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dezoksy [38]
3 years ago
13

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE GIVE EXPLINATION THE HWERK IS PERCENTS

Mathematics
2 answers:
mestny [16]3 years ago
8 0

Answer:

a. 28

b. 6.5

c. 30

Step-by-step explanation:

1% = 80÷100

35% = 0.8×35

1% = 0.65

0.65 × 10 = 6.5

1% = 0.5

60% = 0.5×60

babunello [35]3 years ago
4 0

Answer:

28

6.5

30

another way you can get these answers is by cross multiplying. In order to do that you need to identify the percent, the whole (of), and the part (is). In identifying the whole and the part, look for the word is, and the word of. The number that is associated with is either the part or the whole. (There is <u>6</u> out of <u>80</u>, what is the percentage?) always set the percentage out of a hundred.

So from there we set up the proportion:

ONE

(we don't know the part in any of them)

X/80=35/100 (cross multiply by putting the numbers on top of each other for the fractions)

TWO

X/65=10/100

THREE

X/50=60/100

Hope this helps, have a good day and remember to be tiger fierce!! :) (also, sorry that it is late.)

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A person must score in the upper of the population on an IQ test to qualify for membership in Mensa, the international high-IQ s
Anton [14]

Answer:

The person must have a score of 131 to be able to qualify for Mensa

Step-by-step explanation:

The complete and correct question is as follows;

A person must score in the upper 2% of the population on an IQ test to qualify for membership in Mensa, the international high-IQ society. There are 110,000 Mensa members in 100 countries throughout the world (Mensa International website, January 8, 2013). If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what score must a person have to qualify for Mensa(to whole number)

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