Alfie has £10 note He buys 3 pens costing 1.45 each and some pencils costing 90p He gets 2.05 change. How many pencils did he buy?

Answer:

180=12x+35+3x+10 or 180=15x+45

Step-by-step explanation:

supplementary means that they will add up to equal 180.

Step-by-step explanation: The equation of a vertical line can always be written as x = the x-coordinate of the given point.

So in this case, our equation is x = 2.

Answer:

546

Step-by-step explanation:

Lateral SA = (2l + 2w)·h

= [2(10.5) + 2(2.5)] · 21

= (21 + 5) ·21

= 26(21)

= 546

Answer:

B. 85 degrees

Step-by-step explanation:

To find the top angle inside the tringle, do 180-133 = 47. To find the angle on the left, do 180 - 142 = 38. Do 180 - 47 + 38 = 95 to find the final angle. Then do 180-95 = 85 to find the angle wanted. This is all about using lines, because the angles on both sides of the line must add to 180 if one of the lines they lie on is the same. Hope this makes sense.

Answer:

15

Step-by-step explanation:

the answer is 15 because a triangle has to equal 180 so all you have to do is add 81 and 84 then subtract 180 from it. like this 81+84=165 180-165=15. Hope this helps.

Answer:

Initial amount = 8

Decay rate = 15%

Step-by-step explanation:

Given the exponential function :

y = 8(1 – 0.15)

The general form of an exponential Decay function is :

A = P(1 - r)^t

Where

A = final amout ; P = initial amount ; r = days cay rate ; t = time

Hence, comparing with the equation given :

P = 8 = initial amount

r = 0.15 = 0.15 * 100% = 15% = Decay rate

Answer and Step-by-step explanation:

It is in the screenshot.

The point is (-3, 7), and would be noted as V'.

#teamtrees #WAP (Water And Plant)

Image of the point V is V' = (-3, 7) as shown in the graph below.

One of the most intriguing ideas in mathematics is called coordinate geometry. By using graphs with curves and lines, coordinate geometry (also known as the analytic geometry) explains how geometry and algebra are related. They can answer geometrical problems because it gives them geometrical aspects of algebra. In this area of geometry, a pair of ordered numbers is used to describe the location of points on a plane.

As per the given data:

Coordinates of point V = (3, -7)

Rotation to be given = 180° (clockwise)

For drawing the image of point V (3, -7):

Step 1: Draw a line passing through the origin and V (3, -7) extending through 2nd and 4th quadrant.

Step 2: Change sign of x and y coordinates as rotation is of 180° and mark the point in the 2nd quadrant.

Image of the point V is V' = (-3, 7) as shown in the graph below.

Hence, the image of the point V is V' = (-3, 7).

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Answer:

C

Step-by-step explanation:

the negative sign in -0.3 implies that it is below and the only answer choice with the word below is

C: New orleans is 0.3m below sea level

Answer:

y=-7x-9

Step-by-step explanation:

Answer:

12.56 mm²

Step-by-step explanation:

[tex]A=\pi r^{2}[/tex]

Plug the given values into the area equation

[tex]A=3.14*2^{2}\\A=3.14*4\\A=12.56[/tex]

Therefore, the area of the circle is 12.56 mm².

I hope this helps!

Answer:

79239729379249

Step-by-step explanation:

your aswer is 284389300 oo

Answer:

the first one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

1 solution

Step-by-step explanation:

A system of linear equations has no solution when the graphs are parallel.

The value of x is -1 and value of y is -1.

Two or more expressions with an Equal sign is called as Equation.

The given equations are

x+5y=-6...(1)

5x – 3y = -2...(2)

Multiply equation 1 with 5

5x+25y=-30..(3)

Subtract equation 2 and equation 3

5x-3y-5x-25y=-2+30

-28y=28

Divide both sides by 28

y=-1

Now plug in y value in equation 1

x=5-6

x=-1

Hence, the value of x is -1 and value of y is -1.

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Answer:

Answer vary :

|-5| < |-6|

Step-by-step explanation:

honestly in my opinion that’s the answer.

‘these lines | change a negative number to a positive so if it changes -5 and -6 to positives.

wich makes |-5| < |-6| the right one.

and that’s how I came to that solution.

Answer:

Cannot be determined

Step-by-step explanation:

You cannot assume the function travels down infinitely, because the function is not given to you. The graph could go up down left or right for all you know, you just cannot see it.

Answer:

5/4

Step-by-step explanation:

Rise over run you go up 5 and left 4 so 5/4 is the ROC.

The rate of change of the function is given by the slope of the line m = -4/3

The equation of a line is y = mx + b where m is the slope which is the rise by run and b is the y-intercept

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

Given data ,

Let the rate of change of the function be m

The equation is represented as A

Now , the value of A is

Let the first point be P ( 0 , 4 )

Let the second point be Q ( 3 , 0 )

Slope m = -4/3

On simplifying the equation , we get

Slope m = -4/3

Now , the equation of line is

y - 4 = ( -4/3 ) ( x - 0 )

On simplifying the equation , we egt

y - 4 = ( -4/3 )x

y = ( -4/3 )x + 4

Hence , the equation of line is y = ( -4/3 )x + 4 and the rate of change of the function is m = -4/3

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Answer:

16

Step-by-step explanation:

6.9+5+4.1

11+5

16

pls thanks

Answer:

16

Step-by-step explanation:

Recall that the product of a negative number and another negative number is a positive number.  Thus, -(-5) = +5, and the original expression becomes

6.9 + 5 + 4.1​.

Combining the mixed numbers 6.9 and 4.1, we get 11.

Combining 11 and 5 results in 16.

Answer:

Because linear pairs of angles are  supplementary. m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°.

Because angles that are  supplementary to the same angle are congruent. It can be concluded that ∠1 ≅ ∠3.

Step-by-step explanation:

The correct question is attached.

Linear pairs angles are angles which are formed from the intersection of two lines and they are adjacent to each other. Linear pair angles are supplementary.

If angles are supplementary to the same angle, then they are congruent.

∠1 and ∠3 are vertical angles

∠1 and ∠2 form linear pairs while ∠2 and ∠3 form linear pairs. Therefore:

m∠1 + m∠2 = 180° (linear pair angles are supplementary)

m∠2 + m∠3 = 180° (linear pair angles are supplementary)

Hence using transitive property of equality:

m∠1 + m∠2 = m∠2 + m∠3

Using subtraction property of equality by subtracting m∠2 from both sides gives:

m∠1 = m∠3

∠1 ≅ ∠3 (vertical angles are congruent)

Because linear pairs of angles are  supplementary. m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°.

Because angles that are  supplementary to the same angle are congruent. It can be concluded that ∠1 ≅ ∠3.

Answer:

5 + (18,8 × 5) = 99

Explaination

one ticket costs: (99$ - 5$) ÷ 5 = $18,8

Answer:

d

Step-by-step explanation:

in order for it to be a triangle the angles have to add up to equal 180

5+75+100=180 so its not a

10+80+90=180 so its not b

20+60+100=180 so its not c

45+45+45=135 so its d because the angles dont add up to 180

50+50+80=180 so its not e

Answer:

D

Step-by-step explanation:

To be a triangle, you have to have 180 degrees. if you add up all of the sides, it should give you 180. If it doesn't, it isn't a triangle. I hope that helped! :)

Plz consider giving me brainliest answer as I am trying to reach a new level, thanks!

I don't know how to give brainliest tho.

Answer:

2.Movies

3.Meet Cherry

4.Fall Asleep

5.Darry hits pony

6.Pony and Johny run to the park

7.Underwater

8.Money and Directions

9.Windrixville

10.Save kids

11.Interview newspaper

12.Randy talks to pony

13.Hospital

14.Switchblade

15.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Perpendicular cross section of a pyramid -------   triangle.  

Imagine you cut pyramid like that. Height of pyramid would be height of your triangle. and sides of pyramid would be sides of triangle.

Perpendicular cross section of a cylinder -------  rectangle

diameter of a base of cylinder would be one side of rectangle and height of cylinder would be other side of rectangle. (pair of sides)

parallel cross section of a sphere ------ circle

when you cut sphere a side would appear with shape of circle.

shape create....    -----    cylinder.  

one side of rectangle would be high of cylinder and other would be radius of it.

last one is cone.  If you place right angle in coordinate beginning (0.0) and one of shorter sides to lie on y axis other would be on x axis. when rotated you get cone.

Answer:b=39 degrees

Step-by-step explanation:

We know the whole angle is a 90 degree angle because of the right angle sign. So all we have to do is subtract 51 from 90, which is 39 degrees

Answer:

{324, 0, -6, 54}

Step-by-step explanation:

Given that F(x) = 3x² − 3 x − 6 If the domain of a the function f(x) is { -10, -1, 1, 5 }.

To get the range, we will find f(x) for all the domains

at x = -10

f(-10) = 3(-10)²-3(-10) - 6

f(-10) = 3(100)-3(-10) - 6

f(-10) = 300+30-6

f(-10) = 330-6

f(-10) = 324

at x = -1

f(-1) = 3(-1)²-3(-1) - 6

f(-1) = 3(1)-3(-1) - 6

f(-1) = 3+3-6

f(-1) = 6-6

f(-1) = 0

at x = 1

f(1) = 3(1)²-3(1) - 6

f(1) = 3(1)-3(1) - 6

f(1) = 3-3-6

f(1) = 0-6

f(1) = -6

at x = 5

f(5) = 3(5)²-3(5) - 6

f(5) = 3(25)-3(5) - 6

f(5) = 75-15-6

f(5) = 60-6

f(5) = 54

Hence the range of the relation are {324, 0, -6, 54}

Answer:

Im pretty sure it's 2, but Im not sure

Step-by-step explanation:

The answer is  [tex]\frac{5}{10}[/tex]

And that is correct

Answer:

5/10

Step-by-step explanation:

can be reduced to 1/2 or 0.5