a sixth grade class has 12 boys and 24 girls consider this statement: <br />for every two boys there are 4 girls do you agree with this statement?

Answers

Answer 1
so the ratio of boys to girls is 12:24.. now, is that an equivalent ratio as 2 boys for 4 girls? or 2:4?  let's see.

[tex]\bf \cfrac{boys}{girls}\qquad 12:24\qquad \cfrac{12}{24}\implies \boxed{\cfrac{1}{2}} \\\\\\ \cfrac{boys}{girls}\qquad 2:4\qquad \cfrac{2}{4}\implies \boxed{\cfrac{1}{2}}[/tex]

you could start simplifying the 12/24 fraction by dividing by some common multiple, say 2, and get 6/12, then divide by 3 and get 2/4  and stop there.

then you'll notice that 12/24 is really 2/4 in disguise.

Related Questions

Answer:
-7(k+9)=9(k-5)-14k

Answers

-7(k+9)=9(k-5)-14k
-7k-63=(9k-45)-14k
-7k-63=-5k-45
-7k=-5k+18
-2k=18
k=-9

Write out the sample space for the given experiment. use the letter b to indicate boys and g for girls. a couple plans to have 33 children.

Answers

An example of one possible outcome in the sample space:

[tex]\[ \text{bgbbggbggbgbgbggbbgbgbgbbggbgbgb} \][/tex]

To create the sample space for the given experiment, where a couple plans to have 33 children, we'll represent the possible outcomes using the letters "b" for boys and "g" for girls. The sample space for having 33 children can be represented as a sequence of "b" and "g", where each letter represents the gender of a child. Since there are 33 children, the sample space will consist of all possible sequences of 33 "b"s and "g"s.

[tex]\[ \text{bgbbggbggbgbgbggbbgbgbgbbggbgbgb} \][/tex]

Each letter in the sequence represents the gender of a child, with "b" indicating a boy and "g" indicating a girl. The sample space consists of all possible sequences of 33 "b"s and "g"s, representing all possible combinations of boys and girls the couple could have among their 33 children.

calculate each of the following by using scientific notation and product rule. write the answer in scientific notation. 2.3 x 10^4 times 4.2 x 10^6

Answers

remember the associative and commutative properties of multiplcation
ab=ba and (ab)c=a(bc)

also, the exponential rules
[tex](x^m)(x^n)=x^{m+n}[/tex]

also, scientific notation is [tex]a*10^m[/tex] where 1≤x<10 and m is an integer


therefor

[tex](2.3*10^4) \space\ times \space\ (4.2*10^6)=[/tex]
[tex](2.3)(10^4)(4.2)(10^6)=[/tex]
[tex](2.3)(4.2)(10^4)(10^6)=[/tex]
[tex](9.66)(10^{4+6})=[/tex]
[tex]9.66*10^{10}[/tex]

Sue and jonah shose nummbers for a place value game.Sue chose the number one hundred.Jonah chose five million for his number.who chose the greater number

Answers

Jonah chose the greater number, since that number is farther to the left of the number line than Sue's number.

The time to fly between new york city and chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 minutes. what is the probability that a flight is less than 135 minutes

Answers

Do you have multiple choices?

Given the point and it''s image, determine the scale factor. A (3, 6) A'' (4.5, 9) G'' (3, 6) G (1.5, 3) B (2, 5) B'' (1, 2.5).

Answers

Put the value of the letters with " over the original
So for A we have 3 in the front and 4.5 for A"
4.5/3 = 1.5
We can check if this is actually the scale factor but using the other numbers
The second numbers for A and A" are 6 and 9
6 * 1.5 = 9
So for point A it is 1.5
Use the same thing for G. That gives you 2
For B, you get 0.5
So the scale factors are 1.5, 2, and 0.5

Final answer:

The scale factors for the points given are 1.5 for A to A', indicating an enlargement, and 0.5 for B to B', indicating a reduction. G to G' also indicates a reduction with a factor of 0.5.

Explanation:

To determine the scale factor given the point and its image, you can find the ratio between the coordinates of the image and the original coordinates. Let's analyze the pairs of points you've provided:

A (3, 6) and A' (4.5, 9)

G (1.5, 3) and G' (3, 6)

B (2, 5) and B' (1, 2.5)

We can find the scale factor by dividing the x-coordinates of the image by the original x-coordinate and doing the same for the y-coordinates. For point A:

Scale factor for x: 4.5 / 3 = 1.5

Scale factor for y: 9 / 6 = 1.5

For point G, we see that it's actually the reverse (original to image), but you can still calculate:

Scale factor for x: 3 / 1.5 = 2

Scale factor for y: 6 / 3 = 2

Lastly, for point B:

Scale factor for x: 1 / 2 = 0.5

Scale factor for y: 2.5 / 5 = 0.5

So, the scale factors for A to A' and for B to B' are 1.5 and 0.5, respectively, showing that A to A' is an enlargement while B to B' is a reduction. For G to G', the reverse is a reduction with a factor of 0.5.

a number x plus 9 is 3036 write equation solve for x

Answers

3036-9=x Hope this helped
Hi Lolgirl44

The equation would be 3027 + 9 = 3036

I figured out this answer by subtracting 3036 - 9 which is 3027 so to check back and make sure I was right I added 9 + 3027 and it equaled 3036 so I knew I was 100% true on that so x + 9 = 3036 is really 3027 + 9 = 36 which is true and that would be your answer.

Prime factorization practice all factors 1.- 25 2.- 49 3.- 7 4.- 13 5.- 24 6.- 48 7.- 168

Answers

Do u still need the answer

You have 10,600 to 10,425 find the percent decrease

Answers

Step 1) Find the amount decrease by subtracting
10600 - 10425 = 175

Step 2) Divide the result of step 1 over the original value (10600) to get 175/10600 = 0.016509
This value is approximate

Step 3) Multiply the result from step 2 by 100
0.016509*100 = 1.6509%
This value is approximate

The percent decrease is roughly 1.6509%

HELP ME PLEASE!!
-1.3 ≥ 2.9 -0.6r
Graph the solution

Answers

Final answer:

The solution to the inequality -1.3 ≥ 2.9 -0.6r, is r ≤ 7. This is represented on a graph by placing a closed circle on 7 and drawing a line to the left, to represent all numbers less than 7.

Explanation:

To solve this inequality, -1.3 ≥ 2.9 -0.6r, first, we isolate the variable r (which represents solving for 'r'). Start by subtracting 2.9 from both sides of the inequality.

This gives us -4.2 ≥ -0.6r. Then divide both sides by -0.6. However, remember when dividing or multiplying an inequality by a negative number, the direction of the inequality changes. So, it becomes r ≤ 7.

When graphing this inequality, you will place a closed circle at 7 (showing that point is included) and draw a line to the left from 7, extending to infinity (since all numbers less than 7 satisfy the inequality).

The graph represents the mathematical solution to the inequality.

Learn more about Inequality here:

https://brainly.com/question/40505701

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what is 63.75 minus 13.25 please really need help.

Answers

63.75 - 13.25 = x

.75 - .27 = .50

63 - 13 = 60

x = 60.50

hope this helps
The correct answer is 50.5! Good luck :)

Sean lives about 15.5 miles from the airport. Which number rounds to 15.5 when rounded to the nearest tenth?

Answers

ANSWER(S):

15.51

EXPLANATION(S):

15.51 rounded to nearest tenth is 15

*more than one answer

During first semester, the ratio of the number of students in our class to the number of students in gym class was 2 to 7. However, the art classes were really small, and the gym classes with large, so the principal change the students classes for second semester. In second semester, the ratio of the number of students in our class to the number of students in gym class was 5 to 4. If 75 students were in our class second semester, how many were in our class in gym class first semester.

Answers

5/4 = 75/x....5 in art to 7 in gym = 75 in art to x in gym
cross multiply
5x = 300
x = 300/5
x = 60..... according to 2nd semester, there are 75 in art and 60 in gym....total of (75 + 60) = 135 total students in the two classes.

so in 1st semester, the ratio was 2:7....added = 9
2/9(135) = 270/9 = 30 in art class <==1st semester art
7/9(135) = 945/9 = 105 in gym class <== 1st semester gym

A car traveled 63 miles on 3 gallons of gas. What proportion can you set up to determine how many miles, m, the car can travel on 7 gallons of gas?

Answers

147 miles is how many miles the car can travel
63/3=21
21 mile per gallon 
7 gallons X 21 =147

What is the next number in the sequence: 4, 11, 25, 53...?

Answers

Answer:

109

Step-by-step explanation:

Given that there is a sequence of numbers as

4,11,25,53,...

We have to find the next number.

To find the next number, let us see the pattern from the given four numbers

We have

I number = 4

II number = 4+7

III number = II number + 2(7)

Iv number = III number +4(7)

So if we guess this pattern continues the next number namely v number would be

V number = IV number +8(7)

=53+56

109

i.e. I number is added by 7, II number by 2(7), III number by 2^2(7)

hence next number 2^3(7)

Answer is 109

The next number in the sequence is:

109

Obtaining the sequence

As can be seen, the first number is a selected number, which in this case is four, to which seven are added to obtain:

4 + 7 = 11

Then double 7 is added to that number, that is 14, with which you get:

11 + 14 = 25

The double of 14 is added to that number, which is 28, so the next number is:

25 + 28 = 53

And to get the next number, double 28 must be added, which is 56, therefore:

53 + 56 = 109

By this reason, the next number in the sequence is 109.

If you want to learn more about Sequences, you can visit the following link: https://brainly.com/question/16130064

25/5 as a mixed number

Answers

25/5 as a mixed number would be 5.
[tex]\bf \textit{well, 5 goes into 25 \underline{5 times}, with a \underline{remainder} of 0} \\\\\\ 5\frac{0}{5}\implies 5+\frac{0}{5}\implies 5+0\implies \implies 5[/tex]

Six less than the product of 9 and a number is equal to 4

Answers

9x - 6 = 4

9x = 4 + 6

9x/9 = 10/9

x = 10/9

hope this helps
if you're searching for the equation, then: 9x - 6 = 4

what is bigger 4/5 or 5/9

Answers

4/5

It is 0.8

5/9
is 0.555....
Work: 4/5 or 5/9
Find common denominator
Common denominator is 45
4/5×9/9= 36/45
5/9×5/5=25/45
36/45 is bigger than 25/45
Answer: 4/5
Check your work:

If g(x)=5x-3 and h(x) = x find (goh) (4)

Answers

Goh means

G(h(4))
G(4)
5*4-3
17

In this composition, we first apply the function h, which is simply the identity function, to the input 4, resulting in 4. Then, we apply the function g to this result. As g(x) = 5x - 3, g(4) equals 17. Hence, (g◦h)(4) = 17.

To find (g◦h)(4), which represents the composition of functions g and h evaluated at x = 4, we first need to find h(4), then substitute the result into g(x).

Given h(x) = x, h(4) = 4.

Now, we substitute h(4) into g(x).

So, g(h(4)) becomes g(4).

Given g(x) = 5x - 3, substituting x = 4 into g(x), we get g(4) = 5(4) - 3 = 20 - 3 = 17.

Therefore, (g◦h)(4) = 17.

A mountain climber climbed down a cliff 50 feet at a time . He did this 5 times in one day . What is the overall change in his elevation ?

Answers

-150 if im correct, it goes down 5 times and thats what i got

find the intercept of the line 15.579x +23.354y=13.997. please round your answer

Answers

[tex]\bf \stackrel{x-intercept}{15.579x+23.354(0)=13.997}\implies 15.579x+0=13.997 \\\\\\ x=\cfrac{13.997}{15.579}\implies x\approx 0.89845304576673727454\implies x\approx \stackrel{rounded~up}{1}[/tex]

What is the equivalent decimal for 67/100,1/100,81/1000,9 6/10, 3 21/100,5 3/100, 4 77/1000

Answers

To find the decimal equivalent, you would just divide the numerator by the denominator.

67/100: If you divide it, it would be 0.67, and so on.

1/100: 0.01

81/1000: 0.081

9 6/10: 9.6

3 21/100: 3.21

5 3/100: 5.03

4 77/1000: 4.077
1. (0.67)
2. (0.01)
3 (0.081)
4. (9.6)
5. (3.21)
6. (5.03)
7. (4.077)

the moon is 250,000 miles away. how many feet is it from earth

Answers

225,623 miles. Hope this helps.

To convert the distance from the Earth to the Moon from miles to feet, multiply 250,000 miles by the number of feet in a mile, which is 5,280. This calculation yields a result of approximately 1.32 billion feet.

The distance from the Earth to the Moon is given as 250,000 miles. To convert this distance from miles to feet, we use the fact that there are 5,280 feet in a mile. Thus, we multiply the distance in miles by the number of feet per mile.

To find the distance in feet, perform the following calculation:

Multiply the distance in miles by the number of feet per mile: 250,000 miles × 5,280 feet/mile.

This equals 1,320,000,000 feet.

Therefore, the Moon is approximately 1.32 billion feet away from Earth.

Your car gets about 30 miles per gallon. You are planning to drive to see your friends who live about 930 miles away. How many gallons of gas will you need to purchase to make the trip to see your friends and return home? State your anwser to the nearest gallon?

Answers

(930 divided by 30= 31) 31 multiplied by 2 is 62. So 62 is the answer

For the round trip of 930 miles each way, you will need to purchase about 62 gallons of gas, given a car's gas mileage of 30 miles per gallon.

To calculate the gallons of gas needed for the round trip, follow these steps:

Calculate the total distance for the round trip.

The round trip distance is twice the one-way distance.

Round trip distance = 2 * 930 miles = 1860 miles.

Find the number of gallons required for the round trip.

Divide the total distance by the car's gas mileage (miles per gallon).

Gallons required = Round trip distance / Gas mileage

Gallons required = 1860 miles / 30 miles per gallon

Perform the division.

Gallons required = 62 gallons.

Round the answer.

Since you cannot purchase a fraction of a gallon, round the answer to the nearest gallon.

You will need to purchase approximately 62 gallons of gas for the round trip.

So, to make the trip to see your friends and return home, you will need to purchase about 62 gallons of gas.

To know more about gallons of gas:

https://brainly.com/question/17116708

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x/21 = 3/63 solve the proportion

Answers

x/21 = 3/63
63x = 21 * 3
63x = 63
x = 63/63
x = 1
x/21 = 3/63
x = 3*21/63 = 63/63 = 1

there are some numbers that can be made into only one array. Find all of these numbers up to 50.

Answers

Numbers that can be made into only one array are called prime numbers.

The prime numbers up to 50 are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43 and 47

40.8 gallons of paint among 8 containers

Answers

divide the two

40.8 / 8 = 5.1 gallons per container

Is the product of an irrational number with a rational number always an irrational number??

Answers

Yes the product of any rational number with an irrational number is always irrational. For example, 2/3 times pi is going to be an irrational result. In this case simply (2/3)pi or (2pi)/3

So the template is
(rational)*(irrational) = irrational

-------------------------------------------------------------------------------------

Here's proof of the claim. Let's make p, q, r, s to be integers. Let's also make m be some irrational number

For now let's assume that multiplying a rational number with an irrational number leads to a rational result. The aim is to use contradiction to prove the opposite.

p/q is rational by definition (make q nonzero)
so is r/s
m is irrational

So the claim so far is
(p/q)*m = r/s

Now multiply both sides by the reciprocal of p/q. That would be q/p
(p/q)*m = r/s
(q/p)*(p/q)*m = (q/p)*(r/s)
m = (q*r)/(p*s)
The right side of the last equation is a rational number since q*r and p*s are integers (p and s are nonzero)

But m was originally irrational. So this is where the contradiction kicks in. This invalidates the initial claim "the product of a rational and irrational number is rational" proving the claim made by your textbook. 

So this completes the proof. 

Multiplication Property of Inequality -1/2x<-12 simplify it all the way through

Answers

Multiply both sides by -2. Doing this will flip the inequality sign. The flip always happens when you multiply both sides by a negative number. 

So we'll go from this
(-1/2)x < -12
to this
x > 24

which is the final answer

Note: If you need to graph x > 24, then plot 24 on the number line. Draw an open circle at 24 and shade to the right of this open circle. The open circle tells the reader "the endpoint 24 is not part of the solution set". 

Edit: the full steps are...

(-1/2)x < -12
-2*(-1/2)x > -2*(-12)
(-2*-1/2)x > 24
2/2x > 24
1x > 24
x > 24

Let me know if that helps or not. Thank you.

3.4 divided by 0.16728

Answers

The answer is 20.32520325 but rounded that would be 20.33 depending on what your teacher wants you to round to
20.32520 but you put a line above the 32520
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