MATHEMATICS MIDDLE SCHOOL

What is 12=0.5a?help?

Answers

Answer 1

Answer:

The value of a in the equation 12 = 0.5a is,

⇒ a = 40

We have to given that;

The expression to solve for a is,

⇒ 12 = 0.5a

Now, We can simplify and find the value of a as,

⇒ 12 = 0.5a

⇒ 0.5a = 12

Divide by 0.5;

⇒ a = 12 / 0.5

⇒ a = 120/5

⇒ a = 40

Thus, The value of a in the equation 12 = 0.5a is,

⇒ a = 40

Learn more about the equation visit:

brainly.com/question/28871326

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Answer 2

Answer: the answer is 24 becuse we move 0.5 so 12 ÷0.5 =24

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Triangle ABC below is reflected across the y-axis and then translated 1 unit right and 2 units down.a) Write the coordinates of the vertices of the image after reflection.
b) Write a rule for the translation. Use arrow notation.
c) Write the coordinates of the vertices of the new image after translation.

Answers

The correct answers are: A) A'(-1, 3); B'(-4, 5); C'(-3, 1); B) <1, -2>, C) A''(0, 1); B''(-3, 3); C''(-2, -1).

Explanation:
When you reflect an image across the y-axis, it negates the x-coordinate. This means all of the x-coordinates will become the opposite sign after the reflection.

Since the translation is 1 unit right, that is adding 1 to the x-coordinate; since it is 2 units down, that is subtracting 2 from the y-coordinate. Once we add 1 to each x-coordinate and subtract 2 from each y-coordinate, we end up with the vertices listed above.

The coordinates of the vertices of the new image after translation and reflection :

A''(0, 1); B''(-3, 3); C''(-2, -1).

Further explanation

A reflection is an example of a transformation

Reflection is the process of mirroring each point on the geometry of a certain line.

The original figure is called the pre-image and the final figure is called the image

The image will be congruent with the pre image and the distance from the image to the mirror axis is the same as the distance from the pre image to the mirror axis

• The equation of reflection across the y-axis

x '= -x

y '= y

can be written

$\large {\boxed {\bold {r_ {y-axis} A (x, y) \rightarrow A '(-x, y)}}$

While the transformation itself is the displacement of the object given a distance and direction (for example up or down)

So each point is moved in the same distance and direction

Can be formulated :

A(x,y)⇒ T(a,b) ⇒ A'(x+a,y+b)(T=translated)

Triangle ABC below is reflected across the y-axis and then translated 1 unit right and 2 units down.

So the stages

1. reflected across the y-axis first and then

2. translated 1 unit right and 2 units down.(T(a,b) ⇒a=1,b=-2)

reflected across the y-axis

Coordinate A(1,3),B(4,5),C(3,1)

reflected becomes :

A(1,3)⇒A'(-1,3)

B(4,5)⇒B'(-4,5)

C(3,1)⇒C'(-3,1)

translated (T(a,b) ⇒a=1,b=-2)

A'(-1,3) ⇒A''(-1+1,3-2)⇒A"(0,1)

B'(-4,5) ⇒B''(-4+1,5-2)⇒A"(-3,3)

C'(-3,1) ⇒ C"(-3+1,1-2)⇒C"(-2,-1)

Learn more

Transformation from function

brainly.com/question/10904859

the rule for the reflection

brainly.com/question/4210177

the transformation rule

brainly.com/question/12537916

Keywords: reflection.,translation, the coordinates

Joey has $254 to spend at the video game store. He was able to buy 9 video games and had $29 left. How much did each game cost? (Please help :()

Answers

If he had $254 to spend, and at the end (after spending) he was left with $29, then that means he spent $225 on video games. That's because we're taking away what he has now from what he had originally to spend, which leaves us with how much he spent on games in total.

So, if we know that he spent $225 on 9 video games, we can work out how much each game costs by dividing the amount he spent ($225) by the number of games (9) to give us the final answer:

$225 ÷ 9 = $25

He spent $25 on each game. Hope that helped! :)

Answer: $25

First we figure out how
much money Joey spent:
254 - 29 = 225

now we divide that by 9
225 / 9 = 25

(a brainliest would be appreciated)

Rafael took 4 pumpkin pies to a family gathering. If he divides each pie into six equal size slices, how many slices can he serve?

Answers

The process is 4*6=24 slices

How do you decide which of two numbers is greater when: a) both numbers are positive b) both numbers are negative
c) one number is positive and one number is negative

Answers

A) The positive number furthest away from 0 is the greatest.

B) The negative number closest to 0 is the greatest.

c) Any positive number is always greater than any negative number.

Grapes were on sale for $0.92 per pound . If Jeff purchased 0.75 pounds , how much did he pay for the grapes ?

Answers

The answer would be $0.69 because that is 75% of .92

Sammy picks blueberries and cherry tomatoes. • She earns $3.00 for each pint of blueberries and $2.00 for every pint of cherry tomatoes she picks.
• Sammy earned a total of $28.00.
• She picked twice as many pints of tomatoes as blueberries.
How many pints of blueberries did Sammy pick?