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
OlgaM077 [116]
3 years ago
9

Help with equivalent ratios?

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

See below.

Step-by-step explanation:

Problem 1:

All answers are correct.

Problem 2:

You have the ratio 240 to 1/5. You want an equivalent ratio of some number to 1. You need to change the second number from 1/5 to 1. For equivalent ratios, you can multiply or divide both numbers of the ratio by the same number. What multiplication can you do to 1/5 to end up with 1? Multiply 1/5 by 5 since 5 * 1/5 = 1. The multiplication you do to 1/5 to end up with 1 is "multiply by 5." Since you must do the same multiplication or division to both numbers of a ratio, you multiply both 240 and 1/5 by 5 to get an equivalent ratio.

Answer: Multiply by 5

Problem 3:

The ratio is 240 ft to 1/5 minute.

We saw in problem 2 that you must multiply both numbers by 5 to end up with 1 as the second number, so let's do those multiplications.

240 ft to 1/5 minute =

= 240 ft * 5 to 1/5 minute * 5

= 1200 ft to 1 minute

We see that the rate 240 ft to 1/5 minute is equivalent to the rate 1200 ft to 1 minute.

Answer: 1200 ft/minute

You might be interested in
What are the factors of 408?
melisa1 [442]

Answer:

1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408

Step-by-step explanation:

plz rate Brainliest

3 0
3 years ago
Read 2 more answers
Jayson reads the first 48 pages of a 480-page book in 3 days. Marcus reads the first 50 pages of a 400-page book in 4 days. Nina
boyakko [2]

Answer:

Nina will finish first.

Step-by-step explanation:

Let's c<u>alculate how many pages each person reads in one day</u>:

  • Jayson ⇒ 48 pages / 3 days = 16 pages/day
  • Marcus ⇒ 50 pages / 4 days = 12.5 pages/day
  • Nina ⇒ 120 pages / 5 days = 24 pages/day

Then we <u>divide the number of pages of each book by reading speed of the respective person</u>:

  • Jayson ⇒ 480 pages ÷ 16 pages/day = 30 days
  • Marcus ⇒ 400 pages ÷ 12.5 pages/day = 32 days
  • Nina ⇒ 600 pages ÷ 24 pages/day = 25 days

Thus Nina will take the shortest time finishing her book.

3 0
3 years ago
Find the radius of the circle. The center of the circle is (2, -3) and a point that lies on the circle is (-1, -2).
kirill [66]

Answer:

\displaystyle r = \sqrt{10}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)

<u>Geometry</u>

  • Definition of a radius - the center of a circle to <em>any</em> point to the circumference

<u>Algebra II</u>

  • Distance Formula: \displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

Center (2, -3) → x₁ = 2, y₁ = -3

Circumference point (-1, -2) → x₂ = -1, y₂ = -2

<em>In this case, the distance d from the center to the circumference point would be the radius r of the circle.</em>

<u>Step 2: Find Radius </u><em><u>r</u></em>

  1. [Distance Formula] Define equation [Radius]:                                               \displaystyle r = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}
  2. Substitute in points [Radius]:                                                                         \displaystyle r = \sqrt{(-1-2)^2+(-2--3)^2}
  3. [Radius] [√Radical] (Parenthesis) Simplify:                                                     \displaystyle r = \sqrt{(-1-2)^2+(-2+3)^2}
  4. [Radius] [√Radical] (Parenthesis) Subtract/Add:                                           \displaystyle r = \sqrt{(-3)^2+(1)^2}
  5. [Radius] [√Radical] Evaluate exponents:                                                       \displaystyle r = \sqrt{9+1}
  6. [Radius] [√Radical] Add:                                                                                 \displaystyle r = \sqrt{10}
6 0
3 years ago
Help MATH ASAP MARKING BRIANLIT!!
FinnZ [79.3K]

Answer:

-41

Step-by-step explanation:

The change is -2

(-2*20)-1 = -41

5 0
4 years ago
A medical student is conducting a study to track boys’ weight from age 5 to age 18. The student graphs some data and determines
katrin2010 [14]

Answer:

A. The increase in the number of pounds a boy gains each year.

Step-by-step explanation:

A medical student is conducting a study to track boys’ weight from age 5 to age 18. The student graphs some data and determines the line of best fit is  

y = 1.73x + 80.13 ............ (1)

where x represents the age of the boys and y represents the weight of the boy corresponding to his age.

Therefore, the slope of the equation (1) represents the increase in the number of pounds a boy gains each year. (Answer)

4 0
3 years ago
Other questions:
  • The solution of a+b&gt;−4 is a&gt;−9. What is the value of b?
    7·1 answer
  • A student invested $4200 in certificate of deposit , one at 2% and the other at 3% . Find the amount invested at each rate of th
    12·1 answer
  • In distributive property what do the letters stand for
    11·1 answer
  • A farmer has 520 feet of fencing to construct a rectangular pen up against the straight side of a barn, using the barn for one s
    15·1 answer
  • If f(x) = 1/x + 2/x,<br> then f<br> (1) =
    8·2 answers
  • 1 4/9 + 2 6/9 is equal to 4 1/9 <br>True or False?​
    12·2 answers
  • What is 0.034 as a percent
    9·1 answer
  • There are 500 students in a high school senior class. Of these 500 students, 300 regularly wear a necklace to
    8·1 answer
  • At the start of a trip, a car's gas tank contains 12 gallons of gasoline. During the trip, the car consumes
    11·2 answers
  • 3 subtracted by 7 times a number
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!