Why can you multiply both quantities in a ratio by the same number to find an equivalent ratio? Please help I have this for homework and I am very frustrated

Answers

Answer 1

Answer:

  Multiplying by 1 does not change the ratio

Step-by-step explanation:

Multiplying a/b by c/c gives the equivalent ratio (ac)/(bc) because c/c is 1, the multiplicative identity element. Multiplying by 1 does not change the ratio.

Answer 2

Answer:help me pls then ill help u

Step-by-step explanation:

A train traveled at a constant speed for six hours and traveled a distance of 408 miles. What is the best estimate of the number of miles the train could travel in 2.5 hours? *


Related Questions

I thought I had the right answer but apparently I don't. Help would be greatly appreciated. Thank you!

Answers

Answer:

1/36

Step-by-step explanation:

To get a sum of 2, both dice must roll a 1.

The probability of a 1 on the first die is 1/6.

The probability of a 1 on the second die is 1/6.

Therefore, the probability of rolling both 1s is:

P = 1/6 × 1/6 = 1/36

Number 5 please help need answers thanks!!!!Have a great day!


Answers

Answer:

3 = 275, 5 = 305, 8= 350, 12 = 410

Step-by-step explanation:

3x15+230, (305-230)/15, im bored plz just take the answer

What is the domain of f(x) + g(x)

Answers

Answer:

All real numbers except 6

Value of (x-y)2 is,please answer

Answers

Answer:

2 x − 2 y

I hope this helps! UwU

If you can give brainliest that will be awesome

Hey there!☺

[tex]Answer:\boxed{2x-2y}[/tex]

[tex]Explanation:[/tex]

[tex](x-y)2[/tex]

(x + -y)2 Make y negative

(x)(2) + (-y)(2)    Separate with parenthesis.

2x - 2y

Hope this helps!

Jeanne has $12.50 in her bag. How much money does she need to buy a game that costs $72.60?

Answers

Answer:

60.1

Step-by-step explanation:

Just get 72.60 and subtract 12.50

At Wayside High School, 600 boys were asked to
name their favorite food. The results showed that
24 of the boys named pizza as their favorite food.
What percentage of the boys in the survey named
pizza as their favorite food?

Answers

Answer:

4%

Step-by-step explanation:

Percentage = Number of boys who named pizza [tex]\div[/tex] Total number of boys [tex]\times 100[/tex]

Percentage = [tex]\frac{24}{600} *100=0.04*100=4[/tex]

Thus, 4% of the boys named pizza as their favourite food.

Round 3,567 to the nearest thousand

Answers

The answers is 4,000.

[tex]\text {Hey there!}\\\\\text {3,567 to the nearest thousand}\\\text {First, we look at the 5 in the hundreds.}\\\text {3567 nearest thousand is 4,000 because if the number is 5, it will goes to the end.}\\\\\text {Hope this helps!}\\\text {-TestedHyperr}[/tex]

2(b + v) = X
solve for b

Answers

Answer:

b = x/2 - v

Step-by-step explanation:

2(b+v) = x

b + v = x/2

b = x/2 - v

Five boxes of crackers cost $9 at this rate how much do 20 boxes cost

Answers

5 1.80, the crackers cost $1.80 per box: 20 3 1.80 5 36. So, 20 boxes cost $36.00.

Answer:

$36

Step-by-step explanation:

To find how much one box costs you divide 9÷5 = 1.8

Then you take 1.8 × 20 = 36

If you want me to go over it in depth, let me know! Have a great day!

Miranda needs to cut strips of paper that are 1/8 of an inch. If she has piece of paper that is 7 and 3/4 inches long. How many strips of paper can she make? *

Answers

Answer:

62

if you turn 1/8 and 7 3/4 to decimals they turn into 1/8=0.125 and 7 3/4=7.75 and 7.75/0.125=62

Simplify the expression. Write your answer as a complex number.

2 times the square root of 25 plus the square root of negative 16

Answers

Answer:

d

Step-by-step explanation:

Water covers 70.8%, or about 3.61 108 km2, of the Earth's surface. Approximate the total surface area of the Earth. (Round your answer to the nearest million.)

Answers

This question was not properly written

Complete Question

Water covers 70.8%, or about 3.61 × 10⁸ km², of the Earth's surface. Approximate the total surface area of the Earth. (Round your answer to the nearest million.)

Answer:

510,000,000 million km²

Step-by-step explanation:

Let us represent the total surface area of the earth as = x

We are told in the question that:

Water covers 70.8%, or about 3.61 × 10⁸ km², of the Earth's surface.

70.8% = 0.708

Hence,

0.708 × x = 3.61 × 10⁸

x = 3.61 × 10⁸/0.708

x = 361000000/0.708

x = 509,887,005.65km²

Therefore, the total surface are the earth approximately to the nearest million = 510,000,000 million km²

1.
The ratio of pink flowers to yellow flowers is 6:2, if there are 48 pink flowers how many
yellow flowers are there?

Answers

The answer is 16 yellow flowers

Answer:

16 yellow flowers

Step-by-step explanation:

[tex]Pink: yellow\\6\:\::\:2\\\\Total\:ratio = 6+2 = 8\\\\48 \:pink\: flowers[/tex]

First calculate total no of flowers

[tex]\frac{6}{8} \times x = 48\\\\\frac{6x}{8} =48\\\\Cross\:Multiply\\6x = 48\times 8\\6x = 384\\\\Divide\:both\:sides\:of\:the\:equation\:by\:6\\\frac{6x}{6} = \frac{384}{6} \\\\x = 64\\\\Total \:flowers = 64[/tex]

Calculate no of yellow flowers

[tex]Total\:flowers-Pink\:flowers = Yellow\:flowers\\\\Yellow\:flowers = 64 - 48\\Yellow\:flowers =16[/tex]

If the area of a rectangle is 64 then the length is 8 and the width is 8 counter examples

Answers

Answer:

64

Step-by-step explanation:

Identify the like terms in the expression:
-12x +15y -17x +16y

Answers

Answer:

-29x+31y

Step-by-step explanation:

= -12x-17x+15y+16y

=-29x+31y

WILL MARK BRAINLIST PLSS HELP

Answers

1.)A   2.)B.  3.)C.  4.)C.   5.)B

I think the only one i might of gotten wrong is 4. if any are wrong. please let me know for future reference.

~ItsOniiSama ❤

Hope this helps! If so please ,mark brainliest!

Answer:

1. A

2. A

3. C

4. C

5. B

Step-by-step explanation:

i do beleive these are the correct answers

Kylie is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also pays a cost per phone produced for materials and labor. The daily fixed costs are $600 and and the total cost of producing 4 phones in a day would be $1600. Write an equation for C,C, in terms of p,p, representing total cost, in dollars, of producing pp phones in a given day.

Answers

Answer:

C= 400P+ 600

Step-by-step explanation:

In this problem, we are to model the equation for the total cost of producing a phone

Given that the fixed cost is $600

Also, the total cost of producing 4 phones in a day is $1600

hence the cost of producing 1 phone would be 1600/4= $400

the equation for producing p phones would be

C= 400P+ 600

This equation is the same as the equation of a straight line Y=mx+c

with C=y

400= m= gradient

P=x, the dependent variable

600= c the constant term.

Answer:

c=250+600

Step-by-step explanation:

Solve for x.
(5x - 25)
(7x+4)

Answers

Answer: x is 5 if this isnt right then im sorry.

I NEED HELP ASAP PLEASEEEE
Evaluate the expression for m = –38.
–23(m + 39) =

Answers

Answer: -23

Step-by-step explanation:

Since we are given the value of m, all we have to do is to plug m into the expression and solve.

-23(-38+39)                  [parenthesis]

-23(1)                            [multiply]

-23

Now, we know that the expression is -23 when m=-38.

Bart and Sam played a game in which each player earns or loses points in each turn. A player's total score after two turns is the sum of his points earned or lost. The player with the greater score after two turns wins. Bart earned 23 points and lost 60 points. Sam earned 55 points and lost 85 points. Which person won the game? Explain.

Answers

Hi it’s 34 explanations is ok ya know
BART WON THE GAME

60-23=37WHILST SAM

85-55=30

WHICH MEANS BART HAD MORE POINTS THAN SAM.

A BRAINLIEST WILL HELP.

DON'T HESITATE TO ASK FOR FURTHER EXPLANATION.

I HOPE IT HELPED

Find the distance between the points (8,3) and (2,7) the answer must be a whole number

Answers

Answer:

let (8,3) be (x1,y1)

(2,7) be (x2,y2)

using distance formula

√[(x2-x1)²+(y2-y1)²]

√(2-8)²+(7-3)²

√(36+16)

√52

Giving 40 points to whoever can solve a through k I need it now

Answers

Answer:

a: -1

b: 3

c: DNE

d: -1

e: 1

f: 1

g: 1

h: 2

i: -infinity

j: 0

k: infinity


Helllllllp ASAP!!!!!!!!!!!!!!!

Answers

Answer:

I think the fourth one. But I am not sure though..

Answer:

3) -2/3

Step-by-step explanation:

hope it help.....

Dominique had $250 to spend at the mall. She bought jeans for $27.50, a sweater for $32.75, and 3 shirts for $12.50 each. How much money does she have left after shopping?

Answers

Answer:

152.25

Step-by-s152.25tep explanation:

Answer:

Dominique has $162.25 dollars left after shopping.

Step-by-step explanation:

250 - 17.50 - 32.75 - 12.50 x 3

250 - 17.50 - 32.75 - 37.5

232.5 - 32.75 - 37.5

199.75 - 37.5

162.25

in a grocery store, a P250.000 case of soft drinks is labelled, "get a 20% discount" what is the discount? what is the price of the case of soft drinks?

with solution​

Answers

100%-20%=80%
discount:250*20%=50
price of soft drinks:250*80%=200

Solve the equation for y:
2x + 5y = 20

Answers

Answer:

y = [tex]\frac{20-2x}{5}[/tex]

Step-by-step explanation:

Given

2x + 5y = 20 ( isolate the term in y by subtracting 2x from both sides )

5y = 20 - 2x ( divide both sides by 5 )

y = [tex]\frac{20-2x}{5}[/tex]

The Answer will be y=4

The pressure exerted on an object under water increases by 1 atmosphere every 33 feet below the surface of the water. At sea level, the pressure is l atmosphere. Which equation gives the total pressure p, in atmospheres, exerted on an underwater object at a depth of f feet below sea level? A) P 33 B) p 33f C) p 33f+ 1

Answers

Answer:

ooooooooooooooooooooooooo

The linear function that gives the total pressure exerted on an underwater object at a depth of f feet below sea level is given by:

p = l + 0.0303f.

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem:

The pressure changes by 1 for each 33 feet of depth, hence m = 1/33 = 0.0303.The initial pressure is of l, hence b = l.

Thus, the function is given by:

p = l + 0.0303f

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ2

an elevator traveled up to the 9th floor and then down to the third floor. how many floors did the elevator travel down​

Answers

Answer:

in went down 6 floors.

Step-by-step explanation:

9-6=3 so that's how I found the answer.

Why didn't the butterfly go to the dance? show your thinking!

Answers

Answer:

its math roll dont wory ill show with no math and explantion its just awnsers

Step-by-step explanation:

8 i

4 t

11 w

1 a

6 s

9 a

14 m

7 o

10 t

3 h

13 b

5 a

2 L

I couldnt get the last one but i did in the same order as it has it

To solve the question we used the criteria that the solution depends upon the sign, if negative number is greater than sign will be a minus .

if positive number is greater than sign will be a plus.

The sign while addition and subtraction depends on the larger number .

If negative number is greater than sign will be a minus .

if positive number is greater than sign will be a plus.

1.

A. -5+2=-3

B. 7+-3= 4

C. -4+-6=-10

2.

A. 1+-8=-7

B. -6+-12=-18

C. -2+9=7

3.

A. -7+6=-1

B. 5+-8=-3

C. 12+13=25

4.

A. -10+-10=-20

B. 17+-1=16

C. -11+5=-6

5.

A. 4+-9=-5

B. -7+-15=-22

C. -3+12=9

6.

A. 16+-8 = 8

B. -5+20=15

C. -6+6=0

Similarly we can do the remaining solutions.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

find the y-intercept of the linear equation -x+8y=4 y-intercept=?

Answers

y-intercept is 1/2. y= -1/8x + 1/2
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