slope is 2/3

Step-by-step explanation:

the x values are going up by 2. the y values are going up by 3.

Answer:

6+12b

Step-by-step explanation:

i took a test with this question and got it right

Answer:

uhm... if where doing lettes its BC but the number... maybe 14 or something im not really good at this type of math

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

Answer:

3z+2= x ; z=5

3(5)+2

15+2

17

Step-by-step explanation:

The value of the given expression at z = 5 is 45.

An algebraic expression can be obtained by doing mathematical operations on the variable and constant terms.

The variable part of an algebraic expression can never be added or subtracted from the constant part.

The given algebraic expression is 3z²− 6z.

The value of the expression at z = 5 is given as follows,

3z²− 6z

Substitute z = 5 to obtain,

3 × 5²− 6 × 5

= 75 - 30

= 45

Hence, the given expression can be simplified as 45.

To know more about algebraic expression click on,

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Answer:

1.    10

2.   26.6

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

The missing angle is about 27.92°.

Step-by-step explanation:

This is a tangent equation, as there is no hypotenuse value. I'll use x as the missing angle.

tan(x) = opposite/adjacent

tan(x) = 20/38

tan(x) = 0.52631578947368421052631578947368

tan(x) ≈ 0.53

Now, we have to reverse.

tan⁻¹(0.53) = x

27.92358972 = x

x ≈ 27.92°

Answer:

Because the total is 49.77 and the total is the bill + tip, then the tip is 49.77 - 42 or $7.77. To find the percentage, we just calculate 7.77/42 as a percentage to get 1.11/6 = (111/6)% or 37/2 percent or 18.5%