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3 years ago

More help please!!!!

Mathematics

1 answer:

Amanda [17]3 years ago

3 0

n% = percentage of people that chose hot chocolate

150 x n% = 72

n / 100 = 72 / 150

n = 48

= total people x hot Choco percentage

= 500 x 48%

= 240

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IF YOU COULD HELP OUT THAT WOULD BE GREAT :)

grin007 [14]

What’s the question hun?

4 0

3 years ago

Select the correct answer from each drop-down menu. Shape I is similar to shape II. The sequence that maps shape I onto shape II

AURORKA [14]

Answer:

Scale factor 2.

Step-by-step explanation:

The vertices of shape I are (2,1), (3,1), (4,3), (3,3), (3,2), (2,2), (2,3), (1,3).

The vertices of shape II are (-4,-2), (-6,-2), (-8,-6), (-6,-6), (-6,-4), (-4,-4), (-4,-6), (-2,-6).

Consider shape I is similar to shape II. The sequence that maps shape I onto shape II is a 180 degree clockwise rotation about the origin, and then a dilation by a scale factor of k.

Rule of 180 degree clockwise rotation about the origin:

$(x,y)\rightarrow (-x,-y)$

The vertices of shape I after rotation are (-2,-1), (-3,-1), (-4,-3), (-3,-3), (-3,-2), (-2,-2), (-2,-3), (-1,-3).

Rule of dilation by a scale factor of k.

$(x,y)\rightarrow (kx,ky)$

So,

$(-2,-1)\rightarrow (k(-2),k(-1))=(-2k,-k)$

We know that, the image of (-2,-1) after dilation is (-4,-2). So,

$(-2k,-k)=(-4,-2)$

On comparing both sides, we get

$-2k=-4$

$k=2$

Therefore, the scale factor is 2.

4 0

4 years ago

Read 2 more answers

I)x-1 by 4=3<br>ii)3x+6 by 2=3 by 2<br>iii)3x-1by5=2x+3by7

suter [353]

Answer:

13,-1,2

Step-by-step explanation:

i hope it is helpful......for you

3 0

3 years ago

The mean GPA for 127 residents of the local apartment complex is 1.6. What is the best point estimate for the mean GPA for all r

madam [21]

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

The Central Limit Theorem established that, for a normally distributed random variable X, with mean and standard deviation, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation ;

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

The sample of 112 residents has a mean GPA of 1.7.

By the Central Limit Theorem, the best point estimate for the mean GPA for all residents of the local apartment complex is 1.7.

Learn more about Mean:

brainly.com/question/4313883

#SPJ4

4 0

2 years ago

An art class is planning to paint a rectangular mural with an area of 60 square feet. It has to be at least 4 feet high but no m

Strike441 [17]

Hello!

There are three possible lengths.

We need to keep in mind that the total area cant exceed $60 ft^{2}$ , so, knowing that, we just need to find numbers that can be multiplied giving as result 60.

First combination:

$4ft(height)X15ft(width)=60 ft^{2}$

Second combination:

$5ft(height)X12ft(width)=60 ft^{2}$

Third combination:

$6ft(height)X10ft(width)=60 ft^{2}$

Have a nice day!

7 0

3 years ago