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disa [49]
3 years ago
8

In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these resu

lts, predict the number of females in the school.
a: 275
b: 343
c: 585
d: 686
Mathematics
1 answer:
netineya [11]3 years ago
7 0
C: 585, You divide 1371 by 75, and multiply that by 32, then round up.  1371 is proportional to 75 and x is proportional to 32. 
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Es of two children are 11 and 8 years.
nikdorinn [45]

Answer:

<em>In 5 years the product of their ages will be 208</em>

Step-by-step explanation:

The age of two children is 11 and 8 years.

Let's call x the number of years ahead.

We need to find when the product of their future ages is 208. The 11 years old child will be 11+x years old and the other child will be 8+x years, thus:

(11+x)(8+x)=208

Operating:

88+11x+8x+x^2=208

Simplifying:

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Factoring:

(x-5)(x+24)=0

Solving:

x=5, x=-24

The negative solution is not valid, thus x=5

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3 0
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3 0
3 years ago
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Nezavi [6.7K]
I’m not sure if this is correct but
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3 0
3 years ago
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Scrat [10]
First expand by multiplying
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As them
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8 0
3 years ago
Read 2 more answers
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aksik [14]

Answer:

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Step-by-step explanation:

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8 0
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