3 years ago

Join my z oom id:998-0514-2461 pass:m8dGHM

Mathematics

2 answers:

xenn [34]3 years ago

7 0

Answer:

ok....

Step-by-step explanation:

why?

Iteru [2.4K]3 years ago

5 0

This site is only for education related questions. You should only answer or ask questions. That's what we are here for. Whoever is reading this answer, please spread it to stop people from zooming, hurting others, posting non-related to education, or just communicating with others because this is not what Brainly is for.

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Delvig [45]

Answer:

27. C

28. D

Step-by-step explanation:

The average of all grades in his fencing class, including the upcoming one, (all grades summed up divided by the amount of grades) must be equal to 86 (percent), hence C is the right answer for 27.

Solving this equation gives:

$\frac{75+88+62+100+x}{5} = 86\\325 + x = 86 \cdot 5\\x = 430 - 325 = 105$