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
Alenkinab [10]
3 years ago
11

Which equation correctly shows the multiplication of the means and extremes in the proportion 7.2∕9.6 = 21.6∕28.8?

Mathematics
1 answer:
vampirchik [111]3 years ago
6 0

Which equation correctly shows the multiplication of the means and extremes in the proportion 7.2 ∕ 9.6 = 21.6 ∕ 28.8?

a. 7.2 ⋅ 9.6 = 21.6 ⋅ 28.8

b. 9.6 ⋅ 21.6 = 28.8 ⋅ 7.2

c. 7.2 ⋅ 21.6 = 28.8 ⋅ 9.6

d. 7.2 ⋅ 28.8 = 21.6 ⋅ 28.8

Answer:

b. 9.6 ⋅ 21.6 = 28.8 ⋅ 7.2

Step-by-step explanation:

When a proportion say a/b = c/d is given, the outer terms are called the extremes while the inner/middle terms are called the means.

In the case of a / b = c / d,

the outer terms are a and d

the inner terms are b and c

Often times, we find the cross products of the proportion to test whether the two ratios in the proportion are equal. To do that, we find the product of the extremes and equate it to the product of the means.

In the case of a / b = c / d,

the cross products are a x d and b x c

So if a x d = b x c, then a/b = c/d is a true proportion.

Now to the question;

Given proportion: 7.2 / 9.6 = 21.6 / 28.8

Extremes = 7.2 and 28.8

Means = 9.6 and 21.6

The correct multiplication of the means and extremes is therefore

9.6 x 21.6 = 7.2 x 28.8

or

9.6 · 21.6 = 7.2 · 28.8

You might be interested in
Please help me! this is important.
Dafna11 [192]
I’m guessing C , shi mad confusing
7 0
3 years ago
Put this into Y=Mx+B form please​
STatiana [176]
Y = 2x + 3



First, find the y-intercept (b). This is where the line meets the y-axis. The line meets the y-axis at 3, so the y-intercept is 3.

Now, find the slope (m) of the line. Slope is rise divided by run. The line goes up by 2, over by 1, up by 2, over by 1, and so on. So, the rise is 2 and the run is 1. 2 divided by 1 is 2, so the slope is 2.

Put these together into the equation to get y = 2x + 3.
6 0
3 years ago
What is equivalent to 7(3x-2)+4(x+5)
Sladkaya [172]

Distribute 7 to 3x and -2, and 4 to x and 5

7(3x - 2) = 21x - 14

4(x + 5) = 4x + 20

Combine like terms

21x + 4x = 25x

-14 + 20 = 6

25x + 6 is your answer

hope this helps

3 0
3 years ago
Read 2 more answers
Children sometimes mistakenly read the number 1001 as “one hundred one.” Why do you think a child would make such a mistake? Dra
sleet_krkn [62]

Step-by-step explanation:

they may think about it how they see it. Not 1001 but instead 100(and)1.

6 0
2 years ago
Can some one pls help
Doss [256]

Answer:

I will try

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Complete equation so that the solution is -2 X/2=-2
    13·1 answer
  • If you grow 523 eggplants and sell 378, how many do you have left?
    5·1 answer
  • 2x+3y=20 <br> -2x+y=4 <br> Solve algebraic
    9·1 answer
  • 50 points! ASAP!<br><br> Can someone answer this, and show their work?<br> Thank you!
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=8%20%7B%7D%5E%7B2%7D%20%20%2B%2028%20%2B%2024" id="TexFormula1" title="8 {}^{2} + 28 + 24" al
    12·2 answers
  • If I got 121 questions and 99 wrong on a test what is the percentage that I got wrong?
    11·2 answers
  • Find the equation of a line that is parallel to y=x+3 and passes through the point (-2,-4)
    10·1 answer
  • Help<br> Please big exam!!!
    10·1 answer
  • Sixty people are invited to a party. There are 24 cups in a package and 18 napkins in a package. What is the least number of pac
    9·1 answer
  • please help please i dont get it
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!