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
adell [148]
2 years ago
13

1. Is 2/12 = 5/28 a true proportion?

Mathematics
2 answers:
Tomtit [17]2 years ago
7 0

Answer:

  • See below

Step-by-step explanation:

<h3>Step 1</h3>
  • 2/12 = 5/28
  • 2*28 = 12*5
  • 56 = 60

False equation

<h3>Step 2</h3>
  • No, because the cross products are not equal.
  • The proportion is not true, because 2/12 and 5/28 are not equivalent ratios.
Oliga [24]2 years ago
5 0
<h3>Solution (1):</h3>

<u>We know that:</u>

  • Given proportion: 2:12 = 5:28

Step-by step calculations:

<u>Simplify the LHS:</u>

  • 2:12 = 5:28
  • => 1:6 = 5:28

Remember:<em> (a:b = c:d) = (a x d = b x c)</em>

<u>Use cross multiplication:</u>

  • => 1:6 = 5:28
  • => 28 = 30 (False)
<h3>Solution (2):</h3>
  • No, because the cross products are not equivalent.
  • The proportion is not true, because 2/12 and 5/28 are not equivalent ratios.

You might be interested in
Root99 + root44<br> can someone help?
iogann1982 [59]

Answer:

here I worked it out on my calculator so it should be right

5 root 11

6 0
2 years ago
2, 11, 20, 29, 38, 47, 56,...
SIZIF [17.4K]

Answer:

B

Step-by-step explanation:

For example, subtract 56 by 47, you get 9. Each term is 9 more than the previous term.

3 0
3 years ago
Graph the solution of y-2&gt;1 on a number line
Angelina_Jolie [31]
First, you need to move 2 to the other side. You accomplish this by adding 2 to 1. You have y>3. Since your variable is smaller than 3, draw an open circle on the 3 mark and a squiggly line left of 3. 
8 0
3 years ago
Please help ill give brainliest
sweet [91]

Answer:

D

Step-by-step explanation:

it is the only one that is correct

7 0
3 years ago
Read 2 more answers
21 is 84% of what number?
Radda [10]
21 is 84% of 25

Convert the percentage (84) into a decimal by dividing it over 100:
\frac{84}{100} = 0.84

Divide 21 over 0.84:
\frac{21}{0.84} = 25
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the measure of angle K? (5x+10) (6x-1)
    15·1 answer
  • Which ordered pair is a solution to the system of equations shown in the graph below?
    11·1 answer
  • For breakfast, Ron can choose from cereal, pancakes, or scrambled eggs. he will also choose form bacon or sausage. Then he will
    9·1 answer
  • Pirate Jack has an equal number of gold and silver coins. If Pirate Jack splits all of his coins into 7 equal piles for his parr
    6·1 answer
  • April claims that 1 + cos2(theta) / sin2(theta)= 1 / sin2(theta) is an identity for all real numbers thetatheta that follows fro
    7·1 answer
  • An automobile club reported that the average price of regular gasoline in a certain state was ​$2.61 per gallon. The following d
    8·1 answer
  • Which value for x makes the sentence true?
    9·1 answer
  • The function f(x) varies inversely with x and f(x)=2 when x = 16.<br><br> What is f(x) when x = 4?
    7·1 answer
  • If X=sin 130° + cos 130° then<br>1)X&lt;0 2)X=0 3)X&gt;0 4)X greater than or equal to 0​
    7·1 answer
  • can someone help with this please! tell what number each symbol is equivalent to and be sure to show how to answer it, i will gi
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!