MATHEMATICS MIDDLE SCHOOL

Josie is getting her hair cut andstyled. She wants to give a 20% tip
to her stylist. If the haircut costs
$15.00, how much tip should she give?​

Answers

Answer 1
Answer:

Answer:

3

Step-by-step explanation:

10 pecent =1.50 so times 2=20%=3

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Kirk's grandparents are really enjoying their portable music players and have downloaded many more albums. Maude now has 225 albums, 135 of which are heavy metal. Claude now has 420 albums, 270 of which are heavy metal. Which of Kirk's grandparents has a higher probability of listening to heavy metal?

Answers

To find who has a higher probability, we need to find the percentage of each grandparent's music that is metal.

Maude:
135/225 = 0.6 = 60%

Claude:
270/420 = 0.64 = 64%

Assuming each album has the same number of tracks, Claude has a higher probability of listening to heavy metal.

A sequence of transformations which moves ΔRST onto ΔXYZ shows that ΔRST ≅ ΔXYZ. Which part of the triangles are congruent by CPCTC?

Answers

Answer:

Here's what I get  

Step-by-step explanation:

CPCTC is an acronym for Corresponding Parts of Congruent Triangles are Congruent.

If ΔRST ≅ ΔXYZ then

∠R = ∠X

∠S = ∠Y

∠T = ∠Z

RS  = XY

ST  = YZ

RT  = XZ

Final answer:

To prove ΔRST ≅ ΔXYZ, perform a sequence of transformations and apply CPCTC to identify congruent parts.

Explanation:

To prove that ΔRST ≅ ΔXYZ, we need to perform a sequence of transformations that move ΔRST onto ΔXYZ. Once the triangles are superimposed, we can use the Corresponding Parts of Congruent Triangles are Congruent (CPCTC) to identify congruent parts.

CPCTC states that if two triangles are congruent, then their corresponding parts (sides and angles) are also congruent. In this case, the parts of ΔRST that are congruent to the corresponding parts of ΔXYZ are:

  • Side RS is congruent to side XY
  • Side ST is congruent to side XZ
  • Angle R is congruent to angle X

Learn more about Congruent Triangles here:

brainly.com/question/31700817

#SPJ3

why can you write a subtraction problem as an addition problem? How do you write a subtraction problem as an addition problem?

Answers

To write a subtraction problem as an addition problem, just switch the numbers a little. For example:

11 - 5 = ?

Just write it like this:

5 + ? = 11

These two problems will get the same answer. Watch:

11 - 5 = 6

5 + 6 = 11

Both of these work because all three numbers ( two main ones and the answer) Can be switched around in different orders depending on the operation.

Hope this helps, WyattMarine501

Hi there!

This is why...

5+?=30

30-5=?

How you do it...

5+25=30

30-5=25

Help! I have no Idea what is the answer

Answers

the answer is B. 1,376

the mean is the average of a group of numbers.
to get the mean you have to add all of the numbers together and divide them into how ever many numbers there are in the group.
i hope i helped

The quotient of 700 and a number??????

Answers

700/n is your answer

How do you set up this equation ?

Answers

Given:

Quadrilateral PQRS is a rhombus.

To find:

The value of y.

Solution:

In the rhombus PQRS,

PS = 10y and SR = y + 45

Property of rhombus:

All sides are congruent.

⇒ PS = SR

⇒ 10y = y + 45

Subtract y from both sides.

⇒ 10y - y = y + 45 - y

⇒ 9y = 45

Divide by 9 on both sides.

$\Rightarrow (9y)/(9) =(45)/(9)

⇒ y = 5

The value of y is 5.
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