Answer:
-1/20
Step-by-step explanation:
2(3/8) - 4/5
6/8 - 4/5
30/40 - 32/40
-2/40
-1/20
Nobody can solve this without any further information?
No, because to half something you have to divide by 2 or multiply by .5
Using a proportional relationship, it is found that the two equations that have the same constant of proportionality are givn by:
с 1 and 3
<h3>What is a proportional relationship?</h3>
A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
In this problem, the functions and constants are given as follows:
- 3. 8y = 6x -> k = 6/8 = 3/4.
Equations 1 and 3 have the same constants, hence option c is correct.
More can be learned about proportional relationships at brainly.com/question/10424180
Answer:
option D.
Step-by-step explanation:
given,
5 married couples and we have to form the committee of 3 people such that no married couple comes together in the committee.
total number of people present = 5 × 2 = 10 people
selecting 3 people randomly = ¹⁰C₃ = 120 ways
number of ways of selecting couple = ¹⁰C₁× ⁴C₁
= 40 ways
so, ways to select committee which does not include married couple =
= 120 - 40 = 80 ways
so, the correct answer is option D.