20 PIONTS Jerome has Jerome has
1/4 of the group’s video games at his house. Mario has 2/5
of the group’s video games at his house. What fraction of the group’s video games is either at Jerome’s house or Mario’s house?

13/20

Step-by-step explanation:

13/20 of the group's video games are at Jerome or Mario's house.

Jerome has 1/4

Mario has 2/5

The question asks what fraction of the video games are at either of their houses. Therefore, we need to add the fractions together to find out the total fraction of the video games at both of their houses.

1/4  +  2/5

We can't add these together because they have different denominators. We'll need to find the least common denominator of 4 and 5 before we can add them.

4 x 5 = 20

The common denominator is 20

1/4 = ?/20

In order to find the numerator, ask yourself what we multiplied the denominator by to get the new denominator. In this case, we multiplied 4 by 5 to get 20. Therefore, we need to multiply 1 by 5 to get an equal fraction.

1 x 5 = 5

1/4 = 5/20  

2/5 = ?/20

2 x 4 = 8

2/5 = 8/20

Our fraction is 8/20.

Now that the fractions both have the same denominator, we can add them together easily.

5 + 8 = 13

5/20 + 8/20 = 13/20

Add the numerators together to get the final answer.

Therefore, 13/20 of the group's video games are either at Jerome or Mario's house.

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.