Solve the proportion

Answers

Answer 1

To solve this, you need to cross multiply the fractions.

Let’s say you have these fractions:
A / B = C / D

To cross multiply, multiply the denominator of the first fraction (B) by the numerator of the second fraction (C). Multiply the numerator of the first fraction (A) by the denominator of the second fraction (D).

You get B x C = A x D

After cross multiplying your fractions, you get 63 = 7(c +4)

Distributing the 7 into c+4 gives you this:
63 = 7c + 28

Now solve this like a normal equation with a variable

63 = 7c + 28
35 = 7c
5 = c

To double check that, plug c = 5 into the original equation.

1/(5) + 4 = 7/63
1/9 = 7/63

7/63 simplifies into 1/9 (7:7 = 1, 63/7 = 9)

1/9 = 1/9 so c = 5 is correct

Related Questions

Shawna went shopping at the thrift store yesterday and came home with 12 items and she only spent $31.50. She only got shirts and pants. If each shirt cost $2 and each pair of pants cost $3.50, which system of equations would represent this situation?

Answers

Assuming pants=x and shirts=y

2y+3.50x=31.50 and 2y= 31.50-3.50x

I hope this helps you out!

What is the average of 100, 54 and 88?

Answers

Answer:

about 80.6

Step-by-step explanation:

(100+(54+88))/3

The answer is 80.67 round to the nearest tenth place btw

Q1: A number minus 4 is greater than 2 times a number

Answers

Answer:

x - 4 > 2x

(see below to solve for x if needed)

Step-by-step explanation:

"Greater than" is key word for the greater than symbol: >.

"A number" can be represented by x.

So "a number minus four" would be x - 4 and "two times a number" would be 2x.

So "A number minus 4 is greater than 2 times a number" is:

x - 4 > 2x

If you were to solve for x, it would be:

x - 4 > 2x

-x -x

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

-4 > x

x < -4

1 half of 4 over 5 = ____ fifth(s)

Answers

Answer:

2/5

Step-by-step explanation: 1/2 of 4/5 = 2/5

Which expression is equivalent to b less than 50?
A 50b
B b - 50
C 50/b
D 50 - b

Answers

Answer:

50-b

Step-by-step explanation:

Whatever letter/number it begins with, it's that minus the second letter/number.

What is the slope of the line perpendicular to
y=3x-12

Answers

Answer: y-3x=12. y=3x+12. If the line is perpendicular it means its slope is the negative reciprocal of the given lines slope. m = 3 negative reciprocal = -1/3. So the slope of the equation of the line

Step-by-step explanation:

Answer:

-1/3

Step-by-step explanation:

(-1)(m)^(-1)

this is the way to make a slope perpendicular

y=mx+b

m=slope

b=y-intercept

so:

(-1)(3)^(-1)

-1/3 is the slope of the line that is perpendicular to y=3x-12

Hope that helps :)

Please give brainliest

Find the slope of the line.

Answers

Answer:

Step-by-step explanation:

Any horizontal line has a slope of 0.

Need help ASAP please!

Answers

Answer:

Step-by-step explanation:

See the attached image.

Write the pair of fractions as a pair of fractions with
common denominator
1/2 and 1/3

Answers

2/10 = 3/10, 2/5 = 4/10

Answer:

3/6 & 2/6

1/2 x 3, 1x3=3, 2x3=6, so it's 3/6.

1/3 x 2, 1x2=2, 3x2=6, so it's 2/6.

A label that wraps around a box of golf balls covers 75 percent of its lateral surface area. What is the value of x?

Answers

Answer:

To find the area of the rectangular prism, use the formula:

A = width x height x length

A = 2 x 2 x 3

A = 12

Now multiply A with 0.75

12 x 0.75 = 9

x = 9 in³

hope this helps

Step-by-step explanation:

so its 8p = 56 is the frist bit and the second is 7. BOOM

Answers

p=7, I don't know if this is a question or not

Find the solutions for 6x^2 -7x-20=0

Answers

Answer:

x=5/2, x=-4/3

Step-by-step explanation:

A roulette wheel consists of 18 red slots, 18 black slots, and 2 green slots. A player can wager $1 that a marble will land in a red slot, in which case the player would gain a $1. If the marble lands in a slot that isn't red, then the player loses their $1 wager. Let X represent the player's gain from a random $1 wager on red. Here's the probability distribution of X along with summary statistics:
Lose Win
X = gain (S) -1 1
Р(X) 20/38 18/38
Мean: Ax-$0.05
Standard deviation: ax$1.00
Suppose a player decides to wager $5 instead of winning $5.
Let Z represent the player's gain from a random $5 wager on red. possible outcomes become either losing or , so
What are the mean and standard deviation of Z? dollars?

Answers

Answer:

-$0.26 ; $5

Step-by-step explanation:

Given that :

____________ Lose ______ Win

X =$1 _______ - $1 ________ $1

P(X) _______20/ 38 _____ 18/38

Mean, Ux = - $0.05

Standard deviation, σx = $1.00

If the wager is $5 instead of $1

Mean = Σx*p(x)

Mean = (-5 * 20/38) + (5 * 18/38)

Mean = - 2.6315789 + 2.3684210

Mean (μ) = −0.26

Standard deviation :

Sqrt(Σx²p(x) - μ²)

[(-5^2)*(20/38) + (5^2)*(18/38)] - (-0.26^2)

(13.157894 + 11.842105) - 0.0676

= 24.999999 - 0.0676

= sqrt(24.932399)

= 4.9932353

= 5

A jar contains 666 red jelly beans, 666 green jelly beans, and 666 blue jelly beans.
If we choose a jelly bean, then another jelly bean without putting the first one back in the jar, what is the probability that the first jelly bean will be green and the second will be green as well?

Answers

Answer:

666/1998 x 665/1997 = 665/5991 or 0.110999833083

A school earns $70 from selling 50 tickets for the school play. Each ticket costs the same price.
How much does the school earn for one ticket ??

Answers

70/50= 1.4
$1.4

ANSWER CHECK:
1.4x50
=70

Can someone please help meee

Answers

Answer:

90 degrees

Step-by-step explanation:

If two angles are supplementary they are a linear pair which means they form a straight line, and if you know a straight line equals 180 degrees which is the total degrees of a triangle.

Now if you have two supplementary angles and they are congruent that means not only are they right angles but its half of 180 so you divide these pair of 2 by 180 giving you your total of 90 degrees.

Have a nice rest of your day !

Please help ASAP!!!!

Answers

Answer:

-4

Step-by-step explanation:

32÷-8=-4

Data represented by quantities is called data.

Answers

Four types of data (nominal, ordinal, interval, and ratio) that represent values or observations that can be sorted into a category

Can somebody help me?

Answers

1.) -12b + 6c + 18
2.) 6(-2b +c+3)
3.) 6( -2(-2) + (-3) +3)=
6(4-3+3)=
6•4=24

potrzebuję na teraz pls

Answers

Answer:

I don't know what is this

HELP HELP HELPPPP SOMEONE PLEASE-

Answers

Answer:

Its B

Step-by-step explanation: very ez

Answer:

B. All of these statements are true

Step-by-step explanation:

$10 is the smallest amount shown, therefore a is correct.

$25 is the greatest, so c is also correct

and a majority of the tickets start at $15, making d correct

Angie has 3 pink bows, 1 blue bow, and 6 purple bows in a box. She will randomly choose 1 bow from the box.
What is the probability Angie will choose a purple bow?

Answers

60%
Ex:6+3+1=10
6/10 bows are purple
6/10 = 60/100 or 60%

Page 153
30. A car's value is a function of many things,
including the total mileage on the car. The
following graph illustrates the depreciation of a
car as more miles are driven. Find the value of
f(50,000) and explain its meaning. What is the
range of this function?
Car's valde
$14,000
$12,000
$10,000
$8.000
$6,000
$4,000
$2,000
$0
20,000 40.000 60.000 80.000 100.000 120,000
Mileage

Answers

If you’re on plato the answer would be c

FIRST TO ANSWER GETS BRAINLIEST!!!
Find the y-intercept of the following line:
y=−8x+7

Answers

The y intercept is 7

Answer:

Step-by-step explanation:

y = mx + b

The y-intercept is b.

y = -8x + 7

The y-intercept is 7.

A cyclist starts from the point si = (7, 7, 4) at t = 0 and moves with a constant velocity of v → =(4, 5, 5) and cyclist motion can be depicted by the expression, s = si + vt which gives position vector of cyclist. Determine the distance travelled by the cyclist between t = 4 s and t = 23 s. (Distance is in meters)
A. 154.36 m
B. 157.36 m
C. 152.36 m
D. 155.36 m

Answers

Answer:

A. 154.36 m

Step-by-step explanation:

I got it "Correct"

Answer:

A. 154.36 m

Step-by-step explanation:

Have a great day

Given the balanced equation representing a reaction:

2H2 + O2 > 2H2O

The oxidation state of hydrogen in this reaction changes from

A)
–1 to +1

B)
–1 to +5

C)
0 to +1

D)
+5 to –1

Answers

Answer: The correct answer is A) -1 to +1

What fraction of the shape is shaded?

Answers

Answer:

1.75/8 would be your answer if im right.

Answer:

dude I want the same ans can anyone help plzz

what is the value of 4/15 divide 2/3

Answers

Answer:

0,4

Step-by-step explanation:

4/15 : 2/3 = 4/15 × 3/2 = 2/5 × 1 = 0,4

Can someone answer this please!!! I only have 5 mins and u will get Brainly too :)

Answers

Answer:

18 units square

Step-by-step explanation:

Given

The attached trapezium

Required

Determine the area

From the attachment, the height, h is:

[tex]h = 3\ units[/tex]

And parallel sides are:

[tex]s_1 = 3[/tex]

[tex]s_2 = 9[/tex]

So, the area is calculated as:

[tex]Area = \frac{1}{2}(s_1 + s_2) * h[/tex]

[tex]Area = \frac{1}{2}(3 + 9) * 3[/tex]

[tex]Area = \frac{1}{2} * 12 * 3[/tex]

[tex]Area = \frac{36}{2}[/tex]

[tex]Area = 18[/tex]

Donna and Darcy collected newspapers for recycling. Donna collected 5 3/4 pounds of newspaper. Darcy collected 2 1/4 pounds of newspaper. How much newspaper did they collect between them?

Answers

Answer:

8 pounds

Step-by-step explanation:

5 3/4 + 2 1/4 = 7 4/4 = 8

Other Questions

Drag the tiles to the correct boxes to complete the pairs.Match the effects with their causes.Effect: Solar wind deflects toward the poles.Effect: An aurora is created.Effect: Space travel through the Van Allenbelts is dangerous.Cause: Earths magnetosphere traps radioactivesolar wind particles in bands around Earth.arrowRightCause: Earth is surrounded by a magnetic field.arrowRightCause: Solar wind particles interact with Earthsupper atmosphere.arrowRight 20 points and brainliestpls help english True or False: For every source I list on my Works Cited page, I need to also cite in the BODY of my paper at least one time. This is called an in-text citation because it is cited in the text of your paper. WILL MARK BRAINLIST JUST HELP NOWIf angle A in the diagram equals 45 degrees and angle B is 4x + 5 degrees, determine the value of X. A) 10 degreesB) 25/5 degrees C) 40 degrees D) 160 degrees The workers' union at a particular university is quite strong. About 96% of all workers employed by the university belong to the workers' union. Recently, the workers went on strike, and now a local TV station plans to interview workers (chosen at random) at the university to get their opinions on the strike. What is the probability that exactly of the workers interviewed are union members I need help I dont quite understand it f(x) = 5 0.2c and g(x) = 0.2(x + 5). Which two statements accurately describe Russias social structure in the early nineteenth century?The empires industrial sector was developing rapidly.The nobles had a lot of power under the feudal system.The nobles wanted a more modern society and the elimination of serfs.Many Russians were enslaved serfs who had little control over their lives.The nobles were striving to make Russia an industrial economy. Write a program named Twitter that accepts a users message and determines whether it is short enough for a social networking service that does not accept messages of more than 140 characters.If the message is more than 140 characters, output The message is too long. Otherwise output The message is okay. what is 3 divided by 1/5 :( what is 2.006 + 6.001? The line plot shows the amount of time (in hours) that Jodi practiced the flute over 8 days. A TV is originally priced at $350. There is a coupon for 40% off. After the 7% sales tax, what is the price you would pay for the tv What does nbt stands for compare and contrast the ancient Greek and Roman civilizations 5. Buying and selling of goods : * O A. Commerce B. Cottage industry O C. Entrepreneur O D. Mercantilism O E. Plantation Which of the following increases the equilibrium price of a used car and decreases the equilibrium quantity? an announcement by the U.S. Attorney General that the windows on older cars were made with cheaper glass that can explode at high speeds new federal legislation that raises the legal driving age to twenty-four in all states a new fee that used car dealers must pay to the government on all sales of used cars all of the above because each is consistent with the "law of demand" Think carefully about the impact technology has on teenagers Lives. Write an essay explaining why new technology is so important to teenagers.!!!!!HELLLLPPPP DO IN 10 MINS!!!!!!! Suzy needs a raise in her allowance to buy the new iPhone. In order to do so, she must make a total average of 90 in all of her classes. Her science average is an 85, her math average is a 92, her history average is a 95, and her choir class is a 95. Her English class is undetermined as of now. What does Suzy have to make in English to be able to receive her raise? Kenny is building a box using 2 identical square pieces of wood and 4 identical rectangular pieces of wood, as shown. What is the surface area of the box?Select one:84 336 108 434 Need help ASAP please about social studies. ..Note: I think the answer is d & b... but sometime I confuse with d & a.....What do you think, please give an opinion. I will give brainiest. Thank you