of the 50 students in the cafitera, 7 have red hair. If there are 750 students in the school, predict the number of students who have red hair.

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The first step I would do is to subtract the 2x from both sides so the answer is choice D.

Answer:

The scale is 1/60

Step-by-step explanation:

Answer:

a) 3/3=1

b) 10/10=1

c) 19/19=1

Step-by-step explanation:

yes

a) 1

b) 1

c) 1

3 x 1/3 =

First we should understand that 3 in fraction form is 3/1.

(3 divided by 1 is three)

So we can rewrite this as;

3/1 x 1/3 =

Now just multiply across

3/1 x 1/3 = 3/3 = 1

Repeating this same logic we'll come across the following answers

10 x 1/10 = 10/10 = 1

19 x 1/19 = 19/19 = 1

Hope this helps

Answer:

obtuse, right, acute

Step-by-step explanation:

OBTUSE is an angle greater than 90

RIGHT the angle is 90

ACUTE is an angle that is less than 90

Okay, so what you're basically doing is finding out how much salsa is in the pot. To me, it seems like a trick question.

If two quarts is 2 1/2 of salsa, and they're asking you how much salsa is one quart,  you would probably want to simplify 2 1/2. That would come to 2/5. 2/5 simplified would be 0.4 in fractions would total to 1 1/4. That would be your answer.

I hope this helped!

Answer:

Look at image

Step-by-step explanation:

Write the absolute value as piecewise.

Answer:

your answer would be 40.

Answer:

4 x 10 = 40 :)

Answer:

420

Step-by-step explanation:

7 x 10^6 = 7 x 60 = 420

Answer:

7000000

Step-by-step explanation:

10^6 = 1000000

1000000 x 7

is there a photo we can see

Answer:

m= -20/7

Step-by-step explanation:

5m+72=−2m+52

Add 2m to each side: 7m + 72 = 52

Subtract 72 from each side: 7m = -20

Divide each side by 7: -20/7

I hope this helped, please mark Brainliest, thank you!

Answer is B

Everything is positive except for the negative in the center, but the subtracting sign reverses the negative too a positive, so the answer is b

Answer: B and C are correct

Step-by-step explanation:

When you have a - before a parentheses it will cancel out whatever in inside if the parentheses. For example -(90) would be 90 cause it turns the positive number into a negative and -(-90) would be positive 90.

Step-by-step explanation:

If u are looking for factorization this is the way

(x-y)(x-y+1)² -2(x-y)(x-y+1)+(x-y)=

(x-y)[(x-y+1)^2-2(x-y+1)+1]=

(x-y)[(x-y+1)^2-2(x-y+1)+1^2]=

(x-y)[(x-y+1)-1]^2=(x-y)(x-y+1-1)^2

(x-y)(x-y)^2=

(x-y)^3

Answer:

5 years old

Step-by-step explanation:

Able has a younger sister and an older brother.

Able’s age can be represented by x.

Able’s sister (s) is 4 years younger than him. This can be represented as:

s = x - 4 [1]

Able’s older brother (b) is twice as old as he is. This can be represented as:

b = 2x [2]

The combined age of all three siblings is 32. This can be represented as:

x + s + b = 32 [3]

If we replace [1] and [2] in [3], we get:

x + (x - 4) + 2x = 32

4x = 36

x = 9

The age of Able's younger sister is:

s = x - 4 = 9 - 4 = 5

Step-by-step explanation:

5x - 4 > 12 adding 4 to both sides;

5x - 4 + 4 > 12 + 4

5x > 16 dividing both sides by 5;

x > 16/5

12x + 5-4

12x + 1

There are no solutions.

Answer:

D or [1.5, ∞)

Step-by-step explanation:

Got it right on edgenuity

Answer:

The correct option is (B).

Step-by-step explanation:

A type-I-error occurs when we discard a true null-hypothesis (H₀).

The hypothesis in this case are:

H₀: The proportion of Americans that have seen a UFO is 0.002, i.e. p = 0.002.

Hₐ: The proportion of Americans that have seen a UFO is less than 0.002, i.e. p < 0.002.

A type I error will be committed, if we reject the claim that the proportion of Americans that have seen a UFO is equal to 2 in a thousand when that proportion is actually 2 in a thousand.

The correct option is (B).

Answer:

Explained below.

Step-by-step explanation:

When drawing line of symmetry on a figure and reflecting, we have to know that pairs of segments in that figure must have the same length while pairs of angles must have the same measurement. This is to ensure that half of that figure must concise with the other half part of it when that figure is folded across a line of symmetry.

Answer:

The correlation coefficient always takes a value between -1 and 1, with 1 or -1 indicating perfect correlation

Step-by-step explanation:

Answer:

-1 and 1, with 1 or -1

Step-by-step explanation:

The correlation coefficient always takes a value between -1 and 1, with 1 or -1

Answer:

The Customer Acquisition Cost for each customer in demographic group 1

The correct option is c

The Customer Acquisition Cost for Group 2

The  correct option is  b

Step-by-step explanation:

From the question we are told that

The marketing expenses per month for targeting the first group is [tex]E = \$ 30,000[/tex]

The marketing expenses per month for targeting the second group is [tex]F = \$ 60,000[/tex]

The number of customers for the demography of group 1 that will be attracted is N = 1000

The number of customers for the demography of group 2 that will be attracted is M = 1500

Generally the customer acquisition cost for group 1 is

[tex]K = \frac{E}{ N}[/tex]

=>   [tex]K  =  \frac{30000}{ 1000}[/tex]

=>   [tex]K  = \$ 30 [/tex]

Generally the customer acquisition cost for group 2 is

      [tex]Z  =  \frac{F}{ M}[/tex]

=>   [tex]Z  =  \frac{60000}{ 1500}[/tex]

=>   [tex]Z  = \$ 40 [/tex]  

Answer:

Area.

Using Heron's formula to calculate the area, first calculate the semi-perimeter;

= (100 + 60 + 80) / 2

= 120 m

Area = [tex]\sqrt{120 * (120 - 100)(120 - 60)(120 - 80)}[/tex]

= [tex]\sqrt{5,760,000}[/tex]

= 2,400 m²

Cost of fencing.

Perimeter = 100 + 60 + 80 = 240m

Less space for gate = 240 - 5 = 235m

Cost = 235 * Rs 50 per meter

= Rs 11,750

The different units used in your question would lead to an incomprehensible answer so I used meteres for all.

Answer:

17638 its the correct one

Answer:

36x - 27w + 9

Explanation:

Multiply the outside by everything on the inside

Answer:36x-27w+9

Step-by-step explanation:

A negative times a negative is positive and a negative times a positive is negative so you take -9 and times it by each number. -4x, 3w,-1 Keep it in the same order

Answer:

$69

Step-by-step explanation:

23 + 23+23 = $69

Let the number of men and the number of women in the beginning be x and y

Now,[tex]\sf \frac{x} {y} =\frac{5}{2} \\\\\sf

=2x=5y \\\\\sf

=x=\frac{5y}{2}[/tex]

Now, In 2nd case,

No. Of men=x-63 and no. Of women =y-12

Now,the ratio becomes[tex] \frac{x-63}{y-12}=\frac{7}{4} \\\\\sf

=4(x-63)=7(y-12) \\\\\sf

=4x-252=7y-84 \\\\\sf

Putting,\:x=\frac{5y}{2}\:in\: 4x-252=7y-84\:we\: get, \\\\\sf

10y-252=7y-84 \\\\\sf

=10y-7y=252-84 \\\\\sf

=3y=168 \\\\\sf

=y=56 \\\\\sf

=\boxed{Y=56}

[/tex]

Now,we have, 2x=5y

Putting the value of Y=56 in 2x=5y,we get,

[tex]\sf 2x=5\:x\:56 \\\\\sf

x=\frac{5\:x\:56}{2} \\\\\sf

x=\frac{5\:x\: \cancel{56}\:\:28}{ \cancel{2}} \\\\\sf

=x=5\: x\: 28 \\\\\sf

x=140 \\\\\sf

\boxed{x=140}

[/tex]

Hence, the number of men was 140 and the no. of women was 56

Hi...I am from India.. Where are you from?

Answer:

for every 1mm is equal to 20 miles (it is a scale)

Step-by-step explanation:

Answer:

x = 80,

y = 80

Step-by-step explanation:

This is difficult to explain, so here are the theorems used

two lines parallel, with a transversal; alternate interior angles,

verticle angles theorem,

parts - whole postulate,

verticle angles theorem,

parts- whole postulate,

sum angles in a triangle,

supplementary angle, definition straight angle,

parts- whole postulate,

there are many other ways to reach the answer, I just whent this way.

Answer:

x= 80°, y= 100°

Step-by-step explanation:

Please see the attached picture for the full solution.

Answer:

30 cents

Step-by-step explanation:

.60 + .10 + .20/ 3 = .09/3 = .30

Answer:

D

Step-by-step explanation:

Took the test ;)