A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.

Which one is it??

Answer:

a=-3

Step-by-step explanation:

First, subtract 6 from both sides

6=-2a

divide -2 from both sides

-3=a

Answer:

The ubite rate is 13

Step-by-step explanation:

Answer:

9.9, if rounding 10

Step-by-step explanation:

1 (best friend) + 10 (other people)=11 (total people)

10% are female

90% are male

.9*11=9.9

Answer:

A' is (1,1) B is (4,1) C is (1,-1)

Step-by-step explanation:

Since we rotating the figure about point a, we know a is the center of the rotation meaning no matter how far we rotate point a new image will stay on where point a pre image was which in this case is (1,1). Also since we know the rules of rotating a angle 90 degrees About the origin we are going to translate the figure to have the one point we are rotating about at the orgin. Since translations are a rigid transformations, the figure will stay the same A. Move the figure 1 to the left and 1 down so A becomes 0,0 B becomes 0,3 and C becomes 2,0. Then apply the rules of 90 degree clockwise rotation rules. (x,y) goes to (y,-x) . A stays (0,0) B becomes (3,0) and C becomes (0,-2). Then translate the figure 1 to the right and 1 down since we rotating about point a which is 1,1 and it at 0,0 rn. A' is 1,1. B' becomes (4,1). C' becomes (1,-1).

Answer:

A. 1200

Step-by-step explanation:

Speed in meter per minute

= (216*1000)/(3*60)

= 216000/180

= 1200

Answer:

A. 1200

Step-by-step explanation:

Distance travelled (d)

= 216 km

= 216000 m

time taken (t)

= 3 hours

= 3 * 60

= 180 min

Speed (s)

= d / t

= 216000/180

= 1200 m / min

The speed of the car is 1200 metres per minute.

Answer:

Step-by-step explanation:

Answer:

The cost of 5 apples.

Step-by-step explanation:

Typically the equation would be written as C(n) = 4.50

Since 5 is where 'n' should be, then that means the number of apples in the equation is five.

C(5) = 4.50

Means, that 5 apples cost $4.50

Answer:

c

...................

Answer:

3/4 tsp

Step-by-step explanation:

To find out how much thyme you would need, set up a proportion of thyme to servings and solve: 1/4 tsp/8 servings = x tsp/24 servings

Step-by-step explanation:

///////hope it helps:)

The trigonometric function gives the ratio of different sides of a right-angle triangle. The Sine or Sinθ in a right angle triangle is the ratio of its perpendicular to its Hypotenuse.

The Sine or Sinθ in a right angle triangle is the ratio of its perpendicular to its Hypotenuse. it is given as,

Sin(θ) = Perpendicular/Hypotenuse

where,

θ is the angle,

Perpendicular is the side of the triangle opposite to the angle θ,

The hypotenuse is the longest side of the triangle.

The angle of elevation is equal to,

The angle of elevation = Sin⁻¹ (4.5/11.75)

                                      = 22.5183° ≈ 23°

Hence, the angle of elevation formed by the ramp by the ground to the nearest degree is 23°.

Learn more about Sine:

https://brainly.com/question/21286835

#SPJ2

Answer:

Genevieve plants a total of 432 flowers.

Step-by-step explanation:

18 flowers go in every row so you have to multiply the number of rows (24) by the number of flowers in each row (18) to get the total of 432 flowers.

Answer:

Identity

Step-by-step explanation:

Conditional equation, an identity, or a contradiction.

Conditional equation: Two sides are equal for some value of x.

Identity: Two sides are equal for every value of x.

Contradiction: We have 0x = number that is not 0.

4x+5x−15=9x−10−5

Lets solve

[tex]4x + 5x - 15 = 9x - 10 - 5[/tex]

[tex]9x - 15 = 9x - 15[/tex]

Equal on both sides, so identity.

Answer:

conditional equation

Step-by-step explanation:

Collecting terms on both sides, we get

−4+3x−5x−2x−4=−1−10+x=x−11

Subtracting x and adding 4 to both sides of the equation, we get

−3x=−7

This can be solved by dividing by −3 on both sides of the equation, which gives a unique solution of 73. So, this is a conditional equation.

Answer:

5 Lights

Step-by-step explanation:

L = .25 * 20 = 5 Lights.

Answer:

20 X 1/4 (25%)=5

5 lights didn't work

Step-by-step explanation:

Answer:

account 2 years ago. The simple interest rate is 2.9% The interest that you eamed in those 2 years is $17.40. Which of the following is/are true? = 2.996 r=17-40 D= 300.

Answer:

The answer is 60

Step-by-step explanation:

How to find what percent of X is Y. Use the percentage formula: Y/X = P% Example: What percent of 60 is 12? Important! The result will always be in decimal form, not percentage form.

(i know this isn’t the clearest formula but its what i used)

Answer:

60

Step-by-step explanation:

To make this problem a little easier, think of 80% as 4/5.

(4/5 = 48/x) ~the unknown is represented by x

After cross multiplying, or "the butterfly method" you would get:

4x = 5(48)

4x = 240

240/4 = 60!

Answer: (C

Step-by-step explanation: To evaluate this, solve by raising 7 to the power of 3.

7 x 7 x 7

7 x 7 = 49 x 7 = 343

Therefore, the answer is C.

Answer:

C

Step-by-step explanation:

Hope it helps!

Answer:

Step-by-step explanation:

the equation of a line in

point-slope form

is.

xy − y1 = m(x−x1)

where m is the slope and (x1 - y1 ) a point on the line

to calculate m use the

gradient formula

m= y2−y1

     x2−x1

let ( x1 , y1) =( 8, 5) and ( x2 ,y2 ) = (0, −4)

⇒ m= -4-5/0-8= -9/-8= 9/8

using m= 9/8 and (x1- y1) = (8,5) then

y-5= 9/8(x-8)

Answer:

13.81

Step-by-step explanation:

Answer:

The Correct Answer Is 13.806

Step-by-step explanation:

428 divided by 31 is equal to 13806...46363284632463247864782647832648237...367842634862349236498324698324...yeah i dont know, but in thousands that is 13.806.

Therefore your answer is 13.806.

Hope it Helps!

Answer:

6 units

Step-by-step explanation:

Given data

x1=4

y1=6

x2=5

y2=0

substitute in the formula for the distance between two points

d=√((x_2-x_1)²+(y_2-y_1)²)

d=√((5-4)²+(0-6)²)

d=√((1)²+(6)²)

d=√36)

d=6

Hence the distance is 6 units

9514 1404 393

Answer:

  700

Step-by-step explanation:

The numbers can range from 100 to 799. There are 700 possible numbers.

I'm 99% sure your answer is B!

I hope this answer helped! please mark brainliest and vote 5 stars >:)

9514 1404 393

Answer:

  2

Step-by-step explanation:

Alex has 10 money units. Annie has 5 money units. The ratio of amounts is ...

  Alex : Annie = 10 : 5 = 2 : 1

Alex has 2 times as much money as Annie.

the world may never know

Answer:

Yeah, what the dude above me said.

Step-by-step explanation:

Answer:

yes 2 is the answer yes yes yes yes

Answer:

90

Step-by-step explanation:

3/1=3

30x3=90

Answer:

x = 2, y = -1

Step-by-step explanation:

We have a solution system, x = -6y - 4 and 6x - 12y = 24.

Now, since are not only asked to use the substitution method, but at the same time know the value of x, let's plug the first system into the second.

x = -6y - 4

6(-6y - 4) - 12y = 24

-36y - 24 - 12y = 24

-48y - 24 = 24

Add 24 to both sides :

-48y = 48

Divide -48 by both sides :

y = -1

Now that we have y, we can replace it into the second system again to get x.

6x - 12(-1) = 24

6x + 12 = 24

Solve for x by first getting rid of 12 from both sides :

6x = 12

Divide 6 by both sides :

x = 2

Therefore, x = 2 and y = -1