1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elenna [48]
2 years ago
7

Solve the proportion: Round answer to nearest tenth, if necessary: r =_____

Mathematics
2 answers:
mart [117]2 years ago
3 0

Answer:

The value of r is 4

Step-by-step explanation:

\frac{r}{4}  =  \frac{60}{120}

In order to find the value of r, you need to get rid of denorminator. By multiplying 4 to both sides:

(r/4)×4 = (60/120)×4

r = (1/2)×4

= 2

Margarita [4]2 years ago
3 0

Answer:

r = 2

Step-by-step explanation:

Note that 60/120 reduces easily to 1/2.  Then we have:

r/4 = 1/2

Multiplying both sides by 4 removes the fractions, yielding r = 2

You might be interested in
Given the function f(x) = The quantity of 2x minus 5, divided by 3 , which of the below expressions is correct? (1 point) f−1(x)
Anuta_ua [19.1K]

Answer:

f^{-1}(x)=the quantity of 3x plus 5 divided by 2

Step-by-step explanation:

We are given that a function f(x)=\frac{2x-5}{3}

We have to find the correct expression

Suppose y=\frac{2x-5}{3}

3y=2x-5

3y+5=2x

x=\frac{3y+5}{2}

Therefore, f^{-1}(x)=\frac{3x+5}{2}

Answer:f^{-1}(x)=the quantity of 3x plus 5 divided by 2

8 0
3 years ago
Solve for x.
Ivanshal [37]

Answer:

x = -3.25

Step-by-step explanation:

2/5 = 0.4

0.4x - 0.2 = -2(3/4)

-2(3/4) = -2/1 * 3/4 = -6/4

0.4x - 0.2 = -6/4

Convert to fraction

2/5x - 1/5 = -6/4

Add 1/5 to both sides

-6/4 + 1/5 = -30/20 + 4/20 = -26/20

2/5x = -26/20

Convert to decimal

0.4x = -1.3

-1.3/0.4 = -3.25

x = -3.25

8 0
2 years ago
PLEASE ANSWERERRREEERRR
Vladimir79 [104]

the operation:

2*10^1 - 4*10^0 = 20 - 4 = 16

Gives a square number.

<h3>How to get a perfect square?</h3>

A perfect square is the product of a number and itself.

As you can see in the example, 16 is a square number. Then let's try to get 16.

To get 16 we can use the difference:

20 - 4

So the first therm needs to be equal to 20, and the second equal to 4.

To write 20 in scientific notation we have:

2*10^1

To write 4 in in scientific notation:

4*10^0

Then the operation:

2*10^1 - 4*10^0 = 20 - 4 = 16

Gives a square number.

If you want to learn more about square numbers:

brainly.com/question/21694652

#SPJ1

5 0
2 years ago
Factor the expression over the complex numbers. x2+36 Enter your answer in the box.
Zina [86]

hope this help Answer:( x - 3i√2)(x + 3i√2)

solve x² + 18 = 0

x² = - 18 ⇒ x = ±√- 18 = ±3i√2

factors are ( x - (3i√2))(x - (-3i√2))

x² + 18 = (x - 3i√2)(x + 3i√2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A bookstore owner is conducting market research to forecast sales for the coming year. The bookstore is open 360 days a year and
statuscvo [17]
156 dollars because 13 times 12 (months)
equals 156
4 0
2 years ago
Other questions:
  • In the accompanying diagram of parallelogram ABCD, LaTeX: m\angle A=2x+15 m ∠ A = 2 x + 15 and LaTeX: m\angle B=x m ∠ B = x . Fi
    13·1 answer
  • How are perpendicular lines and interesting like alike? How are they different
    7·1 answer
  • H is equal to?????????????????? ​
    7·2 answers
  • Gavyn was thinking of a number. Gavyn doubles it and gets an answer of 30.6. What was the original number?
    15·1 answer
  • Write the equation of a line that is parallel to y= -5/4x + 7 and that passes through the point (-4,1)
    6·1 answer
  • The Unique Glass Company reported sales of $24 million in 1995, and sales increased by 15% each year for the next 10 years.
    15·1 answer
  • -y/6=<br> -52 <br> Simplify your answer as much as possible.
    9·2 answers
  • A person hikes 4 miles in 2.5 hours. Find the unit rate in miles per hour.
    12·1 answer
  • Laney bought some candy from the bulk food store. She bought a 290 gram bag of gummy worms, a 450 gram bag of sour keys, and 670
    11·2 answers
  • X + (-4) = -2 <br> What does X repesents??? Please help
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!