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3 years ago

Can someone please explain how to find the answer? My old teacher didn’t do it this way and I’m lost :/

Mathematics

1 answer:

Valentin [98]3 years ago

4 0

Answer:

the triangle means "change in". so triangle x means the change in the x values and triangle y means change in y values so yeah mental calculate the difference

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Notebooks cost a $1.20 each this week and they will be on sale for $0.80 what percentage is the sale

ozzi

We can use algebra.

So, what rate time 1.20 = .80

Let x = the rate (in a decimal form)

1.20x = .80

x = .6666666666

Now, we need to multiply by 100 to get a percentage.

66.66 The price is 66% of the regular price.

They marked it off

33.33%

6 0

3 years ago

Read 2 more answers

I need help answering this question please!

iren [92.7K]

It is the graph of p is steeper than the graph of q.

7 0

4 years ago

I need help this Question

Delicious77 [7]

Using the combination formula, it is found that the number of ways to choose the presenters is given by:

C. 462.

The order in which the presents are chosen is not important, hence the <em>combination formula</em> is used to solve this question.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this problem, 6 students are chosen from a set of 11, hence the number of ways is given by:

$C_{11,6} = \frac{11!}{6!5!} = 462$

More can be learned about the combination formula at brainly.com/question/25821700

#SPJ1

8 0

2 years ago

Andrew purchased a car for $19,500 the value of the car depreciates at a rate of 8.6% each year. which equation models the value

pav-90 [236]

If the value depreciates 8.6%, it is 91.4% of what it was the year before. The value can be modeled by
y = 19500(0.914)^x

7 0

4 years ago

Can anyone do this 3 questions please....

Colt1911 [192]

Answer:

23 ) 60 x raised to 3 , y raised 3 , z raised to 3

25 ) 12 p

Step-by-step explanation:

23 ) volume of a rectangular box = l ×b×h

3x square y * 4y square * 5z square x

60 x raised to 3

25 ) area of a square = side × side

(3×4) p

12 p

5 0

3 years ago